Constructing copper Phthalocyanine/Molybdenum disulfide (CuPc/MoS 2 ) S-scheme heterojunction with S-rich vacancies for enhanced Visible-Light photocatalytic CO 2 reduction.

Autor: Ali H; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Liu M; SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Southeast University, Nanjing 210096, China., Ali S; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Ali A; Department of Chemistry, Abdul Wali Khan University Mardan, KPK, 23200, Pakistan., Ismail PM; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Ullah R; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Ali S; Energy, Water, and Environment Research Lab, Prince Sultan University, Riyadh, Kingdom of Saudi Arabia. Electronic address: sajjad@alum.imr.ac.cn., Raziq F; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Bououdina M; Energy, Water, and Environment Research Lab, Prince Sultan University, Riyadh, Kingdom of Saudi Arabia., Hayat S; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Ali U; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Zhou Y; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China., Wu X; School of Mechanical Engineering, Chengdu University, Chengdu 610106, China., Zhong L; SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Southeast University, Nanjing 210096, China., Zhu L; Department of Material and Chemistry, Huzhou University, Huzhou 313000, China., Xiao H; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China. Electronic address: hyxiao@uestc.edu.cn., Xia P; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China. Electronic address: forsky@csj.uestc.edu.cn., Qiao L; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China. Electronic address: liang.qiao@uestc.edu.cn.
Jazyk: angličtina
Zdroj: Journal of colloid and interface science [J Colloid Interface Sci] 2024 Jul; Vol. 665, pp. 500-509. Date of Electronic Publication: 2024 Mar 17.
DOI: 10.1016/j.jcis.2024.03.110
Abstrakt: Constructing a heterojunction by combining two semiconductors with similar band structures is a successful approach to obtaining photocatalysts with high efficiency. Herein, a CuPc/DR-MoS 2 heterojunction involving copper phthalocyanine (CuPc) and molybdenum disulfide with S-rich vacancies (13.66%) is successfully prepared by the facile hydrothermal method. Experimental results and theoretical calculations firmly demonstrated that photoelectrons exhibit an S-scheme charge transfer mechanism in the CuPc/DR-MoS 2 heterojunction. The S-scheme heterojunction system has proven significant advantages in promoting the charge separation and transfer of photogenerated carriers, enhancing visible-light responsiveness, and achieving robust photoredox capability. As a result, the optimized 3CuPc/DR-MoS 2 S-scheme heterojunction exhibits photocatalytic yields of CO and CH 4 at 200 and 111.6 μmol g -1 h -1 , respectively. These values are four times and 4.5 times greater than the photocatalytic yields of pure DR-MoS 2 . This study offers novel perspectives on the advancement of innovative and highly effective heterojunction photocatalysts.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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