3169results about How to "Improve adsorption efficiency" patented technology

The invention relates to a high efficiency water treatment flocculant for drinking water and water treatment comprising a metal cation flocculant which is characterized in that the high efficiency water treatment flocculant also comprises a high efficiency adsorption component and an assistant medicament to be remixed, inwhich the weight ratio is: the high efficiency adsorption component 5-15%, the metal cation flocculant 50-85%, the assistant medicament 5-15%. The obvious characteristics of the invention are that each component can play the advantages of high intensity of the flocs of the inorganic flocculant and large flocs of the polymeric flocculant, overcomes the drawback of small flocs of the inorganic flocculant and low intensity of the flocs of the organic flocculant. The existence of the high adsorption component plays the action of adsorption of the organic compounds and heavy metal ion which are difficult to flocculat and precipitate, also plays the role of aid-coagulation, decoloration and deflavour. Thus the flocculant of the invention has advantages of good coagulation effect, large alum blossom, rapid settling velocity, good effluent quality and few dosage or the like.

The invention comprises a PSA apparatus for the separation of a heavy component from a light component in a feed stream. The apparatus includes an adsorbent bed comprising either a mixture of adsorbents or composite adsorbent particles wherein each particle comprises two or more adsorbents. At least one of the adsorbents is comparatively weak and the other is comparatively strong. Another embodiment of the invention is a PSA prepurifier having a bed of adsorbent material which comprises a mixture of, or composite adsorbent particles wherein each particle comprises at least two adsorbents, at least one of the adsorbents being comparatively strong and at least another of the adsorbents being comparatively weak.

The invention relates to a method for removing heavy metal ions in water by using a graphene oxide sheet, which belongs to the technical fields of water purification and environmental protection. In the invention, the graphene oxide sheet is used as an adsorbent of the heavy metal ions, wherein the graphene oxide sheet is of a monatomic layer two-dimensional structure and has a huge specific surface while ensuring no obvious toxicity. In the purification process of the method, the operations are simple without pollution, and the copper ion adsorption efficiency is 10 times that of the active carbon. In the invention, the graphene oxide sheet adsorbing the metal ions can be recovered to the single sheet structure by a centrifugal separation or dialysis method and can be recycled.

The invention belongs to the field of adsorbing materials, and relates to an inorganic-inorganic hybrid material, particularly a graphene / clay composite material. The composite material is powdery, is compounded from porous graphene and clay, and has a porous structure; the porous graphene is inserted among clay layers through intercalation reaction; the mass ratio of the porous graphene to the clay is 1:(0.1-10); the specific area of the graphene / clay composite material is 200-250 m<2> / g, and the weight loss within 900 DEG C is 3-6 wt%; and the clay is montmorillonite, vermiculite, illite, kaolin or rectorite. The graphene / clay composite material can be easily dispersed, can be used for comprehensively and efficiently adsorbing heavy metals and organic substances, and has the characteristics of high dispersity and efficient and selective adsorbability for heavy metals and organic substances; the maximum comprehensive removal rate can reach 99%; and thus, the invention has wide prospects in industrialized application.

The invention belongs to the field of high polymer material synthesis, and relates to preparation of a graphene oxide-polyurethane foam material, in particular to a preparation method and application of the graphene oxide-polyurethane foam material. The preparation method of the graphene oxide-polyurethane foam material comprises the following steps: firstly, preparing graphene oxide by adopting an improved Hummers method, then mixing and stirring graphene oxide, polyether glycol NJ-330, foaming agent, foam stabilizer and catalyst at room temperature, adding isophorone diisocyanate, and finally, foaming further to obtain the graphene oxide-polyurethane foam material. The graphene oxide-polyurethane foam material prepared through the method can be applied to absorption of coloring matters or heavy metal ions in waste water, and has better absorption and removal effects as shown in a test by taking a solution containing malachite green and Cd (II) as the absorption object. The application of the foam material to treatment of the coloring matters and the heavy metal ions in sewage has the characteristics of simplicity in operation and high absorption rate, and has a certain practical value.

