88results about How to "Wide frequency range of visible light response" patented technology

The invention discloses a wideband efficient photocatalyst Li3FeGeO5 with the visible light response function and a preparing method thereof. The chemical composition formula of the photocatalyst is Li3FeGeO5. The invention further discloses the preparing method for the material. The obtained photocatalyst has the advantages of being wide in spectrum response range, high in light conversion efficiency, good in stability and the like. Under radiation of visible light, the photocatalyst has a function of decomposing harmful chemical substances and organic biomass and an antibacterial function; in addition, the preparing method is simple, low in resultant temperature and cost, and suitable for industrial production and application.

The invention discloses a wide-band and high-efficiency visible light responsive photocatalyst Li3FeGe2O7 and a preparation method thereof. The photocatalyst has the chemical composition of Li3FeGe2O7. The invention also discloses the preparation method of the material. The obtained photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability and the like. Under visible light irradiation, the photocatalyst has the effects of decomposition of harmful chemical substances and organic biomass and sterilization; and in addition, the preparation method is simple, low in synthesis temperature, low in cost, and suitable for industrial production and application.

The invention discloses a wideband and efficient photocatalyst LiSm2NbO6 with visible light response and a preparation method thereof. The chemical formula of the photocatalyst is LiSm2NbO6. The invention also discloses a preparation method of the material. The photocatalyst obtained by the preparation method has the advantages of wide spectral response range, high light conversion efficiency, good stability, and the like. Irradiated by visible light, the photocatalyst has the functions of decomposing harmful chemical substances and organic biomass and killing bacteria. Besides, the preparation method is simple, is low in synthesis temperature and cost and is suitable for industrial production and application.

The invention discloses a wideband efficient photocatalyst SrLi2GeO4 responding to visible light and a preparation method thereof. The chemical formula of the photocatalyst is SrLi2GeO4. The invention also discloses a preparation method of the photocatalyst. The obtained photocatalyst has the advantages of wide spectral response range, high optical conversion efficiency, and good stability. The provided photocatalyst can degrade harmful chemical substances and organic biomass, and kill bacteria under the irradiation of visible light, has the advantages of simple preparation method, low synthesis temperature, and low cost, and is suitable for industrial production and application.

The invention discloses a broadband and high efficiency visible light responsive photocatalyst AgYW2O8 and a preparation method thereof. The chemical composition of the photocatalyst is AgYW2O8. The invention also discloses a preparation method of the material. The photocatalyst prepared by the method provided by the invention has the advantages of wide spectral response range, high light conversion efficiency and good stability, etc, and has the effects of harmful chemical substance and organic biomass decomposition and sterilization under visible light irradiation. In addition, the preparation method has the characteristics of simplicity, low synthesis temperature and low cost, thus being suitable for industrial production and application.

The invention discloses a photocatalysis device for degrading printing and dyeing wastewater. The photocatalysis device comprises a pool body, wherein at least two light source installation plates arevertically arranged in the pool body and are used for dividing the pool body into a plurality of flow mixing chambers; a stirring shaft is vertically penetrated in each flow mixing chamber and is provided with at least one swirl vane component; the lower end of each stirring shaft penetrates out of the pool body to be fixedly sheathed with a belt pulley; and a plurality of belt pulleys are sheathed with the same belt. Compared with the prior art, the photocatalysis device comprises photocatalysis and Fenton oxidation which are carried out simultaneously, the plurality of flow mixing chambersare used for prolonging wastewater retention time, the rotation direction of each stirring shaft is changed to drive the swirl vane to rotate and continuously change a stirring range, the swirl reaction of sewage in the device is realized so as to accelerate photocatalyst and hydrogen peroxide to fully react, .OH is generated, the light source installation plates including light sources are used as the partition plates so as to guarantee the effective irradiation range of the light source. The photocatalyst has the characteristics of wide visible light response frequency range, high light conversion efficiency and good stability.

The invention provides a preparation method and application of a visible light Fenton catalyst and belongs to the technical field of preparation of photocatalysts. The method comprises the following steps: weighing soluble ferrous salt and soluble lithium salt according to the molar ratio, and adding the soluble ferrous salt and the soluble lithium salt into deionized water; weighing tungstate M2WO4.2H2O, and adding the tungstate M2WO4.2H2O into the deionized water; uniformly mixing the prepared solutions, and enabling ferrous ions, lithium ions and tungsten ions to be proportioned at 2 to 2 to 1; then adding a sodium hydroxide solution, enabling the solution to be alkaline and transferring a mixed solution into a hydrothermal reactor for reacting; after the reaction is finished, centrifugally separating, and washing and drying precipitation obtained by centrifuging to obtain visible light Fenton catalyst Li2Fe2WO7 powder. According to the method, the Li2Fe2WO7 is synthesized by adopting a hydrothermal method; the preparation method is simple and controllable; the obtained product has better visible light catalytic activity and can be used for treating organic wastewater.

