Graphene oxide-cerium oxide-tricobalt tetraoxide composite material, synthesis method and application thereof

A technology of tricobalt tetroxide and composite materials, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve the problem of low catalytic activity and achieve simple synthesis process and excellent performance Stable, high-performance results

Pending Publication Date: 2020-10-27
MINNAN NORMAL UNIV
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  • Abstract
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Problems solved by technology

[0021] The invention provides a graphene oxide-cerium oxide-cobalt tetroxide composite material, a synthesis method and its application to solve practical technical problems such as low catalytic activity

Method used

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  • Graphene oxide-cerium oxide-tricobalt tetraoxide composite material, synthesis method and application thereof
  • Graphene oxide-cerium oxide-tricobalt tetraoxide composite material, synthesis method and application thereof
  • Graphene oxide-cerium oxide-tricobalt tetraoxide composite material, synthesis method and application thereof

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Experimental program
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Embodiment Construction

[0061]1. Experimental part

[0062] 1. Main raw materials and instruments

[0063] The test materials provided by the implementation of the present invention are: graphene oxide (GO) (AA, Suzhou Tanfeng Science and Technology Co., Ltd.), cerium oxide (CeO 2 ) (AR, Sinopharm Chemical Reagent Co., Ltd.), sodium hydroxide (NaOH) (AR, Guangdong. Shantou Xilong Chemical Factory), hydrochloric acid (HCl) (AR, Xilong Science Co., Ltd.), nitric acid (HNO 3 ) (AR, Xilong Science Co., Ltd.), ethanol (C 2 h 5 OH) (AR, Xilong Science Co., Ltd.), hydrogen peroxide (H 2 o 2 ) (AR, Xilong Science Co., Ltd.), cobalt chloride hexahydrate (CoCl 2 ·6H 2 O) (AR, Xilong Science Co., Ltd.), urea (H 2 NCONH 2 ) (AR, Xilong Science Co., Ltd.), Methanol (CH 3 OH) (AR, Xilong Science Co., Ltd.), potassium hydrogen persulfate (KHSO 5 )(AR, Shanghai Aladdin Biochemical Technology Co., Ltd.), methylene blue (C 16 h 18 ClN 3 S) (AR, Xilong Science Co., Ltd.).

[0064] The instrument provided ...

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Abstract

The invention discloses a graphene oxide-cerium oxide-tricobalt tetraoxide composite material, a synthesis method and application thereof. According to the invention, a graphene oxide-cerium oxide-tricobalt tetraoxide composite material catalyst is prepared by combining a direct precipitation method and a solvothermal method, and the catalyst is characterized by Fourier transform infrared spectroscopy, a scanning electron microscope and an X-ray diffraction spectrometer, so that the structure and properties of the catalyst are researched; under the combined action of the catalyst and potassiumperoxydisulfate serving as an oxidant, a methylene blue aqueous solution is catalytically degraded, and the catalytic degradation capacity of the catalyst on organic dye methylene blue under the conditions of different concentrations, different pH values, different temperatures and different catalyst usage amounts is respectively researched, so that the lower the initial MB concentration is, thelower the pH value is, the more the catalyst addition amount is, and the higher the temperature is, the faster the degradation rate is; and the product provided by the invention is remarkable in catalytic effect, short in time and less in dosage, far exceeds the catalytic effect of catalysts reported in many literatures, can be recycled after being processed, and can be used as a green catalyst for popularization and application.

Description

【Technical field】 [0001] The invention belongs to the technical field of catalyst synthesis, and in particular relates to a graphene oxide-cerium oxide-cobalt tetroxide composite material, a synthesis method and an application thereof. 【Background technique】 [0002] There are many wastewater treatment technologies, and the traditional treatment methods mainly include: physical methods include adsorption method, membrane separation method, and ion exchange method. Biological treatment methods include: white rot bacteria removal method, microbial adsorption method, and anaerobic bacteria decomposition method. Chemical methods include: chemical oxidation, Fenton oxidation, ozone oxidation, photocatalytic oxidation, electrochemical degradation, sodium hypochlorite oxidation. Photocatalytic oxidation is a relatively common method for treating sewage. These methods still need to be further improved due to reasons such as large investment, high cost, and low processing efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83C02F1/72C02F101/30
CPCB01J23/002B01J23/83C02F1/725C02F2101/308
Inventor 闫海刚黄荣秋汪姗姗吴文炳
Owner MINNAN NORMAL UNIV
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