Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 46, Issue 30, Pages 16299-16308Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.01.152
Keywords
Bismuth oxychloride; Citric acid; Photocatalysis; Textile dye; Hydrogen evolution
Categories
Funding
- University Grants Commission (UGC), Govt. of India
- Council of Scientific and Industrial Research (CSIR), Govt. of India [09/096 (0872) /2016EMRI]
- Science & Engineering Research Board (SERB) , a statutory body of Department of Science & Technology (DST) , Government of India [EEQ/2018/001127]
- DST, the Govt. of India [IF170684]
- Science and Engineering Research Board (SERB), Govt. of India [SEBA/EEQ/2017/000092]
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Bismuth Oxychloride (BiOCl) is a p-type indirect bandgap semiconductor with adjustable morphology through citric acid concentration. Structural tuning can enhance hydrogen evolution efficiency, making it a promising material for wastewater treatment and electrochemical water-splitting applications.
Bismuth Oxychloride (BiOCl) is a p-type indirect bandgap semiconductor with gaps in the range of 3.2-3.5 eV. In this work, BiOCl was synthesized by a simple hydrothermal method along with variation in the concentration of the capping agent citric acid to perform the tuning of the morphology of the samples. The samples were analyzed by various techniques for insight into phase formation, morphology, chemical composition etc. The as synthesized nanomaterials exhibited extensive variation in crystal structures due to variation in the citric acid ratio. Finally the as-synthesized samples were utilized for effective photocatalytic degradation of toxic textile dyes like Rhodamine B under visible light irradiation and also for hydrogen evolution by electrochemical method. The structural tuning resulted in a noticeable increment in hydrogen evolution observed in an acidic medium for a low overpotential. The as-synthesized material can thus be utilized for waste-water remediation and various electrochemical water-splitting related applications. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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