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Visible light-assisted Fenton promoter as well as preparation method and application thereof

A co-catalyst and visible light technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc.

Pending Publication Date: 2021-09-10
安徽理工大学环境友好材料与职业健康研究院(芜湖) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After searching, there is no report on the preparation and application of the Fenton cocatalyst containing the solid solution of Zn, Cd, S

Method used

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  • Visible light-assisted Fenton promoter as well as preparation method and application thereof
  • Visible light-assisted Fenton promoter as well as preparation method and application thereof
  • Visible light-assisted Fenton promoter as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of a visible light-assisted single Fenton co-catalyst is carried out according to the following steps:

[0035] 7.5mmol Zn(Ac) 2 • 2H 2 O was dissolved in 20ml of ethylenediamine solution to obtain solution A, and 30mmol of TAA was dissolved in 10ml of ethylenediamine solvent to form solution B, and solution B was added dropwise to solution A under magnetic stirring and stirred for 2h to obtain a mixed solution, The mixed solution was transferred into the autoclave, and carried out 180 o C, 24h solvent heat treatment; then wash with ethanol and deionized water, after washing, at 60 o Vacuum drying at C temperature for 12h, take out the dried product and grind to obtain Fenton cocatalyst. Its XRD pattern is as figure 1 shown in ZnS-1.

Embodiment 2

[0037] A preparation method of a visible light-assisted Fenton cocatalyst is carried out according to the following steps:

[0038] 2.25mmol CdCl 2 , 5.25mmol Zn(Ac) 2 • 2H 2 O was dissolved in 20ml of ethylenediamine solution to obtain solution A, and 30mmol of TAA was also dissolved in 10ml of ethylenediamine solvent to form solution B. Under magnetic stirring, solution B was added dropwise to solution A and stirred for 2h to obtain a mixed solution , transfer the mixed solution into the autoclave, carry out 180 o C, 24h of solvent heat treatment to obtain the mixture; wash the mixture with ethanol and deionized water, after washing, at 60 o Vacuum drying at C temperature for 12h, take out the dried product and grind to obtain Fenton cocatalyst. Its XRD pattern is as figure 1 shown in ZCS-2.

Embodiment 3

[0040] A preparation method of a visible light-assisted Fenton cocatalyst is carried out according to the following steps:

[0041] 3.75mmol CdCl 2 , 3.75mmol Zn(Ac) 2 • 2H 2 O was dissolved in 20ml of ethylenediamine solution to obtain solution A, and 30mmol of TAA was also dissolved in 10ml of ethylenediamine solvent to form solution B. Under magnetic stirring, solution B was added dropwise to solution A and stirred for 2h to obtain a mixed solution , transfer the mixed solution into the autoclave, carry out 180 o After C, 24h of solvent heat treatment, the mixture was obtained; the mixture was washed with ethanol and deionized water, and the mixture was washed at 60 o Vacuum drying at C temperature for 12h, take out the dried product and grind to obtain Fenton cocatalyst. Its XRD pattern is as figure 1 shown in ZCS-3.

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Abstract

The invention discloses a visible light-assisted Fenton promoter as well as a preparation method and an application thereof. The Fenton promoter is composed of a cadmium-zinc sulfide solid solution. Based on a solid solution cocatalyst containing three elements of cadmium, zinc and sulfur, the catalyst is prepared from zinc acetate, cadmium chloride and thioacetamide through a simple solvothermal method. The experiments prove that the co-catalyst has multiple excellent characteristics of good morphology, excellent photo-Fenton co-catalysis performance, recyclability and the like, is expected to play an important role in sewage treatment, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of Fenton cocatalysts, in particular to a visible light-assisted Fenton cocatalyst and a preparation method and application thereof. Background technique [0002] In recent decades, the discharge of wastewater from different industries such as textiles, printing, plastics, food, and cosmetics has gradually increased. At present, the technologies for degrading wastewater mainly include: photocatalysis, biodegradation, adsorption, etc., but they are often limited by low light utilization, high cost and low efficiency. [0003] Fenton catalysis has attracted much attention due to its high catalytic efficiency, mild catalytic conditions, and low equipment requirements. However, in many years of practice, the traditional Fenton catalysis technology has also exposed shortcomings such as low utilization of hydrogen peroxide and ferrous iron, production of a large amount of iron sludge that is difficult to handle, and incomp...

Claims

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Application Information

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IPC IPC(8): B01J27/04B01J37/10C02F1/30C02F1/72C02F101/34C02F101/36C02F101/38
CPCB01J27/04B01J37/10C02F1/30C02F1/722C02F2305/10C02F2305/026C02F2101/308C02F2101/34C02F2101/36C02F2101/38B01J35/39
Inventor 潘育松严海线廖晓波潘成岭尹成杰
Owner 安徽理工大学环境友好材料与职业健康研究院(芜湖)
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