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Activated carbon supported nanometer iron oxide adsorbent and preparation method thereof

A technology of nano-iron oxide and activated carbon, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve the problems of weak adsorption capacity of antibiotics, and achieve large-scale industrial production, good adsorption performance, and simplified The effect of the adsorption process

Inactive Publication Date: 2018-05-04
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

The adsorbent endows activated carbon with the new characteristics of simultaneously removing heavy metal anions and cations (including Cr(VI), Cd(II)) and antibiotics (including metronidazole) by loading nano-iron oxide, effectively solving the problem of existing activated carbon for heavy metal anions and cations. (including Cr(VI), Cd(II)) and antibiotics (including metronidazole) weak adsorption problems

Method used

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  • Activated carbon supported nanometer iron oxide adsorbent and preparation method thereof
  • Activated carbon supported nanometer iron oxide adsorbent and preparation method thereof
  • Activated carbon supported nanometer iron oxide adsorbent and preparation method thereof

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Embodiment 1

[0037] Activated carbon-loaded nano-iron oxide adsorbent (nFe 2 o 3 @AC) preparation, including the following steps:

[0038] (1) Select 10 g of 100-200 mesh powdered activated carbon and add it to a 100 mL beaker containing 50 mL of 0.1 mol / L hydrochloric acid, filter it after soaking for 24 h, and wash it with deionized water three times to remove excess acid and impurities , and dried in an oven at 60°C after suction filtration to obtain the treated activated carbon for subsequent use;

[0039] (2) Prepare 0.5 mol / L FeCl 3 Solution, weigh 5 g of treated activated carbon and place in 200 mL of FeCl 3 In the solution, react for 12 h at 30°C under magnetic stirring conditions to obtain a mixture of activated carbon and Fe(III); prepare 200 mL of 1.5 mol / L NaOH solution, and add it dropwise to activated carbon and Fe(III) at a speed of 0.5 mL / min while stirring. Alkali adjustment was carried out in the mixed solution of Fe(III). After the alkali adjustment, the solution was...

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Abstract

The invention discloses an activated carbon supported nanometer iron oxide adsorbent as well as a preparation method and application thereof. The preparation method comprises the following steps: by taking activated carbon as a carrier, performing simple dipping, alkali blending and calcining, and successfully supporting nanometer iron oxide onto the activated carbon surface and pore channels, thereby obtaining the activated carbon supported nanometer iron oxide adsorbent. The activated carbon supported nanometer iron oxide adsorbent disclosed by the invention is capable of synchronously and effectively removing heavy metal anions, heavy metal cations and antibiotics in drinking water, and has excellent adsorption performance for synchronously remvoving Cr(VI), Cd(II) and antibiotics, so that the efficiency of the activated carbon in the drinking water treatment field is improved, the drinking water adsorption and treatment process is simplified, and the safety of the drinking water isensured.

Description

technical field [0001] The invention relates to the technical field of adsorbent preparation, in particular to an activated carbon-carried nano iron oxide adsorbent and a preparation method thereof. Background technique [0002] With the rapid development of industry and agriculture, especially chemical industry, mining, smelting, electroplating, tanning, breeding and other industries and the widespread use of antibiotics, the pollution of heavy metals and antibiotics in natural water is becoming more and more serious. Heavy metal ions produce toxic effects as long as they are in trace concentrations, and have bioaccumulation and transfer effects. Antibiotics can not only induce bacterial resistance in the ecological environment, but also pose a potential threat to aquatic organisms and human health. Therefore, removal of drinking water Heavy metals and antibiotics in water have become a new trend in the development of drinking water treatment. At present, the purification ...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/20C02F101/30
CPCB01J20/06B01J20/20C02F1/283C02F2101/20C02F2101/30
Inventor 吴锦华李冰谭雪云李平
Owner SOUTH CHINA UNIV OF TECH
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