Preparation method and application of a high-performance molybdenum disulfide/graphene oxide/iron oxide yellow composite catalyst

A composite catalyst, molybdenum disulfide technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of FeOOH/graphene oxide catalytic efficiency to be improved, and achieve good catalytic reduction effect , Improve the catalytic effect, the effect of large specific surface area

Active Publication Date: 2020-06-05
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although FeOOH / graphene oxide has a catalytic effect, the catalytic efficiency of FeOOH / graphene oxide needs to be improved

Method used

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  • Preparation method and application of a high-performance molybdenum disulfide/graphene oxide/iron oxide yellow composite catalyst
  • Preparation method and application of a high-performance molybdenum disulfide/graphene oxide/iron oxide yellow composite catalyst
  • Preparation method and application of a high-performance molybdenum disulfide/graphene oxide/iron oxide yellow composite catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]This embodiment prepares molybdenum disulfide / graphene oxide / iron oxide yellow composite catalyst according to the following steps:

[0032] Step 1: Preparation of Sheet Graphene Oxide

[0033] Sheet graphene oxide is prepared by the improved Hummers method, specifically as follows:

[0034] Mix 2g graphite powder with 1g NaNO 3 Add the powder into a three-necked flask, and then add 50 mL of concentrated H with a mass concentration of 98%. 2 SO 4 , with magnetic stirring in an ice-water bath, 6g KMnO 4 The solid particles were added to the three-necked flask in batches at 5°C, and after the addition was completed, the temperature was raised to 35°C and stirred for 24 hours; after the reaction, 100mL of deionized water was added to the reaction solution, and 250mL of deionized water was added after mixing evenly, and then Add 15mL of 30wt% hydrogen peroxide dropwise to the reaction solution, then add 200mL of 1mol / L HCl solution, stir and mix evenly, then centrifuge a...

Embodiment 2

[0041] This embodiment prepares molybdenum disulfide / graphene oxide / iron oxide yellow composite catalyst according to the same method as in Example 1, the difference is only that molybdenum disulfide, graphene oxide and ferrous sulfate are used in a mass ratio of 0.4:1 in step 3 : 18 ratio mixing, and then ultrasonically dispersed to obtain a composite solution, the resulting molybdenum disulfide / graphene oxide / iron oxide yellow composite catalyst is recorded as 2% MoS 2 / GO / FeOOH.

Embodiment 3

[0043] This embodiment prepares molybdenum disulfide / graphene oxide / iron oxide yellow composite catalyst according to the same method as in Example 1, the difference is only that molybdenum disulfide, graphene oxide and ferrous sulfate are used in a mass ratio of 0.8:1 in step 3 : 18 ratio mixing, and then ultrasonically dispersed to obtain a composite solution, the resulting molybdenum disulfide / graphene oxide / iron oxide yellow composite catalyst is recorded as 4% MoS 2 / GO / FeOOH.

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Abstract

The invention discloses a preparation method and application of high-performance molybdenum disulfide / oxidized graphene / ferric oxide yellow composite catalyst. Molybdenum disulfide, oxidized grapheneand ferrous sulfate are mixed; after uniform ultrasonic dispersion, water-bath heating reaction is performed to obtain the molybdenum disulfide / oxidized graphene / ferric oxide yellow composite catalyst; the composite catalyst can be used as a catalyst in trifluralin catalytic reduction reaction. Laminar molybdenum disulfide is added into the prepared composite catalyst, so that the catalytic performance of the composite catalyst is greatly improved.

Description

technical field [0001] The invention relates to a preparation method of a catalyst, in particular to a preparation method and application of a high-performance molybdenum disulfide / graphene oxide / yellow iron oxide composite catalyst, belonging to the field of catalysts. Background technique [0002] Due to the acceleration of industrialization and agriculturalization, problems such as environmental pollution, ecological damage, and climate anomalies are becoming more and more serious. It is extremely urgent to actively develop new energy sources to reduce pollutant emissions and solve environmental pollution problems in the process of industrialization and agriculturalization. Among them, residual pesticides, as a common agricultural product, can cause serious consequences when entering the water environment, because these residual pesticides often contain refractory and toxic organic pollutants, among which azo compounds and aromatic amines have carcinogenic and mutagenic ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051C02F1/70C02F101/14
CPCB01J27/0515C02F1/70C02F2101/14
Inventor 周艺峰刘妍陈鹏鹏聂王焰徐颖
Owner ANHUI UNIVERSITY
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