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Applications of a copper/graphene catalyst in water treatment

A graphene and catalyst technology, applied in the field of environmental pollution control, can solve problems such as instability, high price, and high toxicity, and achieve the effect of not being easily oxidized, low toxicity, and stable properties

Inactive Publication Date: 2020-01-24
智环(厦门)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high toxicity of Pd and Ni catalysts, the high price, and the unstable and highly toxic organophosphine ligands, Cu catalysts do not need to use more toxic phosphorus-containing ligands. Therefore, the development of A water treatment application of reducing nitroaromatic compounds with Cu / graphene as a catalyst has great economic and practical value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The present embodiment provides the water treatment application of a kind of copper / graphene catalyst, and its processing method is as follows:

[0021] Take 100mg of nitrobenzene and 500mg of copper / graphene catalyst and put them in the reaction device, add 100ml of water and 200ml of ethanol, stir evenly, raise the temperature to 40°C, and then add 100mg of boron in 3 times successively Sodium hydride and keep the reaction for 2h. After the reaction was completed, the heating was stopped and cooled to room temperature naturally.

Embodiment 2

[0023] The present embodiment provides the water treatment application of a kind of copper / graphene catalyst, and its processing method is as follows:

[0024] Take 200mg of nitrobenzene and 500mg of copper / graphene catalyst and put them in the reaction device, add 100ml of water and 300ml of ethanol, stir evenly, raise the temperature to 50°C, and add 100mg of boron in 4 times successively Sodium hydride and keep the reaction for 3h. After the reaction was completed, the heating was stopped and cooled to room temperature naturally.

Embodiment 3

[0026] The present embodiment provides the water treatment application of a kind of copper / graphene catalyst, and its processing method is as follows:

[0027] Take 300mg of nitrobenzene and 500mg of copper / graphene catalyst and put them in the reaction device, add 100ml of water and 400ml of ethanol, stir evenly, raise the temperature to 60°C, and add boron with a total amount of 100mg in 5 times successively Sodium hydride and keep the reaction for 4h. After the reaction was completed, the heating was stopped and cooled to room temperature naturally.

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PUM

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Abstract

The invention belongs to the technical field of environmental pollution treatment, and relates to applications of a copper / graphene catalyst in water treatment, wherein the copper / graphene catalyst isprepared by using graphene and copper sulfate as raw materials and using ascorbic acid as a reducing agent. According to the invention, the catalyst can achieve the controllable generation of coppernanoparticles, can be stably dispersed on the surface of graphene so as to generate good catalytic performance, and especially performs catalytic reduction on nitro aromatic hydrocarbon compounds, wherein the degradation rate of the copper / graphene catalyst to nitro aromatic hydrocarbons can reach 95%, the selectivity to arylamine is up to 98%, the degradation rate of the copper / graphene catalystto nitro aromatic hydrocarbons is still kept at more than 93% after recycling four times, so that the catalyst has good catalytic activity and good stability, and is an efficient, environmentally-friendly and recyclable catalyst.

Description

technical field [0001] The invention relates to the technical field of environmental pollution control, in particular to the application of a copper / graphene catalyst in water treatment, and in particular to the application of a copper / graphene catalyst in the water treatment of nitroaromatic compounds. Background technique [0002] Nitro-PAHs are a class of organic pollutants discovered in the environment in the late 1970s, which mainly come from organic matter, incomplete combustion of biomass, and parent PAHs in the atmosphere and atmospheric media (NO 2 , NO 3 - 、HNO 3 etc.) are produced by photochemical reactions. Nitro PAHs are directly mutagenic and carcinogenic. Although their concentration in the atmosphere is much lower than that of polycyclic aromatic hydrocarbons (PAHs), their mutation activity is tens or even higher than that of their parent PAHs. Thousands of times. Therefore, when particulate matter carrying NPAHs enters the human body, it will seriously ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/70B01J23/72C02F101/38
CPCC02F1/70B01J23/72C02F2101/38
Inventor 黄锦铮
Owner 智环(厦门)科技有限公司