Efficiency and mechanistic insights of photocatalytic degradation and sterilization utilizing g-C3N4/WO3-x Z-scheme heterojunction under full-spectrum light
被引:1
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作者:
Wang, Wenxia
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h-index: 0
机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Wang, Wenxia
[1
]
Liu, Xiaofeng
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机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Liu, Xiaofeng
[1
]
Li, Zhen
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h-index: 0
机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Li, Zhen
[1
]
Luo, Hangyu
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机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Luo, Hangyu
[1
]
Meng, Zhenbang
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机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Meng, Zhenbang
[1
]
Wang, Han
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机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Wang, Han
[1
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Chen, Weirui
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机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Chen, Weirui
[1
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Chen, Jieying
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机构:
Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Chen, Jieying
[1
]
Chen, Ri
论文数: 0引用数: 0
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机构:
Guangdong Polytech Normal Univ, Sch Electromech Engn, Guangzhou 510665, Guangdong, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
Chen, Ri
[3
]
He, Qi
论文数: 0引用数: 0
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机构:
Southern Med Univ, Sch Publ Hlth, Guangzhou 510515, Peoples R ChinaGuangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
He, Qi
[2
]
机构:
[1] Guangdong Univ Technol, Sch Biomed & Pharmaceut Sci, Guangzhou 510006, Peoples R China
[2] Southern Med Univ, Sch Publ Hlth, Guangzhou 510515, Peoples R China
[3] Guangdong Polytech Normal Univ, Sch Electromech Engn, Guangzhou 510665, Guangdong, Peoples R China
来源:
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
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2024年
/
12卷
/
06期
基金:
中国国家自然科学基金;
关键词:
Full spectrum;
Z-scheme;
WO3-x;
Tetracycline;
Photocatalytic sterilization;
D O I:
10.1016/j.jece.2024.114392
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Designing highly efficient full-spectrum responsive Z-scheme heterojunction for wastewater decontamination and disinfection is urgently essential. Herein, a novel Z-scheme g-C3N4/WO3-x heterojunction was successfully synthesized by a facile wet impregnation method for the highly efficient photocatalytic degradation and sterilization. Benefiting from the accelerated charge separation, broadened light absorption to near infrared region, and appropriate band energy, optimized g-C3N4/WO3-x heterojunction exhibited photocatalytic degradation of 86.3 % and 97.4 % tetracycline in 2 h under visible light and full-spectrum light, respectively. Meanwhile, 6.5log of Escherichia coli strains could also be inactivated by optimized g-C3N4/WO3-x heterojunction within 45 min and 15 min under visible light and full-spectrum light, respectively. Impressively, it also exhibited desirable antiinterference ability and satisfying photocatalytic degradation capacity with various key experimental parameters. The plausible degradation pathways of TC and the main active species involved in the photocatalysis were investigated based on liquid chromatography-mass spectrometer (LC-MS) and electron paramagnetic resonance (EPR) analysis. Mineralization process of TC was further confirmed by three-dimensional fluorescence spectra (3D EMMs). Besides, Toxicity Estimation Software Tool (T.E.S.T.) and Ecological Structure-Activity Relationships (ECOSAR) program were applied to predict the noxiousness of TC and its potential intermediates. The results suggested that the excitotoxicity of intermediates generally decreased relative to the pristine TC. Finally, we propose a plausible enhancement mechanism of photocatalytic degradation and sterilization. This work sheds a new light on the design of novel full-spectrum responsive Z-scheme heterojunction for environmental remediation.
机构:
King Abdulaziz Univ, Fac Sci, Chem Dept, POB 80200, Jeddah 21589, Saudi ArabiaKing Abdulaziz Univ, Fac Sci, Chem Dept, POB 80200, Jeddah 21589, Saudi Arabia
Alsheheri, Soad Z.
Mohamed, Reda M.
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h-index: 0
机构:
King Abdulaziz Univ, Fac Sci, Chem Dept, POB 80200, Jeddah 21589, Saudi ArabiaKing Abdulaziz Univ, Fac Sci, Chem Dept, POB 80200, Jeddah 21589, Saudi Arabia
机构:
Huainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R ChinaHuainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R China
Pan, Xiangping
Meng, Ying
论文数: 0引用数: 0
h-index: 0
机构:
Huainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R ChinaHuainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R China
Meng, Ying
Liu, Qingwang
论文数: 0引用数: 0
h-index: 0
机构:
Huainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R ChinaHuainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R China
Liu, Qingwang
Xu, Mai
论文数: 0引用数: 0
h-index: 0
机构:
Huainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R ChinaHuainan Normal Univ, Anhui Engn Res Ctr Photoelectrocatalyt Electrode M, Sch Chem & Mat Engn, Huainan 232038, Peoples R China