Preparation method of heterogeneous photo-Fenton catalyzing material

A catalytic material and heterogeneous technology, applied in the direction of heterogeneous catalyst chemical elements, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of active catalytic nanoparticles easy to agglomerate, etc., to improve the effect and overcome the pH The effect of small action range and improved electron transfer ability

Inactive Publication Date: 2018-06-05
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a heterogeneous photo-Fenton catalytic material. The catalytic material prepared by this method can not only overcome the problems of small pH range, poor reusability, and easy to cause secondary pollution, but also solve the problem of active Defects of Catalytic Nanoparticles Easy to Agglomerate

Method used

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  • Preparation method of heterogeneous photo-Fenton catalyzing material

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Embodiment 1

[0077] Embodiment 1, the present embodiment adopts FeCl 3 ·6H 2 O, CuCl 2 2H 2 O, graphene oxide and butyl titanate (TBOT), prepare a graphene oxide-supported iron-copper double metal oxide with a loading rate of 10wt% (n(Fe):n(Cu)=4:1) and use titanium dioxide as the Hollow core-shell structure heterogeneous photo-Fenton catalyst material with shell.

[0078] The first is the preparation of graphene oxide: take 1g graphite powder and 1g NaNO 3 Put it into a 500mL three-necked flask, put it in an ice bath, and add 25mL of concentrated H 2 SO 4 . Second, slowly add 3g KMnO 4 The reaction was carried out for 2h. Afterwards, the three-necked flask was heated to 35° C. and kept for 1 h. Then slowly add 80 mL of deionized water to the reaction liquid, control the temperature of the bath liquid at about 90° C., and react for 15 min. Next, the liquid in the three-necked flask was poured into a 1000mL flask, 200mL of deionized water was added thereto, and H 2 o 2 (30wt%, >...

Embodiment 2

[0084] Embodiment 2, the present embodiment adopts FeCl 3 ·6H 2 o 2 , CuCl 2 2H 2 o 2 , graphene oxide and butyl titanate (TBOT), prepare a graphene oxide-supported iron-copper bimetallic oxide with a loading rate of 20wt% (n(Fe):n(Cu)=4:1) and use titanium dioxide as the shell Hollow core-shell structured heterogeneous photo-Fenton catalyst materials.

[0085] The first is the preparation of graphene oxide: take 1g graphite powder and 1g NaNO 3 Put it into a 500mL three-necked flask, put it in an ice bath, and add 25mL of concentrated H 2 SO 4 . Second, slowly add 3g KMnO 4 The reaction was carried out for 2h. Afterwards, the three-necked flask was heated to 35° C. and kept for 1 h. Then slowly add 80 mL of deionized water to the reaction liquid, control the temperature of the bath liquid at about 90° C., and react for 15 min. Next, the liquid in the three-necked flask was poured into a 1000mL flask, 200mL of deionized water was added thereto, and H 2 o 2 (30wt%...

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Abstract

The invention discloses a preparation method of a heterogeneous photo-Fenton catalyzing material. The method comprises the following steps: preparing graphene oxide for later use; loading Fe3O4 and CuO together to the prepared graphene oxide; and preparing a hollow core-shell structure based on the loaded graphene oxide, thus obtaining the core-shell structure heterogeneous photo-Fenton catalyzingmaterial Fe3O4-CuO-GO@void@TiO2NPs. With the adoption of the catalyzing material prepared through the material, the problems of small pH acting range, low recycling performance, and easy causing of secondary pollution can be overcome; and moreover, the defects that activated catalyzing nanoparticles are easily agglomerated can be solved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a preparation method of a heterogeneous photo-Fenton catalytic material. Background technique [0002] With the rapid development of industry, the discharge of toxic and refractory industrial wastewater has increased sharply, and these wastewaters have the characteristics of high concentration, stable structure, complex composition, high COD, chroma, and salinity, poor biodegradability, and toxicity. Due to the toxicity to microorganisms, the biological treatment technology is limited, so advanced oxidation technology (Advanced Oxidation Technology) [0003] Oxidation Technologies, referred to as AOT) has increasingly become an important wastewater treatment technology. Advanced oxidation technology uses oxidants, electricity, light, and catalysts to generate highly active hydroxyl radicals (OH) in the reaction, so that refractory organic pollutants can be ring-opened, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745C02F1/72C02F1/30
CPCB01J23/002B01J23/745B01J35/0033B01J35/0086B01J2523/00C02F1/30C02F1/722C02F1/725C02F2305/026B01J2523/17B01J2523/47B01J2523/842
Inventor 王春荣韦艳红陈晓雅姜龙欣刘丹王建兵何绪文
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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