Co-W18O49/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism

Jinyuan Liu; Xue Gao; Rong Wang; Shumin Zhu; Xianglin Zhu; Xingwang Zhu; Dan Li; Qingdong Ruan; Ming Cheng; Bin Wang; Huaming Li; Hui Xu; Paul K. Chu

doi:10.1016/j.colsurfa.2024.135050

Co-W₁₈O₄₉/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism

Jinyuan Liu, Xue Gao, Rong Wang, Shumin Zhu, Xianglin Zhu, Xingwang Zhu, Dan Li, Qingdong Ruan, Ming Cheng, Bin Wang^*, Huaming Li, Hui Xu^*, Paul K. Chu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

4 Citations (Scopus)

Abstract

Efficient migration and separation of photogenerated carriers in semiconductors is crucial to the photocatalytic activity, but significant challenges remain. Herein, the Co-W₁₈O₄₉/PDI composite is prepared, and the Z-scheme mechanism is investigated. The Co-W₁₈O₄₉ nanowires are evenly distributed on the PDI nanorods to create closely connected heterojunctions for enhanced interfacial charge-carrier separation and transfer. The photocatalytic activity of Co-W₁₈O₄₉/PDI is monitored by photocatalytic degradation of BPA by visible light irradiation. The degradation rate of BPA by Co-W₁₈O₄₉/PDI composites was 91.2% within 150 minutes of visible light irradiation. Based on the experimental results of LC-MS and ESR, the photocatalytic degradation mechanism is proposed. The synergistic effect not only improve the generation rate of the active species and reduces the activation energy barrier, but also significantly increases O₂ adsorption to make activation easier for efficient photocatalytic BPA degradation. © 2024 Elsevier B.V.

Original language	English
Article number	135050
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	703
Issue number	Part 1
Online published	9 Aug 2024
DOIs	https://doi.org/10.1016/j.colsurfa.2024.135050
Publication status	Published - 20 Nov 2024

Funding

This study was financially supported by the National Natural Science Foundation of China ( 22108106, 22308300, 22108110 ), Natural Science Foundation of Jiangsu Province ( BK20220598 ), Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province (KFKT2024005), National Key R&D Program of China (2023YFB4204600) and City University of Hong Kong Donation Research Grants (DON-RMG No. 9229021 and 9220061 ).

Research Keywords

BPA
PDI
Photocatalytic degradation
W18O49
Z-scheme mechanism

Access Output

10.1016/j.colsurfa.2024.135050

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

Liu, J., Gao, X., Wang, R., Zhu, S., Zhu, X., Zhu, X., Li, D., Ruan, Q., Cheng, M., Wang, B., Li, H., Xu, H., & Chu, P. K. (2024). Co-W₁₈O₄₉/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 703(Part 1), Article 135050. https://doi.org/10.1016/j.colsurfa.2024.135050

@article{16f9b6b7a05141329f6893083a0953e0,

title = "Co-W18O49/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism",

abstract = "Efficient migration and separation of photogenerated carriers in semiconductors is crucial to the photocatalytic activity, but significant challenges remain. Herein, the Co-W18O49/PDI composite is prepared, and the Z-scheme mechanism is investigated. The Co-W18O49 nanowires are evenly distributed on the PDI nanorods to create closely connected heterojunctions for enhanced interfacial charge-carrier separation and transfer. The photocatalytic activity of Co-W18O49/PDI is monitored by photocatalytic degradation of BPA by visible light irradiation. The degradation rate of BPA by Co-W18O49/PDI composites was 91.2% within 150 minutes of visible light irradiation. Based on the experimental results of LC-MS and ESR, the photocatalytic degradation mechanism is proposed. The synergistic effect not only improve the generation rate of the active species and reduces the activation energy barrier, but also significantly increases O2 adsorption to make activation easier for efficient photocatalytic BPA degradation. {\textcopyright} 2024 Elsevier B.V.",

