化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (7) : 114-118. DOI: 10.19817/j.cnki.issn 1006-3536.2020.07.027

新材料与新技术

构造CuO/Cu₂S复合微纳米晶材料及其光催化性能研究

作者信息 +

Study on preparation and photocatalytic property of CuO/Cu₂S micro-nanocrystal composite

Yue Yangyang, Wei Yi, Deng Minglong, Li Li

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文章历史 +

Received		Published
2019-03-20		2020-07-20
Issue Date	Revised Date
2022-11-01	2019-03-20

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摘要

采用水热法合成CuO/Cu₂S复合材料,将CuO纳米颗粒修饰在Cu₂S颗粒表面。通过X射线衍射(XRD)、扫描电子显微镜(SEM)和紫外-可见-近红外光谱等研究CuO/Cu₂S复合材料的晶体结构、表面形貌和光吸收性能,并实验分析CuO/Cu₂S光催化降解亚甲基蓝的性能。结果表明,0.25% CuO/Cu₂S复合材料光催化材料催化性能最佳,在90min内对亚甲基蓝的降解率为99%,相比单一Cu₂S催化降解亚甲基蓝性能提高65%。本研究通过纳米颗粒修饰表面,实现两种半导体的能带匹配,从而提升光催化性能,为开发高性能自组装纳米结构光催化材料提供依据。

Abstract

CuO was modified on the surface of Cu₂S particles by hydrothermal method,and constructed the CuO/Cu₂S micro-nanocrystals composites.The crystalline structures,morphologies and light absorption properties of the CuO/Cu₂S were analysed using X-ray diffractometer,scanning electron microscopy and UV-VIS-NIR,respectively.Methylene blue was used as the model substance to evaluate catalytic activity of CuO/Cu₂S material under visible light.The results shown that the best performance was achieved with the 0.25% CuO/Cu₂S,the photocatalytic degradation of methylene blue reached 99% in 90min under the irradiation of light,which was 65% higher than the Cu₂S.The higher performancebecause of the CuO was modified on the surface of Cu₂S particles formed composites.A new choice for the development of self-assembled nano-structured photocatalytic materials was provided through the forming of heterostructures.

关键词

水热法 / 复合材料 / 硫化亚铜 / 光催化材料

Key words

hydrothermal method / composite / copper(I) sulphur / photocatalytic material

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构造CuO/Cu₂S复合微纳米晶材料及其光催化性能研究[J]. 化工新型材料, 2020, 48(7): 114-118 DOI:10.19817/j.cnki.issn 1006-3536.2020.07.027

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