The invention discloses an MOFs (metal-organic frameworks) based carbon dioxide adsorbent, which includes MOFs and organic amine loaded in the pore channels and on the surface of MOFs. The mass ratio of the MOFs to the organic amine is 0.1-10:1. The MOFs based carbon dioxide adsorbent provided by the invention realizes the combined action of physical adsorption and chemical adsorption and can adsorb and store carbon dioxide at medium and low temperature, and regeneration and reutilization of the adsorbent can be realized under certain condition. The MOFs based carbon dioxide adsorbent has good adsorption capacity, high selectivity and cycling stability on carbon dioxide, and can overcome the disadvantages of easy volatilization and easy corrosion of equipment in organic amine so as to meet the industrial processing requirements. The invention also discloses a preparation method of the MOFs based carbon dioxide adsorbent and application of the adsorbent in adsorption of carbon dioxide in flue gas.

The invention relates to a composite fiber. The composite fiber comprises a fiber carrier, and a graphene aerogel layer covering the outer side of the fiber carrier. According to the composite fiber provided by the invention, the relatively thin graphene aerogel layer covers the surface of the composite fiber, and a self surface shielding effect of existing graphene aerogel is overcome; the adsorption speed and adsorption efficiency of the graphene aerogel of the unit volume are improved; the fiber carrier of the composite fiber provided by the invention provides a bracket for the graphene aerogel and the mechanical strength is enhanced; when the composite fiber is used as an adsorption material, the composite fiber can be in seamless butt joint with an existing cigarette production process directly, and replaces an existing adsorption fiber so that the specific adsorption on benzopyrene polycyclic aromatic hydrocarbon type harmful substances can be realized; and meanwhile, other aromatic substances in smoke are kept so that the flavor and aroma of cigarettes are not influenced.

The invention provides a production method of fructus monordicae extract with over 60% of mogroside V content. In the method, the fresh momordica grosvenori is subjected to the following technique processes: smashing, saccharification, extraction by water, concentration, sedimentation and centrifugation, ion exchange resin refining, macroporous resin refining, concentration, aluminum oxide refining, concentration, spray drying and finishing product. The method can produce high-quality fructus monordicae extract products, reduce material loss, shorten period of production, increase product yield, lower production cost, and is suitable for industrial production. The mogroside V content in the fructus monordicae extract produced by the method is more than or equal to 60%; the fructus monordicae extract has high product purity, single composition, pure white color, good color and taste, fresh and cool sweet taste like that of sugar, simultaneously overcomes the technical problem for industrial production of the high-content and high-quality fructus monordicae extract, and successfully realizes large-scale production.

The invention discloses magnetic submicron composite core-shell particles. In the magnetic submicron composite core-shell particles, Fe3O4 particles with the particle size of between 80 and 800nm are taken as a magnetic core, amorphous SiO2 is taken as an immediate shell layer and a substance with heavy metal absorption performance is taken as an outer shell layer. The invention also discloses a preparation method for the magnetic submicron composite core-shell particles. The preparation method comprises the following steps of: preparing the Fe3O4 particles with the particle size of between 80 and 800nm by a solvothermal method and taking the Fe3O4 particles as magnetic cores, performing alkaline hydrolysis of a silicon source reagent on Fe3O4 and dehydrating and condensing hydroxy groups so as to obtain amorphous SiO2 immediate shell layers, and coating the substance with heavy metal absorption performance on obtained submicron spheres under chemical or physical action to obtain the magnetic submicron composite core-shell particles. The submicron material has high performance of absorbing heavy metal ions in the sewage; and the material has stable characteristics, can be magnetically recovered and meets environmental protection requirements, and secondary pollution is avoided.

The invention discloses a kind of coal mercury discharging control method which is based on semi-drying method. Sprays additive into the boiler smoke, oxidizes the elemetary mercury into mercuric oxide easy to remove; then sprays liquid including oxidant into smoke and oxidizes the mercury, and the temperature is decreased and forms the low temperature for high efficiency absorption; sprays absorption agent into cooled smoke, eliminates the mercuric oxide and mercury; the solid particle containing mercury is collected through electricity deduster or baggage dedusting device. The invention reduces the cost of operation.

The invention discloses an additive to selectively lower the aldehydes substances in cigarette smoke, which uses the silica gel with thick holes as the carrier and introduces the functional group through modification to coat a layer of chemical compounds provided with amidogen, carbamido or amide and capable of reacting with aldehydes substances on the carrier surface and the hole channel surface, wherein the modified carrier is applied in the cigarette filter up and can selectively lower the contents of the aldehyde substances in the cigarette smoke, such as formaldehyde, aldehyde, propanal, acrylic aldehyde, crotonaldehyde and the like.