keywords = "BPA, PDI, Photocatalytic degradation, W18O49, Z-scheme mechanism",

author = "Jinyuan Liu and Xue Gao and Rong Wang and Shumin Zhu and Xianglin Zhu and Xingwang Zhu and Dan Li and Qingdong Ruan and Ming Cheng and Bin Wang and Huaming Li and Hui Xu and Chu, {Paul K.}",

year = "2024",

month = nov,

day = "20",

doi = "10.1016/j.colsurfa.2024.135050",

language = "English",

volume = "703",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

issn = "0927-7757",

publisher = "Elsevier B.V.",

number = "Part 1",

}

TY - JOUR

T1 - Co-W18O49/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism

AU - Liu, Jinyuan

AU - Gao, Xue

AU - Wang, Rong

AU - Zhu, Shumin

AU - Zhu, Xianglin

AU - Zhu, Xingwang

AU - Li, Dan

AU - Ruan, Qingdong

AU - Cheng, Ming

AU - Wang, Bin

AU - Li, Huaming

AU - Xu, Hui

AU - Chu, Paul K.

PY - 2024/11/20

Y1 - 2024/11/20

N2 - Efficient migration and separation of photogenerated carriers in semiconductors is crucial to the photocatalytic activity, but significant challenges remain. Herein, the Co-W18O49/PDI composite is prepared, and the Z-scheme mechanism is investigated. The Co-W18O49 nanowires are evenly distributed on the PDI nanorods to create closely connected heterojunctions for enhanced interfacial charge-carrier separation and transfer. The photocatalytic activity of Co-W18O49/PDI is monitored by photocatalytic degradation of BPA by visible light irradiation. The degradation rate of BPA by Co-W18O49/PDI composites was 91.2% within 150 minutes of visible light irradiation. Based on the experimental results of LC-MS and ESR, the photocatalytic degradation mechanism is proposed. The synergistic effect not only improve the generation rate of the active species and reduces the activation energy barrier, but also significantly increases O2 adsorption to make activation easier for efficient photocatalytic BPA degradation. © 2024 Elsevier B.V.

AB - Efficient migration and separation of photogenerated carriers in semiconductors is crucial to the photocatalytic activity, but significant challenges remain. Herein, the Co-W18O49/PDI composite is prepared, and the Z-scheme mechanism is investigated. The Co-W18O49 nanowires are evenly distributed on the PDI nanorods to create closely connected heterojunctions for enhanced interfacial charge-carrier separation and transfer. The photocatalytic activity of Co-W18O49/PDI is monitored by photocatalytic degradation of BPA by visible light irradiation. The degradation rate of BPA by Co-W18O49/PDI composites was 91.2% within 150 minutes of visible light irradiation. Based on the experimental results of LC-MS and ESR, the photocatalytic degradation mechanism is proposed. The synergistic effect not only improve the generation rate of the active species and reduces the activation energy barrier, but also significantly increases O2 adsorption to make activation easier for efficient photocatalytic BPA degradation. © 2024 Elsevier B.V.

KW - BPA

KW - PDI

KW - Photocatalytic degradation

KW - W18O49

KW - Z-scheme mechanism

UR - http://www.scopus.com/inward/record.url?scp=85202749102&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85202749102&origin=recordpage

U2 - 10.1016/j.colsurfa.2024.135050

DO - 10.1016/j.colsurfa.2024.135050

M3 - RGC 21 - Publication in refereed journal

SN - 0927-7757

VL - 703

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

IS - Part 1

M1 - 135050

ER -

Co-W₁₈O₄₉/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism

Abstract

Funding

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

DON_RMG: Fabrication, Characterization, and Properties of Functional Materials - RMGS

DON: Surface Modification and Fabrication of Advanced Materials

Cite this

Co-W18O49/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism

Abstract

Funding

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

DON_RMG: Fabrication, Characterization, and Properties of Functional Materials - RMGS

DON: Surface Modification and Fabrication of Advanced Materials

Cite this

Co-W₁₈O₄₉/PDI Z-scheme heterojunction photocatalyst for photocatalytic BPA degradation and mechanism