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Preparation method of zinc stannate nanocube/graphene aerogel sunlight catalyst for degrading ciprofloxacin hydrochloride wastewater

A technology of ciprofloxacin hydrochloride and graphene aerogel, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of insufficient photocatalytic activity. Satisfaction, poor adsorption performance, etc., to achieve the effects of excellent chemical stability, high degradation efficiency, and high catalytic activity

Inactive Publication Date: 2019-04-26
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure ZnSnO 3 Due to factors such as poor adsorption performance and too fast recombination rate of photogenerated charges, its photocatalytic activity is not satisfactory.

Method used

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  • Preparation method of zinc stannate nanocube/graphene aerogel sunlight catalyst for degrading ciprofloxacin hydrochloride wastewater
  • Preparation method of zinc stannate nanocube/graphene aerogel sunlight catalyst for degrading ciprofloxacin hydrochloride wastewater

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step S1: Weigh 2.1036g SnCl with an analytical balance 4 ·5H 2 O in a beaker, add 30mL of ethanol, stir on a stirrer to make it completely dissolved to obtain solution A;

[0027] Step S2: Weigh 0.8178g ZnCl with an analytical balance 2 In the beaker, add 60mL of water, stir on the stirrer to completely dissolve to obtain solution B;

[0028] Step S3: After mixing solution A and solution B, place it on a magnetic stirrer and adjust the pH of the mixed system to 11.1 while stirring with a sodium hydroxide solution with a molar concentration of 2 mol / L, then filter the mixed solution, wash it with water, and dry it Get nano-cube zinc stannate overnight;

[0029] Step S4: using the improved Hummers' method to prepare graphene oxide with graphite powder as raw material, dispersing 0.6g graphene oxide in 60mL acetic acid aqueous solution, and obtaining a graphene oxide dispersion solution C with a concentration of 10 mg / mL after ultrasonication for 3 hours;

[0030] Step...

Embodiment 2

[0033] Step S1: Weigh 2.1036g SnCl with an analytical balance 4 ·5H 2 O in a beaker, add 30mL of ethanol, stir on a stirrer to make it completely dissolved to obtain solution A;

[0034] Step S2: Weigh 0.8178g ZnCl with an analytical balance 2 In the beaker, add 60mL of water, stir on the stirrer to completely dissolve to obtain solution B;

[0035] Step S3: After mixing solution A and solution B, place it on a magnetic stirrer and adjust the pH of the mixed system to 11.1 while stirring with a sodium hydroxide solution with a molar concentration of 2 mol / L, then filter the mixed solution, wash it with water, and dry it Get nano-cube zinc stannate overnight;

[0036] Step S4: using the improved Hummers' method to prepare graphene oxide with graphite powder as raw material, dispersing 0.6g graphene oxide in 60mL acetic acid aqueous solution, and obtaining a graphene oxide dispersion solution C with a concentration of 10 mg / mL after ultrasonication for 3 hours;

[0037] Step S...

Embodiment 3

[0040] Step S1: Weigh 2.1036g SnCl with an analytical balance 4 ·5H 2 O in a beaker, add 30mL of ethanol, stir on a stirrer to make it completely dissolved to obtain solution A;

[0041] Step S2: Weigh 0.8178g ZnCl with an analytical balance 2 In the beaker, add 60mL of water, stir on the stirrer to completely dissolve to obtain solution B;

[0042] Step S3: After mixing solution A and solution B, place it on a magnetic stirrer and adjust the pH of the mixed system to 11.1 while stirring with a sodium hydroxide solution with a molar concentration of 2 mol / L, then filter the mixed solution, wash it with water, and dry it Get nano-cube zinc stannate overnight;

[0043] Step S4: using the improved Hummers' method to prepare graphene oxide with graphite powder as raw material, dispersing 0.6g graphene oxide in 60mL acetic acid aqueous solution, and obtaining a graphene oxide dispersion solution C with a concentration of 10 mg / mL after ultrasonication for 3 hours;

[0044] Step...

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Abstract

The invention discloses a preparation method of a zinc stannate nanocube / graphene aerogel sunlight catalyst for degrading ciprofloxacin hydrochloride wastewater, and belongs to the technical field ofsynthesis of natural sunlight response photocatalytic materials. Graphene is used as a base material to be compounded with the nanocube zinc stannate to obtain a high-activity zinc stannate / graphene aerogel photocatalysis material, the zinc stannate nanocube / graphene aerogel sunlight catalyst has the characteristic of high degradation efficiency on the antibiotic ciprofloxacin hydrochloride undernatural sunlight irradiation, and the preparation method is a novel method for obtaining the high-activity photocatalyst through a simple preparation process.

Description

technical field [0001] The invention belongs to the technical field of synthesis of natural sunlight-responsive photocatalytic materials, and in particular relates to a preparation method of a zinc stannate nanocube / graphene airgel solar photocatalyst for degrading ciprofloxacin hydrochloride wastewater. Background technique [0002] Aiming at the pollution of antibiotics in the water environment, finding an effective method to deal with antibiotic pollutants in water is very important to the aquatic ecological environment and human health. Because antibiotics themselves have certain biological toxicity to microorganisms, and the polarity of their molecules makes them easily soluble in water, it is difficult for traditional sewage treatment technologies to effectively remove antibiotic pollutants in sewage. Previous studies have found that, compared with traditional treatment methods, advanced oxidation methods can effectively degrade antibiotics in water. Although these me...

Claims

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Application Information

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IPC IPC(8): B01J23/14C02F1/30C02F1/72C02F101/38
CPCC02F1/30C02F1/725B01J23/14C02F2101/38C02F2305/10B01J35/23B01J35/39
Inventor 董淑英夏隆基崔龄芳李凤姿王钰垚欧懿文张迪孙剑辉
Owner HENAN NORMAL UNIV
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