The invention relates to a preparation method for carbon microspheres with high specific surface area. The preparation method includes the following steps: a carbon material, an alkaline activator, a binder and a solvent are mixed and stirred to obtain slurry, or the alkaline activator, the binder and the solvent are mixed and stirred to obtain slurry; all the materials are granulated to obtain primary carbon microspheres; the primary carbon microspheres go through activation, pickling, washing and drying to obtain the carbon microspheres with the high specific surface area. The preparation method provided by the invention adopts low-value carbonaceous waste materials or amorphous carbonaceous raw powders to prepare the microsphere carbon material with the high specific surface area, so as to meet the use requirements of multiple fields; the preparation technique is simple, the operation is convenient, and large-scale production is facilitated; the prepared carbon microspheres with the high specific surface area have an excellent spherical structure, a high degree of sphericity and a controllable particle size, and barely contain metal impurities.

A process for preparing the efficient sulfur transferring agent used for the catalytic cracking of fume includes such steps as preparing ZnMgAlCe hydrotalcite from the active components (Zn, Mg and Al) and assistant (Ce and V) by codeposition method, preparing V-dipped ZnMgAlCo hydrotalcite by anionic exchange method, proportionally mixing it with kaolin and Al sol, grinding, vacuum drying and calcining. Its advantages are high SOx adsorptivity and desorptivity and high mechanical strength.

The invention provides a preparation method for oxidized graphene-poly-dopamine composite aerogel. The preparation method comprises the following steps that 1, 0.15-0.7 g of dopamine powder is dissolved in 10-18 ml of distilled water, the dopamine aqueous solutions are mixed with 50-60 ml of oxidized graphene aqueous solutions with the concentration of 5-6 mg / ml, and stirring is performed to obtain oxidized graphene-dopamine mixed solutions; 2, 3-9 ml of tris aminomethane buffer solutions with the concentration of 0.1-0.12 mol / L are dropwise added into the mixed solutions while stirring is performed, stirring is continuously performed for 2-2.5 h, and standing is performed to enable the dopamine to be fully polymerized to obtain oxidized graphene-poly-dopamine composite aquogel; 3, after being placed in an environment with the temperature ranging from minus 20 DEG C to minus 10 DEG C to be frozen for 24-30 h, the composite aquogel is processed through freeze drying, and then the oxidized graphene-poly-dopamine composite aerogel is obtained. The method is simple in technology, and the prepared composite aerogel has the advantages of being high in porosity, excellent in adsorptivity, high in strength and the like.

The invention provides a multifunctional three-layer type air strainer and relates to a strainer. The multifunctional three-layer type air strainer provided by the invention is antimicrobial, self-cleaning and self-nursing, and can be used for increasing a contact area between the strainer and the air, increasing the dust absorbing efficiency, prolonging the service time for filtering, eliminating the planktonic bacteria in air, decomposing harmful matters in air and releasing anion. Three layers of strainers are arranged in the multifunctional three-layer type air strainer, wherein the three layers of strainers are overlapped in turn and then are fixed together with frames by virtue of buckles; the frames and the buckles are arranged on the peripheries of the three layers of strainers; the first layer of strainer is a nonwoven filter cloth layer, a PET (polyester) long fiber filter cloth layer, a glass fiber cloth layer or a stainless steel wire strainer cloth layer; the second layer of strainer is an active carbon strainer cloth layer or a bamboo carbon filter strainer cloth layer; the third layer of strainer is a monofilament filter cloth layer, an apocynum venetum fiber filter cloth layer or a stainless steel wire strainer cloth layer; and the three layers of strainers all contain health functional agents.

The invention relates to a viscosity modifier for high or ultrahigh-strength concrete. The viscosity modifier comprises the following substances in percentage by weight: 2-10% of silica fume, 10-20% of pulverized coal ash, 2-3% of exciting agent and 67-86% of ultrafine powder. The viscosity modifier added into the high or ultrahigh-strength concrete at a ratio of 10-30% can reduce the viscosity of the concrete by 25-60%. By optimizing the particle size distribution of cementitious materials, the bulk density can be increased, the thicknesses of water film layers on the surfaces of particles in a cementitious system can be increased, the adsorption efficiency of a water reducing agent can be improved, the use amount of the water reducing agent can be reduced, and the viscosity of an aqueous solution in concrete can be lowered. Due to the morphology of powder particles and the action of charges on the surfaces of the powder particles, the interaction force of the particles can be reduced, the viscosity of the concrete can be lowered, and the strength of the concrete can not be affected. The viscosity modifier can be also used for a mortar system with low water-cement ratio.

