Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/136264
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Type: Journal article
Title: S-scheme photocatalysis induced by ultrathin TiO₂(B) nanosheets-anchored hierarchical In₂S₃ spheres for boosted photocatalytic activity
Other Titles: S-scheme photocatalysis induced by ultrathin TiO2(B) nanosheets-anchored hierarchical In2S3 spheres for boosted photocatalytic activity
Author: Zhu, C.
Yao, H.
Le, S.
Yin, Y.
Chen, C.
Xu, H.
Wang, S.
Duan, X.
Citation: Composites Part B: Engineering, 2022; 242:1-9
Publisher: Elsevier BV
Issue Date: 2022
ISSN: 1359-8368
1879-1069
Statement of
Responsibility: 
Chengzhang Zhu, Haiqian Yao, Shukun Le, Yu Yin, Chuanxiang Chen Haitao Xu, Shaobin Wang, Xiaoguang Duan
Abstract: S-scheme photocatalytic systems driven by semiconductors are highly promising to degrade deleterious antibiotics in a sustainable manner. Here, ultrathin TiO2(B) nanosheets-decorated hierarchical In2S3 spheres were fabricated for the photocatalytic degradation of tetracycline. The optimized IT-1.5:1 heterojunction attains stronger visible light-harvesting ability, superior electron-hole transfer efficiency, and abundant coupling heterointerfaces to generate reactive radicals, achieving an impressive removal efficiency of 97.3%, which is approximately 3.2 and 2.1-fold greater than TiO2(B) and In2S3. Furthermore, the possible degradation pathways of tetracycline were proposed based on the calculated Fuki indexes and intermediates detected by a HPLC-MS. On In2S3/TiO2(B) interfaces, the migration of electrons from TiO2(B) to In2S3 and an intensive built-in electronic field resulted in S-scheme mode, instead of type-II. The In2S3/TiO2(B) S-scheme structure offers an internal electron channel at the interface and maintains the active sites with high potentials for photocatalysis. This study provides protocols for rational design of S-scheme catalysts for sustainable water purification.
Keywords: In2S3; TiO2(B); Electronic interaction; S-scheme photocatalyst; Degradation pathways
Rights: © 2022 Elsevier Ltd. All rights reserved.
DOI: 10.1016/j.compositesb.2022.110082
Grant ID: http://purl.org/au-research/grants/arc/DE210100253
Published version: http://dx.doi.org/10.1016/j.compositesb.2022.110082
Appears in Collections:Chemical Engineering publications

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