DataVXScience and Engineering of Composite MaterialsPaper
journal article·2019-01-28Open access

Photocatalytic activity of Cu 2 O/ZnO nanocomposite for the decomposition of methyl orange under visible light irradiation

Xian-sheng Wang, Yu-duo Zhang, Qiao-chu Wang, Bo Dong, Yan-jia Wang, Wei Feng

Science and Engineering of Composite Materials· Volume 26· Issue 1
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Source abstract

Abstract

Abstract ZnO is modified by Cu 2 O by the process of precipitation and calcination. X-ray diffraction has shown that Cu 2 O/ZnO catalysts are made of highly purified cubic Cu 2 O and hexagonal ZnO. Scanning electron microscopy and transmission electron microscopy have shown that ZnO adhered to the surface of Cu 2 O. Due to the doping of Cu 2 O, the absorption range of the Cu 2 O/ZnO catalyst is shifted from the ultraviolet to the visible region due to diffuse reflection. X-ray photoelectron spectroscopy and photoluminescence spectra have confirmed that there is a substantial interaction between the two phases of the resultant catalyst. The degradation efficiency of Cu 2 O/ZnO on methyl orange solution is obviously enhanced compared to Cu 2 O and ZnO. The maximum degradation efficiency is 98%. The degradation efficiency is affected by the pH of the solution and initial concentration. After three rounds of recycling, the degradation rate is almost same. This shows a consistent performance of Cu 2 O/ZnO. The increase in catalytic ability is related to the lattice interaction caused by the doping of Cu 2 O.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Copper-based nanomaterials and applications · Advanced Photocatalysis Techniques · ZnO doping and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Lab of Groundwater Resources and Environment, Ministry of Education , Jilin University , Changchun 130021 , P.R. China

Funding

National Natural Science Foundation of China

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