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| Cu2O/Bi2CrO6 Z-scheme heterojunction: Construction and photocatalytic degradation properties for tetracycline |
| Author Name | Affiliation | E-mail | | GUO Zhinan | School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China | | | WANG Junli | School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China | wangjunlitylg@126.com | | ZHAO Qiang | School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China | zhaoqiangtylg@126.com | | JIA Zhifang | School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China | | | LI Zuopeng | School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China | | | WANG Kewei | School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China | wangkewei@sxdtu.edu.cn | | GUO Yong | School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, China
Shanxi Province Union Laboratory of Clean Energy Materials, Shanxi Datong University, Datong, Shanxi 037009, China | |
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| Abstract: The Z-scheme heterojunction Cu2O/Bi2CrO6 photocatalyst was successfully prepared by introducing Cu2O on the Bi2CrO6 surface using a coprecipitation method. The photocatalytic degradation of tetracycline (TC) on Cu2O/ Bi2CrO6 under visible light irradiation was investigated. It was found that the Cu2O/Bi2CrO6 photocatalyst had the best photocatalytic activity when the mass ratio of Cu2O to Bi2CrO6 was 20%, and the TC could be degraded by 87.5% within 100 min, which was about 1.8 times and 1.3 times higher than that of pure Bi2CrO6 and pure Cu2O, respectively. Besides, the Cu2O/Bi2CrO6 photocatalyst also showed good stability and reusability. The Z scheme heterojunction structure of Cu2O/Bi2CrO6 provided increased active sites, enhanced interfacial charge separation, and improved separation efficiency of photogenerated electro-hole (e--h+) pairs, leading to enhanced photocatalytic properties. Electron paramagnetic resonance (EPR) measurement confirmed that the superoxide radical (·O2- ), hydroxyl radical (·OH), and h+ were the primary active species during photocatalysis. |
| Keywords: photocatalyst Cu2O bismuth chromate photocatalytic degradation tetracycline |
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| GUO Zhinan,WANG Junli,ZHAO Qiang,JIA Zhifang,LI Zuopeng,WANG Kewei,GUO Yong.Cu2O/Bi2CrO6 Z-scheme heterojunction: Construction and photocatalytic degradation properties for tetracycline[J].Chinese Journal of Inorganic Chemistry,2025,41(4):741-752. |
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