The invention discloses a wide-band high-efficiency visible light responding photocatalyst LiNd2SbO6 and a preparation method thereof. The chemical composition formula of the photocatalyst is LiNd2SbO6. The invention further discloses a preparation method of the photocatalyst. The photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability and the like, and has the effects of decomposing harmful chemical substances and organic biomass and sterilizing under visible light radiation; and the preparation method is simple, low in synthesizing temperature and low in cost, and is suitable for industrial production and application.

The invention discloses a broadband efficient visible-light response photocatalyst BaLi4Ge5O13 and a preparation method thereof.The chemical composition formula of the photocatalyst is BaLi4Ge5O13.The obtained photocatalyst has the advantages of a wide spectral response range, high light conversion efficiency, good stability and the like, and has the effects of decomposing harmful chemical matter and organic biomass and killing bacteria under visible light irradiation.In addition, the preparation method is simple, the synthesis temperature and cost are low, and the broadband efficient visible-light response photocatalyst BaLi4Ge5O13 and the preparation method thereof are suitable for industrial production and application.

The invention discloses an efficient broadband visible-light-responding photocatalyst LiAlSiO4 and a preparation method thereof. A chemical composition formula of the photocatalyst is LiAlSiO4. The invention further discloses the preparation method of the material. The photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability and the like, and has functions of decomposing harmful chemical substances and organic biomass and killing bacteria under irradiation of visible light; besides, the preparation method is simple, the synthesis temperature is low, the cost is low, and the photocatalyst is suitable for industrial production and application.

The invention discloses a broadband and efficient visible-light-responded photocatalyst K2Ni2Sb8O23 and a preparation method thereof. The chemical composition formula of the photocatalyst is K2Ni2Sb8O23. The invention further discloses the preparation method of the photocatalyst. The photocatalyst disclosed by the invention has the advantages of wide spectral response range, high light conversion efficiency, good stability and the like; the photocatalyst plays a role in decomposing harmful chemical substances and organic biomass and sterilizing under the irradiation of visible light; in addition, the preparation method is simple, is low in synthesis temperature and low in cost and is applicable to industrial production and application.

The invention discloses a wideband and efficient visible light responded photocatalyst Co3ZnFeSbO8 and the preparation method thereof. The chemical constitution formula of the photocatalyst is Co3ZnFeSbO8. The invention further discloses a preparation method of the aforementioned material. The obtained photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability, and the like. Under the irradiation of visible light, the photocatalyst has effects of resolving harmful chemical substances, organic biomass, and sterilization; additionally, the preparation method is simple, the synthesizing temperature is low, and the photocatalyst is applicable to industrial production and application.

The invention discloses a visible light responsive photocatalyst Li3ZnBi5O10 and a preparation method thereof. The chemical composition formula of the photocatalyst is Li3ZnBi5O10. The preparation method includes: (1) weighing and burdening 99.9% analytically pure chemical raw materials Li2CO3, ZnO and Bi2O3 according to the chemical formula Li3ZnBi5O10; (2) mixing the well proportioned raw materials of step (1), putting the mixture into a ball milling tank, adding zirconia balls and anhydrous ethanol, conducting ball-milling for 8h, carrying out mixing levigating, taking the mixture out, performing drying, and conducting sieving by a 200-mesh sieve; and (3) presintering the evenly mixed powder of step (2) at 700-750DEG C, and conducting heat preservation for 6h, performing natural cooling to room temperature, then decreasing the particle diameter to less than 2 micrometers by ball mill crushing, thus obtaining the Li3ZnBi5O10 powder. The preparation method provided by the invention is simple and low in cost, the prepared photocatalyst has excellent catalytic performance, can decompose harmful chemical substances under visible light irradiation, and also has good stability, thus having good application prospect.

The invention discloses visible light responding photocatalyst SrCu3Ge4O12 and a preparation method thereof. The chemical composition of the photocatalyst is SrCu3Ge4O12. The invention also discloses the preparation method of the material. The photocatalyst obtained by the method has wide spectral response range, high light conversion efficiency and good stability and other advantages, has the effects of decomposition of harmful chemicals and organic biomass and antiseptic effect under visible light irradiation, also has the advantages of simple preparation method, low synthesis temperature, low cost, and is suitable for industrial production and application.