The invention discloses a carbon-based composite material for arsenic and cadmium polluted soil remediation and application of the composite material. The carbon-based composite material disclosed by the invention is prepared by the steps: taking crop straws as raw materials, and charring to prepare charcoal; mixing with an iron salt solution according to a certain solid-liquid ratio, regulating the pH value of the solution in the process so as to realize coprecipitation of the two materials; performing pyrolysis, thereby obtaining the carbon-based composite material. The carbon-based composite material prepared in the invention is applied to arsenic and cadmium compound polluted soil, and methods such as turning over, watering and the like are combined, so that the content of arsenic and cadmium in an effective state can be obviously reduced; therefore, the arsenic and cadmium in the soil can be transferred to a direction with low biotoxicity and migration, the physicochemical properties of the soil can be improved to a certain degree, and the composite material is suitable to be applied to multiple types of soil. The arsenic and cadmium ions in a water body can be effectively removed, the preparation process is simple in operating steps, and the material is wide in source, low in production cost and environment-friendly.

The present invention is a treatment method for naphthalene dye intermediate H-acid production wastewater. After H-acid pretreatment wastewater is preprocessed, organic compounds such as, 1-amido-8- naphthol-3, 6-disulfonic acid (H-acid) and intermediate products, are adsorbed on the resin through alkalescence macroporous adsorption resin; the adsorbed water is added with lye for desorption regeneration and the regenerated liquid will be back into the previous production process for application. The CODcr of the treated wastewater can be effectively reduced to reach the national emission standards; the reclaimed H-acid sodium salt can be used. The resin can be desorbed and regenerated through lye for repeated use. The desorbed liquid is distilled and reclaimed, and the distilled effluent can be used repeatedly. The H-acid sodium salt and the intermediate products reclaimed through the invention can be used as raw materials for the original production process; therefore, the invention not only helps treating wastewater but also realizes waste resource utilization.

The invention discloses a magnetic nano hydroxyapatite adsorbent, preparation and application thereof. Nano hydroxyapatite Ca10(PO4)6(OH)2 is used as a matrix of the adsorbent, and magnetic powder Fe3O3 is uniformly dispersed in the matrix, wherein the mass ratio of the nano hydroxyapatite to the magnetic powder Fe3O3 is (1.5-1):1. The preparation method comprises the following steps of: dissolving FeCl2 and FeCl3 with a mass ratio of (0.75-0.85):1 in deoxidized water; then adding an ammonia solution and uniformly stirring; simultaneously adding a Ca(NO3)2 solution and a (NH4)2HPO4 solution and uniformly stirring to obtain liliquoid; heating the liliquoid at the temperature of 90-100 DEG C; and then obtaining the magnetic nano hydroxyapatite adsorbent through cooling, separating, washing, drying and grinding. The magnetic nano hydroxyapatite adsorbent has large specific surface area, high adsorption efficiency, low cost and easy separation and can effectively remove heavy metal ions in waste water.

The invention discloses a recycling device for an exhaust gas of a painted organic solvent. The recycling device comprises a painting fog removing device, a fan, an absorbing jar, a condenser and an oil-water separator which are connected in turn, wherein the painting fog removing device comprises a gas collecting tank, a cyclone dust collector and a bag type dust collector; the gas collecting tank is used for temporarily storing the exhaust gas of the organic solvent; and the gas collecting tank, the cyclone dust collector and the bag type dust collector are connected in turn. All componentsof the recycling device are reasonably and compactly jointed; collection efficiency is high; and the painting fog is efficiently removed while a trouble in frequently exchanging filter cotton is avoided. The invention also discloses a method for utilizing the recycling device for the exhaust gas of the painted organic solvent to recycle the organic solvent. The method comprises the following steps: removing the painting fog; absorbing; desorbing steam; condensing; and separating oil from water, wherein the step of removing the painting fog is carried out by changing the painting fog into painting powder and then efficiently removing the painting fog. Compared with a traditional process, the method is more reasonable, compact and labor-saving.

