Unlocking enhanced photo-Fenton,night-Fenton,and photocatalytic activities of dual Z-scheme MoS2/WO3-x/Ag2S core-shell structure via defect engineering

Muhammad Abbas ¹Kashif Hussain ²Navid Hussain Shah ¹Mubashar Ilyas ³Rabia Batool ⁴M.Ashfaq Ahmad ⁵Yanyan Cui ¹Yaling Wang⁶

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作者信息

1. Beijing Engineering Research Center of Mixed Reality and Advanced Display,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China
2. THz Technical Research Center;Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology;Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,College of Physics and Optoelectronic Engineering,Shenzhen University;THz Technical Research Center of Shenzhen University,Shenzhen 518060,China
3. Key Laboratory of Clusters Science of Ministry of Education,School of Chemistry Beijing Institute of Technology,Beijing 100081,China
4. Department of Physics,University of Lahore,Lahore,Pakistan
5. Department of Physics,COMSATS University Islamabad,Lahore Campus,Lahore,Pakistan
6. CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety,National Center for Nanoscience and Technology of China,Beijing 100190,China
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Abstract

Memory catalysis and conventional Fenton reactions are intended to counteract prevailing energy and environmental crises;however,poor performance and the need for UV irradiation question their sustain-ability.Herein,we demonstrate defect-engineered,dual Z-scheme MoS2/WO3-x/Ag2S exhibiting enhanced photo-Fenton(PFR),night-Fenton(NFR),and photocatalytic activities(PR)against tetracycline(TC)and Rhodamine B(RhB).Defects enable the catalyst to store ample electrons just like metals,which play a vi-tal role by exciting H2O2 during Fenton reactions.It removed 91.54％,76.43％,and 83.39％TC(40 mg L-1)in 100 min and registered degradation rate constants of 0.05379,0.02858,and 0.04133 min-1 against RhB(20 mg L-1)during PFR,NFR,and PR respectively.The total organic carbon(TOC)removal rates reached 58.56％and 60.88％during TC and RhB degradations in PFR,respectively.Solid and Liquid EPR analy-sis shows it can excite H2O2 to carry Fenton reactions with and without light.It demonstrates wide pH adaptability and tremendous potential to simultaneously counter energy and environmental crises.

Key words

Fenton reaction/Photolysis/Core-shell/Dual Z-scheme/TC/WO3-x

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基金项目

National Basic Research Program of China(2022YFA1603701)

National Natural Science Foundation of China(82341044)

Beijing Natural science Foundation(L212015)

出版年

2024

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCD

影响因子：0.657

ISSN：1005-0302

参考文献量55

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