Visible-Light-Driven Photocatalytic Degradation of Tetracycline Hydrochloride by Z-Scheme Ag3po4/1t@2h-Mos2 Heterojunction: Degradation Mechanism, Toxicity Assessment, and Potential Applications

45 Pages Posted: 22 Dec 2022

See all articles by Xiuyi Hua

Xiuyi Hua

Jilin University (JLU)

Haijun Chen

Jilin University (JLU)

Chang Rong

Jilin University (JLU)

Francis Addison

Jilin University (JLU)

Deming Dong

Jilin University (JLU)

Jiao Qu

Northeast Normal University

Dapeng Liang

Jilin University (JLU)

Zhiyong Guo

Jilin University (JLU)

Na Zheng

Jilin University (JLU)

Haiyang Liu

Jilin University (JLU)

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Abstract

Residual antibiotics in wastewater threaten living organisms and the ecosystem, while the photocatalytic process is recognized as one of the most eco-friendly and promising technologies for the treatment of antibiotic wastewater. In this study, a novel Z-scheme Ag3PO4/1T@2H-MoS2 heterojunction was synthesized, characterized, and used for the visible-light-driven photocatalytic degradation of tetracycline hydrochloride (TCH). It was found that Ag3PO4/1T@2H-MoS2 dosage and coexisting anions had significant effects on the degradation efficiency, which could reach up to 98.9% within 10 min under the optimal condition. Combing experiments and theoretical calculations, the degradation pathway and mechanism were thoroughly investigated. The excellent photocatalytic property of Ag3PO4/1T@2H-MoS2 was achieved attributed to the Z-scheme heterojunction structure, which remarkably inhibited the recombination of photoinduced electrons and holes. The potential toxicity and mutagenicity for TCH and generated intermediates were evaluated, which revealed the ecological toxicity of antibiotic wastewater was reduced effectively during the photocatalytic degradation process.

Keywords: Photocatalytic degradation, Antibiotic, Ag3PO4/1T@2H-MoS2 heterojunction, Toxicity assessment, Z-scheme mechanism

Suggested Citation

Hua, Xiuyi and Chen, Haijun and Rong, Chang and Addison, Francis and Dong, Deming and Qu, Jiao and Liang, Dapeng and Guo, Zhiyong and Zheng, Na and Liu, Haiyang, Visible-Light-Driven Photocatalytic Degradation of Tetracycline Hydrochloride by Z-Scheme Ag3po4/1t@2h-Mos2 Heterojunction: Degradation Mechanism, Toxicity Assessment, and Potential Applications. Available at SSRN: https://ssrn.com/abstract=4310056 or http://dx.doi.org/10.2139/ssrn.4310056

Xiuyi Hua

Jilin University (JLU) ( email )

China

Haijun Chen

Jilin University (JLU) ( email )

China

Chang Rong

Jilin University (JLU) ( email )

China

Francis Addison

Jilin University (JLU) ( email )

China

Deming Dong

Jilin University (JLU) ( email )

China

Jiao Qu

Northeast Normal University ( email )

Changchun
China

Dapeng Liang

Jilin University (JLU) ( email )

China

Zhiyong Guo

Jilin University (JLU) ( email )

Na Zheng

Jilin University (JLU) ( email )

China

Haiyang Liu (Contact Author)

Jilin University (JLU) ( email )

China

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