The invention belongs to the technical field of additives, and particularly discloses a mycotoxin purification agent for feed, a preparation method and an application of the agent. The mycotoxin purification agent contains montmorillonite, bentonite, bacillus and fermentation concentrate thereof, inactivated compound lactobacilli and fermentation concentrate thereof, and yeast cell wall polysaccharides. When the mycotoxin purification agent for feed provided by the invention is adopted, mycotoxin can be adsorbed and degraded simultaneously, mycotoxin in the feed is effectively removed, damages of the mycotoxin to animals are reduced, and incidence rate of gastrointestinal diseases and other diseases is reduced. The mycotoxin purification agent has the characteristics of simple preparation method, wide material source, low price and great market application value in the field of feed additives.

The invention relates to modified tussah silk fabric with functionalized nanometer chitosan and nanometer titanium dioxide. The modified tussah silk fabric is prepared by the steps in sequence: weaving the tussah silk fabric by utilizing tussah filament, preparing finishing liquor and finishing tussah silk fabric; and the technical problems that the existing textile materials in the modification technology can not effectively improve the properties that the tussah silk fabric has damage to the environment, is easy to wrinkle, not anti-bacterial and easy to shrink, has poor dyeing property, poor comfortableness and function, and the like can be solved, the comprehensive properties that the tussah silk fabric is anti-wrinkle, soft, anti-bacterial, shrink-proof, self-cleaning and ultraviolet ray-resistant, as well as the adsorption efficiency of dye, and the like can be improved and enhanced, and the tussah silk fabric has the technical benefits of being lower in preparation cost, simple in process, environment-friendly and easy to realize, etc.

The invention discloses a preparation method of a porous composite material for removing heavy metals in soil, which comprises the following steps: mixing an inorganic material and an organic material, molding, drying, sintering and the like to prepare a porous material substrate; activating the porous material with acid; and finally, in an organic or inorganic solution, treating the porous material with a silane coupling agent or any other organic molecule with adsorption, complexing and chemical linkage function on heavy metals to obtain a functional molecular layer, thereby obtaining the required porous composite material. The porous composite material has the characteristics of high selectivity for heavy metals and high adsorption efficiency when being used for remediating heavy-metal-containing soil. The porous material has the advantages of low consumption and long service life (up to 3-5 years). The technique can be widely used for remediating farmland or cultivated soil without influencing the normal cultivation and production of crops.

The invention discloses a grapheme type fiber cigarette filter and a preparation method thereof. The filter comprises a fiber carrier, wherein the fiber carrier is provided with a grapheme type material for absorbing harmful components in smoke. The filter loads the grapheme type material on a carbon fiber or acetate fiber carrier; and the carrier is added in the filter by adopting the binary filter production mode in the existing industries to produce a compound filter for absorbing harmful substances in the smoke which is generated when cigarettes are smoked. The filter applies unique phi absorption characteristics and higher surface active atom ratio of novel two-dimensional nanometer materials to efficiently absorb benzo [a] pyrene, volatile aldehyde ketone type cancer promoting molecules, phenol and HCN (Hydrogen Cyanide) under the condition of smaller adding quantity, so that the filter is environment-friendly and has no additional poison; as the amount is small and the effect is high, the harm of the cigarettes to human bodies is reduced under the condition of not influencing the inherent sensory quality of the cigarettes. And at the same time, the method has the advantages of simple technique, large-scale production and low cost, and has wide application foreground in the cigarette field of harm reduction and tar reduction.

The invention relates to a supported ion liquid active carbon as well as a preparation method and application thereof; the supported ion liquid active carbon provided by the invention is prepared from coconut shell carbon serving as a raw material by an immersion method; and the immersion liquid is a mixed solution mainly consisting of an ion liquid and ethanol at the volume ratio of (1:2)-(1:10). In the invention, the preparation method is simple; the prepared active carbon has higher absorptive capacity and higher absorption efficiency than those of the original active carbon; the consumption and working cost for the absorptive carbon can be effectively reduced; and the problem that carbon variety and amount are scarce in our country is relieved to a certain degree.

