Citation: Qiang ZHAO, Zhinan GUO, Shuying LI, Junli WANG, Zuopeng LI, Zhifang JIA, Kewei WANG, Yong GUO. Cu₂O/Bi₂MoO₆ Z-type heterojunction: Construction and photocatalytic degradation properties[J]. Chinese Journal of Inorganic Chemistry, ;2024, 40(5): 885-894. doi: 10.11862/CJIC.20230435 shu

Cu₂O/Bi₂MoO₆ Z-type heterojunction: Construction and photocatalytic degradation properties

Qiang ZHAO ^{1, 2} ,
Zhinan GUO ^{1, 2} ,
Shuying LI ^{1, 2} ,
Junli WANG ^{1, 2,,} ,
Zuopeng LI ^{1, 2} ,
Zhifang JIA ^{1, 2} ,
Kewei WANG ^{1, 2,,} ,
Yong GUO ^{1, 2}

1.
School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
2.
Shanxi Province Union laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China

Corresponding author: Junli WANG, wangjunlitylg@126.com Kewei WANG, wangkewei@sxdtu.edu.cn
Received Date: 20 November 2023
Revised Date: 14 March 2024

Figures(13)

A series of Cu₂O/Bi₂MoO₆ photocatalysts with Z-type heterojunction were prepared by hydrothermal method. The morphology, structural properties, and photoelectrochemical properties of the catalyst were characterized by scanning electron microscopy, powder X-ray diffraction, IR spectroscopy, UV-Vis absorption spectroscopy, etc. The photocatalytic properties were investigated by tetracycline (TC) degradation. The experimental results showed that the photocatalytic performance of the composite was enhanced by adding Cu₂O. Among them, 20% Cu₂O/Bi₂MoO₆ composite (The mass ratio of Cu₂O and Bi₂MoO₆ was 20%.) exhibited the best degradation efficiency and 95% of TC was degraded within 100 min. The possible mechanism of photocatalytic degradation of TC by the Cu₂O/Bi₂MoO₆ composite was analyzed through free radical capture experiments and band structure analysis. The absorption of visible light is enhanced by the synergistic effect between Cu₂O and Bi₂MoO₆ and the transfer pathway of electrons is changed by the constructed Z-type heterojunction. Thus, the separation efficiency of the electron-hole is improved and the photocatalytic activity is enhanced significantly.
- photocatalyst,
- bismuth molybdate,
- cuprous oxide,
- Cu₂O/Bi₂MoO₆,
- Z-scheme heterojunction,
- tetracycline
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Cu₂O/Bi₂MoO₆ Z-type heterojunction: Construction and photocatalytic degradation properties