Method for treating Congo red and methyl violet organic pollutant

A technology of organic pollutants and treatment methods, applied in the field of organic pollutants treatment, can solve the problems of increasing synthesis costs, consuming energy, reducing reaction efficiency, etc., and achieve the effects of low product cost, enhanced absorption capacity, and simple synthesis methods

Inactive Publication Date: 2019-08-27
HENAN UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in the first scheme, an initiation step needs to be added before visible light catalysis, which not only consumes additional energy, but also may destroy the originally well-designed polyacid structure, resulting in "isopoly blue" or "heteropoly blue" "Compounds, the introduction of additional "photosensitizers" in the second scheme increases the synthesis cost and reduces the reaction efficiency

Method used

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  • Method for treating Congo red and methyl violet organic pollutant
  • Method for treating Congo red and methyl violet organic pollutant
  • Method for treating Congo red and methyl violet organic pollutant

Examples

Experimental program
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Embodiment

[0033] 1.1. Preparation of organic dye photocatalyst

[0034] Add 0.5g Na to the 15mL hydrothermal kettle 2 WO 4 ·H 2 O, 0.05g Co(Ac) 2 4H 2 O, 0.2g Na 2 HPO 4 , 150uL ethylenediamine and 4mL deionized water, stirred with a stirrer at room temperature for 10 minutes, continued to add 450uL phosphoric acid and stirred at room temperature for 10 minutes, then put it into a steel reactor jacket and put it into an electric heating oven. The oven was heated to 180°C with the maximum power and kept at 180°C for 3 days, and then the oven was naturally cooled to room temperature to obtain a purple-black solid, crystalline compound 1 (yield: 0.12 g). Na 2 WO 4 ·H 2 O, Co(Ac) 2 4H 2 O, Na 2 HPO 4 , Ethylenediamine (en) is analytically pure, phosphoric acid (H 3 PO 4 ) mass fraction 85%. Compound (H 8 (H 2 en) 6 [Co(H 2 O)Co(P 4 Mo V 6 o 31 ) 2 ]·6H 2 O) is based on (P 4 Mo V 6 o 31 ) 12- (abbreviated as P 4 Mo V 6 ) is the two-dimensional layered struct...

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Abstract

The invention provides a method for catalytic degradation on organic pollutants of methyl violet and Congo red in water by using visible light. The method is low in raw material cost, good in affinityupon water-soluble pollutants Congo red and methyl violet, high in removal efficiency, good in stability and free of secondary environment pollution. According to the method, an organic dye photocatalyst H8(H2en)6[Co(H2O)Co(P4MoV6O31)2]*6H2O is firstly prepared, and the prepared catalyst is directly applied to visible light catalytic degradation on Congo red and methyl violet.

Description

technical field [0001] The invention belongs to the field of processing organic pollutants, and in particular relates to a method for processing Congo red and methyl violet organic pollutants. Background technique [0002] Organic dyes Congo red and methyl violet are commonly used dyeing agents in dye factories and printing and dyeing industries. Industrial wastewater containing such dyes has large chroma, large discharge volume, high toxicity, and poor biodegradability, which has always been a problem in wastewater treatment. The direct discharge of industrial wastewater containing methyl violet and Congo red into the natural environment will bring serious pollution to the environment on which human beings live, thus endangering human health. Therefore, removing organic dyes methyl violet and Congo red in industrial wastewater is an effective way to treat printing and dyeing wastewater and purify the environment [0003] Currently, TiO 2 And its metal dopant as a semicond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30B01J31/22C02F101/30
CPCB01J31/2239B01J2531/845C02F1/30C02F2101/308C02F2305/10
Inventor 张超王冠张红端纪含笑
Owner HENAN UNIVERSITY
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