The invention provides a preparation of a bisphenol A submicron magnetic molecular imprint and application of the same in the detection pre-processing of packaged food, which belong to the technical field of material chemistry and food safety. A surface molecular imprinting technology and a magnetic solid-phase extraction technology are combined, and a magnetic submicron particle wrapped by a surface molecular imprint polymer (Fe3O4@MIP) is prepared by using a bisphenol A as a template molecule. A magnetic submicron material (Fe3O4) is synthesized by a hydrothermal process, the synthesized Fe3O4 is synthesized into a silicon-wrapped magnetic microsphere (Fe3O4@SiO2) by a sol gel process, the synthesized Fe3O4@SiO2 is coupled with 2-bromo-isobutyryl bromide to form Fe3O4@SiO2@Br with Br groups on the surface, and the synthesized Fe3O4@SiO2@Br is synthesized into a submicron particle with a surface molecular imprint (Fe3O4@MIP) by an atom radical transfer process. The prepared Fe3O4@MIP is used in the detection pre-processing of packaged food which comprises liquid food, liquid food containing a certain quantity of solids and solid food.

The present invention relates to aqueous surfactant systems that in diluted or undiluted form may be used for cleaning surfaces or may be used as an active cleaning base in various ready-to-use (or in-use) aqueous cleaning compositions suitable for surface cleaning. The invention also relates to a cleaning system comprising a surfactant system of the invention. According to the invention the cleaning efficacy of the surfactant system or cleaning system is increased by reducing or minimizing the size of the surfactants typically used in surfactant systems and reducing or minimizing the water solubility of the surfactant system.

The invention discloses a coal gasification wastewater treatment process, which comprises the following steps of: performing adsorption treatment in a primary adsorption tank; performing sedimentation treatment in a first sedimentation tank; performing biochemical treatment in a first biochemical unit; performing adsorption treatment in a secondary adsorption tank; performing sedimentation treatment in a second sedimentation tank; performing biochemical treatment in a second biochemical unit; and filtering and discharging. The coal gasification wastewater treatment process solves the technical problem that active carbon is added into an active sludge aeration tank to influence the effects of the biochemical treatment and the adsorption treatment in the conventional coal gasification wastewater treatment process, has the advantages of independent adsorption and biochemical treatment, combined arrangement, concise process, high treatment efficiency, no increase of salt content and stable operation, and is particularly suitable for treating coal gasification wastewater.

The invention discloses Fe3O4@SiO2 magnetic nanospheres as well as a preparation method and application thereof, and belongs to the field of arsenic polluted water treatment. A Fe3O4@SiO2 magnetic nanosphere comprises a magnetic Fe3O4 core and a microporous or mesoporous SiO2 layer wrapping the outside of the Fe3O4 core, wherein the particle size of the Fe3O4 core is 8-100nm, and the thickness of the microporous or mesoporous SiO2 layer is 2-150nm. The preparation method comprises the following steps: (1) preparing the magnetic ferroferric oxide core by adopting a coprecipitation method; and (2) preparing the Fe3O4@SiO2 magnetic nanospheres by adopting an improved stobe method. The preparation method has the advantages of being simple and low in cost; the prepared Fe3O4@SiO2 magnetic nanospheres have large surface areas and high adsorption efficiency on arsenic pollutants; a magnetic material can be repeatedly recovered, and thus the secondary pollution caused by the absorbent material is reduced.

The invention discloses amino-terminated modified cellulose, and a preparation method and application thereof. The method comprises the following steps: firstly, soaking a bagasse material which is cleaned and dried into constant weight in concentrated alkaline for over 10 hours; washing, carrying out suction filtering and drying to obtain alkaline bagasse fibers; then carrying out an oxidation reaction on the alkaline bagasse fibers and a strong oxidant in a dark condition, so as to obtain dialdehyde bagasse cellulose; with methyl methacrylate and ethanediamine as raw materials, stirring in an organic solvent under dark and oxygen-isolated conditions to carry out a polymerization reaction, so as to obtain an amino-terminated hyperbranched polymer; and finally carrying out a reflux reaction after dissolving the dialdehyde bagasse cellulose and the amino-terminated hyperbranched polymer into the organic solvent, so as to obtain the amino-terminated hyperbranched grafted dialdehyde cellulose. The modified cellulose not only has good adsorptive property on heavy metal ions in a wastewater solution, but also is easy to separate after adsorption. Thus, the amino-terminated modified cellulose has the water purification effects of simple method and low cost.