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UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction

Maryam Ahmadi, Seyed Mehdi Alavi, Mary Larimi Orcid Logo

Catalysis Communications, Volume: 179, Start page: 106681

Swansea University Author: Mary Larimi Orcid Logo

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DOI (Published version): 10.1016/j.catcom.2023.106681

Abstract

A series of Bi2WO6/TiO2 composite photocatalysts with different ratios of Bi2WO6 nanosheets to TiO2 nanobelts (1, ½, ⅓ and ¼) were synthesized by hydrothermal method and evaluated for CO2 photoreduction. The structural and optical properties of these photocatalysts were investigated by XRD, N2-physi...

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Published in: Catalysis Communications
ISSN: 1566-7367
Published: Elsevier BV 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa67228
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spelling v2 67228 2024-07-30 UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction db028d01b9d62d39518f147f6bb08fa5 0000-0001-5566-171X Mary Larimi Mary Larimi true false 2024-07-30 EAAS A series of Bi2WO6/TiO2 composite photocatalysts with different ratios of Bi2WO6 nanosheets to TiO2 nanobelts (1, ½, ⅓ and ¼) were synthesized by hydrothermal method and evaluated for CO2 photoreduction. The structural and optical properties of these photocatalysts were investigated by XRD, N2-physisorption, EDX, FESEM, Raman, TPD, DRS and PL. Bi2WO6/TiO₂ composite photocatalysts show enhanced CO2 adsorption capacity and coversion performance compared to both pure TiO₂ and bulk Bi2WO6. Loading Bi2WO6 nanosheets on TiO2 nanobelts leads to formation a heterojunction, which enhances the photocatalytic visible light performance by decreasing the recombination rate of photoinduced electron-hole pairs. The maximum CH4 production of 18.95 μmol/gcat in 8 h has been reported for composite with Bi2WO6/TiO₂ ratio of ½, which is 3 times higher than that of bulk Bi2WO6 and pure TiO2. Journal Article Catalysis Communications 179 106681 Elsevier BV 1566-7367 Bi2WO6; TiO2; Photocatalyst; CO2 conversion 1 6 2023 2023-06-01 10.1016/j.catcom.2023.106681 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2024-08-22T16:19:05.1650892 2024-07-30T11:34:25.9368144 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Maryam Ahmadi 1 Seyed Mehdi Alavi 2 Mary Larimi 0000-0001-5566-171X 3 67228__31155__f760c7f103fc4b4e83c3fd800286684a.pdf 67228.VoR.pdf 2024-08-22T16:17:38.4703209 Output 4381212 application/pdf Version of Record true © 2023 The Authors. This is an open access article under the CC BY license. true eng http://creativecommons.org/licenses/by/4.0/
title UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction
spellingShingle UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction
Mary Larimi
title_short UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction
title_full UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction
title_fullStr UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction
title_full_unstemmed UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction
title_sort UV–vis light responsive Bi2WO6 nanosheet/TiO2 nanobelt heterojunction photo-catalyst for CO2 reduction
author_id_str_mv db028d01b9d62d39518f147f6bb08fa5
author_id_fullname_str_mv db028d01b9d62d39518f147f6bb08fa5_***_Mary Larimi
author Mary Larimi
author2 Maryam Ahmadi
Seyed Mehdi Alavi
Mary Larimi
format Journal article
container_title Catalysis Communications
container_volume 179
container_start_page 106681
publishDate 2023
institution Swansea University
issn 1566-7367
doi_str_mv 10.1016/j.catcom.2023.106681
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description A series of Bi2WO6/TiO2 composite photocatalysts with different ratios of Bi2WO6 nanosheets to TiO2 nanobelts (1, ½, ⅓ and ¼) were synthesized by hydrothermal method and evaluated for CO2 photoreduction. The structural and optical properties of these photocatalysts were investigated by XRD, N2-physisorption, EDX, FESEM, Raman, TPD, DRS and PL. Bi2WO6/TiO₂ composite photocatalysts show enhanced CO2 adsorption capacity and coversion performance compared to both pure TiO₂ and bulk Bi2WO6. Loading Bi2WO6 nanosheets on TiO2 nanobelts leads to formation a heterojunction, which enhances the photocatalytic visible light performance by decreasing the recombination rate of photoinduced electron-hole pairs. The maximum CH4 production of 18.95 μmol/gcat in 8 h has been reported for composite with Bi2WO6/TiO₂ ratio of ½, which is 3 times higher than that of bulk Bi2WO6 and pure TiO2.
published_date 2023-06-01T16:19:03Z
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