Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/163084
Title: Charge modulation at atomic-level through substitutional sulfur doping into atomically thin Bi₂ WO₆ toward promoting photocatalytic CO₂ reduction
Authors: Teh, Yee Wen
Er, Chen-Chen
Kong, Xin Ying
Ng, Boon-Junn
Yong, Siek-Ting
Chai, Siang-Piao
Keywords: Science::Chemistry
Issue Date: 2022
Source: Teh, Y. W., Er, C., Kong, X. Y., Ng, B., Yong, S. & Chai, S. (2022). Charge modulation at atomic-level through substitutional sulfur doping into atomically thin Bi₂ WO₆ toward promoting photocatalytic CO₂ reduction. ChemSusChem, 15(14), e202200471-. https://dx.doi.org/10.1002/cssc.202200471
Journal: ChemSusChem
Abstract: Photocatalytic reduction of CO2 has attracted enormous interest as a sustainable and renewable source of energy. In the past decade, numerous bulk-type semiconductors have been developed, but the existing designs suffer many limitations, namely rapid recombination of charge carriers and weak light absorption ability. Herein, a bottom-up approach was developed to design atomically thin sulfur-doped Bi2 WO6 perovskite nanosheets (S-BWO) with improved reduction ability, extended visible light absorption, prolonged lifetime of charge carriers, enhanced adsorption of CO2 , and reduced work function. Compared with pristine Bi2 WO6 (P-BWO), S-BWO nanosheets exhibited a 3-fold improvement in photocatalytic reduction of CO2 under simulated sunlight irradiation. Experimental studies and density functional theory calculations revealed the synergistic roles of atomically thin nanosheets and S atoms in promoting photocatalytic efficiency.
URI: https://hdl.handle.net/10356/163084
ISSN: 1864-5631
DOI: 10.1002/cssc.202200471
Rights: © 2022 The Authors. ChemSusChem published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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