The invention provides a preparation method and an application of a visible light and Fenton composite catalyst and belongs to the technical field of photocatalyst preparation. The method comprises the following steps: soluble ferrous salt and soluble lithium salt are weighed in a mole ratio and added to deionized water; tungstate M2WO4.2H2O is weighed and added to deionized water; the prepared solutions are uniformly mixed, the mole ratio of ferrous ions, lithium ions and tungsten ions is enabled to be 2:2:1, then a sodium hydroxide solution is added to enable the solution to be alkaline, andthe mixed solution is transferred into a hydrothermal reactor for a reaction; centrifugal separation is performed after the reaction, precipitates obtained through centrifugation are washed and dried, and Li2Fe2WO7 powder is obtained; the Li2Fe2WO7 powder and nano-SnO2 are uniformly mixed, the mixture is subjected to ball milling and roasting, and the composite catalyst SnO2 / Li2Fe2WO7 powder is obtained. The composite catalyst prepared with the method has better visible-light catalytic activity and high pollutant degradation rate and can be used for treating organic wastewater.

The invention discloses a broadband efficient photocatalyst Li2ZnSnO4 with visible light response and a preparation method thereof. The chemical formula of the photocatalyst is Li2ZnSnO4. The invention further discloses a preparation method of the photocatalyst. The obtained photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability and the like, and has the effect of decomposing harmful chemical substances and organic biomass and achieving sterilization under visible light irradiation; in addition, the preparation method is simple, low in synthesis temperature and cost and suitable for industrial production and application.

The invention discloses a broadband efficient visible light photocatalyst LiB3Sn2O9 and a method for preparing the same. A chemical composition formula of the visible light response photocatalyst is LiB3Sn2O9. The visible light response photocatalyst and the method have the advantages that the visible light response photocatalyst is wide in spectral response range, high in light conversion efficiency and good in stability, and harmful chemical substance and organic biomass decomposition and sterilization effects can be realized by the visible light response photocatalyst under visible light illumination conditions; the method is simple, and is low in synthesis temperature and cost and suitable for industrial production and application, and the like.

The invention discloses a broadband high-efficiency visible-light-responsive photocatalyst SrLi3FeV8O24 and a preparation method thereof. The chemical composition formula of the photocatalyst is SrLi3FeV8O24. The invention also discloses the preparation method of the above material. The photocatalyst provided by the invention has the advantages of wide spectral response range, high light conversion efficiency, good stability, and the like. Under visible light irradiation, the photocatalyst has the functions of decomposing harmful chemicals and organic biomass, and sterilizing. The preparation method is simple; synthesis temperature is low; and cost is low. The method is suitable for industrialized production and application.

The invention discloses a broadband efficient visible-light response photocatalyst Cu3Bi2Ge3O12 and a preparation method thereof. The chemical composition formula of the photocatalyst is Cu3Bi2Ge3O12. The invention further discloses the preparation method of the photocatalyst. The obtained photocatalyst has the advantages of being wide in spectral response range, high in light conversion efficiency, good in stability and the like. The effects of decomposing harmful chemical substances and organic biomass and killing bacteria are achieved under irradiation of visible light. In addition, the preparation method is simple, synthesis temperature is low, cost is low, and the photocatalyst is suitable for industrial production and application.

The invention discloses a wideband and efficient visible light responded photocatalyst Li2La3NdSb2O12 and the preparation method thereof. The chemical constitution formula of the photocatalyst is Li2La3NdSb2O12. The invention further discloses a preparation method of the aforementioned material. The obtained photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability, and the like. Under the irradiation of visible light, the photocatalyst has effects of resolving harmful chemical substances, organic biomass, and sterilization; additionally, the preparation method is simple, the synthesizing temperature is low, and the photocatalyst is applicable to industrial production and application.

The invention discloses a visible-light-responding photocatalyst SrCu2Ge2O7 with broadband and high efficiency and a preparation method of the visible-light-responding photocatalyst SrCu2Ge2O7. A chemical composition formula of the photocatalyst is SrCu2Ge2O7. The invention further discloses the preparation method of the material. The photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability and the like; the photocatalyst has functions of decomposing harmful chemical substances and organic biomass and killing bacteria under the irradiation of visible light; besides, the preparation method is simple, the synthesis temperature is low, the cost is low, and the photocatalyst and the preparation method are suitable for industrial production and application.

