Method for catalyzing hydrogen peroxide to oxidize and degrade phenol pollutants in wastewater by using Cu(II)-Schiff base complex

A technology of oxidative degradation and hydrogen peroxide, applied in the direction of water pollutants, organic compounds/hydrides/coordination complex catalysts, oxidized water/sewage treatment, etc., can solve the problems of low catalytic efficiency and high reaction temperature, etc. Achieve the effect of good catalytic properties and good potential application value

Inactive Publication Date: 2019-08-23
HENAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These studies still have problems such as low catalytic efficiency, high reaction temperature or visible light excitation, etc. Exploring and synthesizing Schiff base metal complex catalysts with high catalytic efficiency in aqueous solution is the focus of research in this field

Method used

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  • Method for catalyzing hydrogen peroxide to oxidize and degrade phenol pollutants in wastewater by using Cu(II)-Schiff base complex
  • Method for catalyzing hydrogen peroxide to oxidize and degrade phenol pollutants in wastewater by using Cu(II)-Schiff base complex
  • Method for catalyzing hydrogen peroxide to oxidize and degrade phenol pollutants in wastewater by using Cu(II)-Schiff base complex

Examples

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Embodiment

[0022] 1 Experimental materials and methods (Materials and Methods)

[0023] 1.1 Reagents and instruments

[0024] 3,5-dibromosalicylaldehyde and ethanolamine were purchased from J&K Company (Bailingwei, Shanghai), phenol (Phenol), 4-chlorophenol (4-CP), 2,4-dichlorophenol (2,4-DCP) and 2,6-dichlorophenol (2,6-DCP) were purchased from Acros Organics, 2-chlorophenol (2-CP) and 2,4,6-trichlorophenol (2,4,6-TCP) were purchased from TCI company, pentachlorophenol (PCP) was purchased from Sigma company (Sigma, Shanghai), absolute ethanol, copper chloride dihydrate, 30wt% H 2 o 2 All are of analytical grade (AR), and the pH of the solution is controlled by Tris-HCl buffer.

[0025] SGW X-4 Microscopic Melting Point Apparatus (Shanghai Shenguang Company); HJ-3 Digital Display Constant Temperature Magnetic Stirrer (Jiangsu Jintan Jerrell Company); CHN-O-Rapid Elemental Analyzer (Germany Heraeus Company); Cary50 Ultraviolet spectrophotometer (Varian company, USA); NEXUS 870 infrare...

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Abstract

The invention discloses a method for catalyzing hydrogen peroxide to oxidize and degrade phenol pollutants in wastewater by using a Cu(II)-Schiff base complex. The Cu(II)-Schiff base complex is addedinto organic wastewater containing phenolic pollutants and is used for oxidative degradation of the phenolic compounds in the wastewater under a near neutral and water-phase condition. The Cu(II)-Schiff base complex prepared by the preparation method shows good catalytic properties, can be used to realize oxidative degradation of the phenolic compounds under a near neutral and water-phase condition, solves the problem that a Fenton reaction needs to be carried out under an acidic condition, and has a good potential application value in treatment of wastewater containing phenols and the like.

Description

technical field [0001] The invention belongs to the technical field of catalytic oxidation degradation of organic pollutants by Cu(II)-Schiff base complexes, in particular to a method for Cu(II)-Schiff base complexes to catalyze hydrogen peroxide oxidation degradation of phenolic pollutants in wastewater . Background technique [0002] Phenolic compounds are common components in wastewater. This type of wastewater is not only highly toxic but also has potential toxicity of teratogenic, carcinogenic and mutagenic. Therefore, its effective removal is a matter of economic interest and great practical significance. Because the level of phenolic compounds in wastewater often exceeds the limit that can be treated by biological methods, people try to study the use of various chemical methods to treat phenolic compounds in these wastewaters, such as wet air oxidation (WAO), wet catalytic oxidation ( WCO), photocatalytic oxidation, electrochemical treatment, supercritical oxidation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C07F1/08B01J31/22C02F101/34
CPCB01J31/1805B01J2531/16C02F1/722C02F1/725C02F2101/345C07F1/08
Inventor 彭建彪张超男张耀宗贺冰冰顾梦瑶曹治国刘海津
Owner HENAN NORMAL UNIV
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