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A graphene-cuins 2 nanocomposite photocatalyst

A-cuins2, nano-composite technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of easy dissolution, harm to the environment, expensive metal materials, etc. Effects of specific surface area, high stability and regeneration performance

Inactive Publication Date: 2020-02-18
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(4) The price of metal materials is relatively expensive, and they are easy to dissolve during the reaction process and endanger the environment

Method used

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  • A graphene-cuins <sub>2</sub> nanocomposite photocatalyst
  • A graphene-cuins <sub>2</sub> nanocomposite photocatalyst
  • A graphene-cuins <sub>2</sub> nanocomposite photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Using graphite powder as raw material, graphene oxide was synthesized by Hummers method, and then graphene oxide was dispersed in N,N-dimethylformamide solution.

[0032] (2) Add 1.0 mmol cuprous chloride, 1.0 mmol indium chloride, and 2.5 mmol thioacetamide to 40 mL N,N-dimethylformamide solution and stir until the solution is transparent, then add 0.00211 g graphene, Then sonication was performed for 60 min.

[0033] (3) Transfer the solution to a 100 mL reactor, 120 o C, the reaction time is 8 hours.

[0034] (4) Centrifuge the reacted sample and wash it several times with deionized water and ethanol. o C for 12 hours under vacuum. Then take it out, let it cool naturally, and grind it. The obtained product is rGO-CuInS 2 Nanocomposite photocatalysts.

Embodiment 2

[0036] (1) Using graphite powder as raw material, graphene oxide was synthesized by the Hummers method, and then graphene oxide was dispersed in ethylene glycol solution.

[0037] (2) Add 1.0 mmol of cuprous chloride, 1.0 mmol of indium chloride, and 2.5 mmol of thioacetamide into 40 mL of ethylene glycol solution and stir until the solution is transparent, then add 0.00211 g of graphene, and then perform ultrasonication for 60 min .

[0038] (3) Transfer the solution to a 100 mL reactor, 120 o C, the reaction time is 8 hours.

[0039] (4) Centrifuge the reacted sample and wash it several times with deionized water and ethanol. o C for 12 hours under vacuum. Then take it out, let it cool naturally, and grind it. The obtained product is rGO-CuInS 2 Nanocomposite photocatalysts.

Embodiment 3

[0041] (1) Using graphite powder as raw material, graphene oxide was synthesized by Hummers method, and then graphene oxide was dispersed into ethanol solution.

[0042] (2) Add 1.0 mmol of cuprous chloride, 1.0 mmol of indium chloride, and 4 mmol of thioacetamide into 40 mL of ethanol solution and stir until the solution is transparent, then add 0.01055 g of graphene, and then perform ultrasonication for 60 min.

[0043] (3) Transfer the solution to a 100 mL reactor, 180 o C, the reaction time is 15 hours.

[0044] (4) Centrifuge the reacted sample and wash it several times with deionized water and ethanol. o C for 12 hours under vacuum. Then take it out, let it cool naturally, and grind it. The obtained product is rGO-CuInS 2 Nanocomposite photocatalysts.

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Abstract

The present invention relates to a graphene-CuInS 2 The nanocomposite photocatalyst is characterized in that: firstly, the modified Hummers method is used to prepare graphene oxide (GO), and the GO is dispersed in an organic solvent. The inorganic cuprous salt, inorganic indium salt and sulfur source were dissolved in the organic solution, and the prepared GO organic solution was added at the same time, and the nano-CuInS was reacted by one-step solvothermal reaction. 2 The film is chemically bonded on an atomically thick graphene (rGO) film (rGO‑CuInS 2 ). When the content of graphene is 0.1-10%, rGO‑CuInS 2 The nanocomposite photocatalyst has a unique surface structure, large specific surface area, narrow band gap, high stability, good reproducibility, and high catalytic activity under visible light. It can efficiently treat actual pharmaceutical wastewater, and its COD removal rate can reach 86.5%.

Description

technical field [0001] The present invention relates to a rGO-CuInS with unique surface structure and excellent visible light catalytic activity 2 Nanocomposite photocatalyst and preparation method thereof. Background technique [0002] Pharmaceutical and Personal Care Products (PPCPs) are a new type of environmental pollutants with the characteristics of toxicity, persistence, bioaccumulation and biodegradability. The production waste and the use of cosmetics enter the water environment, which brings hidden dangers to the water environment quality, ecosystem safety and human health. Therefore, it becomes very important how to remove organic pollutants in wastewater before it is discharged into the environment. Photocatalytic oxidation technology is a new water pollution treatment technology with wide application prospects. [0003] Ternary sulfide semiconductors have the advantages of narrow band gap and high stability, and have attracted much attention in recent years. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/04C02F1/30
Inventor 邓芳卢晓英刘玲玲夏佰慧丁琳罗旭彪罗胜联
Owner NANCHANG HANGKONG UNIVERSITY
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