The invention discloses a wideband and efficient visible light responded photocatalyst Co4GaSbO8 and the preparation method thereof. The chemical constitution formula of the photocatalyst is Co4GaSbO8. The invention further discloses a preparation method of the aforementioned material. The obtained photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability, and the like. Under the irradiation of visible light, the photocatalyst has effects of resolving harmful chemical substances, organic biomass, and sterilization; additionally, the preparation method is simple, the synthesizing temperature is low, and the photocatalyst is applicable to industrial production and application.

The invention discloses a wide-frequency and efficient photocatalyst LiCu2Nb7O20 with visible light response and a preparation method thereof. The chemical composition formula of the photocatalyst is LiCu2Nb7O20. The invention further discloses a preparation method of the material. The photocatalyst obtained by the preparation method disclosed by the invention has the advantages of wide spectral response range, high photoconversion efficiency, good stability and the like. The photocatalyst has the effects of decomposing harmful chemical substances and organic biomass, and sterilizing under the irradiation of visible light; and in addition, the preparation method is simple, the synthesis temperature is low, the cost is low, and the preparation method is suitable for industrial production and application.

The invention discloses broadband efficient visible-light-responsive photo-catalyst LiF3Si2O6 and a preparation method thereof. The photo-catalyst has a chemical composition of LiFeSi2O6. The invention also discloses the preparation method of the above material. The photo-catalyst according to the invention has the advantages of wide range of spectral response, high photo-conversion efficiency, good stability and the like and can decompose harmful chemicals and organic biomass and kill bacteria when exposed to visible light; in addition, the preparation method is simple, synthetic temperature is low, the cost is low, and the preparation method is suitable for industrial production and application.

The invention discloses a broadband efficient visible light responding photocatalyst SrLi3SmV8O24 and a preparation method thereof. The chemical formula of the photocatalyst is SrLi3SmV8O24. The invention also discloses the preparation method of the broadband efficient visible light responding photocatalyst SrLi3SmV8O24. The obtained photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability and the like, and has the functions of resolving harmful chemical substances and organic biomass and sterilizing under irradiation of visible light. In addition, the preparation method is simple, low in synthesis temperature and cost, and suitable for industrial production and application.

The invention discloses a broadband high-efficient visible-light responding photocatalyst Li4Sm2NiTiO8 and a preparation method thereof. The chemical formula of the photocatalyst is Li4Sm2NiTiO8. The invention also discloses a preparation method for the broadband high-efficient visible-light responding photocatalyst Li4Sm2NiTiO8. The photocatalyst prepared according to the preparation method provided by the invention has the advantages of wide spectral response range, high light conversion efficiency and high stability. Under the irradiation of visible light, the photocatalyst has the function of decomposing harmful chemical substances and organic biomass and the sterilization function. Besides, the preparation method is simple, the compounding temperature is low, the cost is low and the preparation method is suitable for industrial production and application.

The invention discloses a wideband efficient visible light responsive photocatalyst LiFeSn2O6 and a preparing method thereof. The chemical constitution formula of the photocatalyst is LiFeSnO6. The invention further discloses the preparing method of the material. The photocatalyst has the advantages of being wide in spectral response range, high in light conversion efficiency, good in stability and the like, and has the effects of decomposing harmful chemical substances and organic biomass and killing bacteria under illumination of visible light; in addition, the preparing method is simple, low in synthesizing temperature, low in cost and suitable for industrial production and application.

The invention discloses a wideband and efficient visible light responded photocatalyst Li2Cu4O5 and the preparation method thereof. The chemical constitution formula of the photocatalyst is Li2Cu4O5. The invention further discloses a preparation method of the aforementioned material. The obtained photocatalyst has the advantages of wide spectral response range, high light conversion efficiency, good stability, and the like. Under the irradiation of visible light, the photocatalyst has effects of resolving harmful chemical substances, organic biomass, and sterilization; additionally, the preparation method is simple, the synthesizing temperature is low, and the photocatalyst is applicable to industrial production and application.

The invention discloses a wide-frequency efficient visible-light responsive photocatalyst CaFe2Ge2O8 and a preparation method thereof. A chemical constitution formula of the photocatalyst is CaFe2Ge2O8. The invention also discloses the preparation method of the material. The photocatalyst obtained by the preparation method has the advantages of wide spectral response range, high light conversion efficiency and good stability, has the functions of decomposing harmful chemical substances, organic biomass and sterilizing in the irradiation of visible light, and the preparation method is simple, low in synthesis temperature and low in cost and suitable for industrial production and application.