Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation

Davies, Katie; Allan, Michael; Nagarajan, Sanjay; Townsend, Rachel; Asokan, Vijayshankar; Watson, Trystan; Godfrey, Ruth; Maroto-Valer, M. Mercedes; Kuehnel, Moritz; Pitchaimuthu, Sudhagar

doi:10.1021/acs.iecr.3c00840

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Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation

Katie Davies, Michael Allan, Sanjay Nagarajan

, Rachel Townsend

, Vijayshankar Asokan

, Trystan Watson

, Ruth Godfrey

, M. Mercedes Maroto-Valer, Moritz Kuehnel, Sudhagar Pitchaimuthu

Industrial and Engineering Chemistry Research, Volume: 62, Issue: 45, Pages: 19084 - 19094

Swansea University Authors: Katie Davies, Michael Allan, Rachel Townsend , Trystan Watson , Ruth Godfrey , Moritz Kuehnel, Sudhagar Pitchaimuthu

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DOI (Published version): 10.1021/acs.iecr.3c00840

Abstract

For the first time, we demonstrate a photoelectrocatalysis technique for simultaneous surfactant pollutant degradation and green hydrogen generation using mesoporous WO3/BiVO4 photoanode under simulated sunlight irradiation. The materials properties such as morphology, crystallite structure, chemica...

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Published in:	Industrial and Engineering Chemistry Research
ISSN:	0888-5885 1520-5045
Published:	American Chemical Society (ACS) 2023
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa65139
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The materials properties such as morphology, crystallite structure, chemical environment, optical absorbance, and bandgap energy of the WO3/BiVO4 films are examined and discussed. We have tested the anionic type (sodium 2-naphthalenesulfonate (S2NS)) and cationic type surfactants (benzyl alkyl dimethylammonium compounds (BAC-C12)) as model pollutants. A complete removal of S2NS and BAC-C12 surfactants at 60 and 90 min, respectively, by applying 1.75 V applied potential vs RHE to the circuit, under 1 sun was achieved. An interesting competitive phenomenon for photohole utilization was observed between surfactants and adsorbed water. This led to the formation of H2O2 from water alongside surfactant degradation (anode) and hydrogen evolution (cathode). No byproducts were observed after the direct photohole mediated degradation of surfactants, implying its advantage over other AOPs and biological processes. 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spelling	v2 65139 2023-11-28 Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation e68a8bf6a33dcff11558400a27fdcc33 Katie Davies Katie Davies true false b1f40243f0e1ee0ec5aa706601527f6a Michael Allan Michael Allan true false f796a4ed6bd6dd21ede2117babea3db9 0000-0002-8019-6511 Rachel Townsend Rachel Townsend true false a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false b7e381bae1b3f74a3521be56c9b2d2ae 0000-0002-8830-3625 Ruth Godfrey Ruth Godfrey true false 210dbad181ce095d6f8bf2bd1d616d4e Moritz Kuehnel Moritz Kuehnel true false 2fdbee02f4bfc5a1b174c8bd04afbd2b 0000-0001-9098-8806 Sudhagar Pitchaimuthu Sudhagar Pitchaimuthu true false 2023-11-28 MTLS For the first time, we demonstrate a photoelectrocatalysis technique for simultaneous surfactant pollutant degradation and green hydrogen generation using mesoporous WO3/BiVO4 photoanode under simulated sunlight irradiation. The materials properties such as morphology, crystallite structure, chemical environment, optical absorbance, and bandgap energy of the WO3/BiVO4 films are examined and discussed. We have tested the anionic type (sodium 2-naphthalenesulfonate (S2NS)) and cationic type surfactants (benzyl alkyl dimethylammonium compounds (BAC-C12)) as model pollutants. A complete removal of S2NS and BAC-C12 surfactants at 60 and 90 min, respectively, by applying 1.75 V applied potential vs RHE to the circuit, under 1 sun was achieved. An interesting competitive phenomenon for photohole utilization was observed between surfactants and adsorbed water. This led to the formation of H2O2 from water alongside surfactant degradation (anode) and hydrogen evolution (cathode). No byproducts were observed after the direct photohole mediated degradation of surfactants, implying its advantage over other AOPs and biological processes. In the cathode compartment, 82.51 μmol/cm2 and 71.81 μmol/cm2 of hydrogen gas were generated during the BAC-C12 and S2NS surfactant degradation process, respectively, at 1.75 V RHE applied potential. Journal Article Industrial and Engineering Chemistry Research 62 45 19084 19094 American Chemical Society (ACS) 0888-5885 1520-5045 15 11 2023 2023-11-15 10.1021/acs.iecr.3c00840 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University Other S.P. acknowledges European Regional Development Fund for providing Ser Cymru-II Rising Star Fellowship through Welsh Government (80761-SU-102-West)and supports this work. Also, S.P. thanks Heriot-Watt University for start-up grant support .S.P. and M.F.K. acknowledge support from the Welsh Government (Sêr CymruIII−Tackling Covid-19, Project 076 Re CoVir).EPSRC partially supported this work through a DTA studentship to M.A. (EP/R51312X/1) and a capital investment grant to M.K. (EP/S017925/1).M.F.K.thanks Swansea University for providing start-up funds. 2024-03-07T12:59:08.4069839 2023-11-28T15:24:32.6395892 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Katie Davies 1 Michael Allan 2 Sanjay Nagarajan 0000-0003-2678-693x 3 Rachel Townsend 0000-0002-8019-6511 4 Vijayshankar Asokan 0000-0003-0989-8083 5 Trystan Watson 0000-0002-8015-1436 6 Ruth Godfrey 0000-0002-8830-3625 7 M. Mercedes Maroto-Valer 8 Moritz Kuehnel 9 Sudhagar Pitchaimuthu 0000-0001-9098-8806 10 65139__29138__0e489c67ec1e49b69cbf8bda52f1b9f6.pdf 65139_MKuehnel.pdf 2023-11-28T15:26:41.1342554 Output 4757528 application/pdf Version of Record true Released under the terms of a Creative Attribution Commons license. true eng https:// creativecommons.org/licenses/by/ 4.0/
title	Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation
spellingShingle	Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation Katie Davies Michael Allan Rachel Townsend Trystan Watson Ruth Godfrey Moritz Kuehnel Sudhagar Pitchaimuthu
title_short	Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation
title_full	Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation
title_fullStr	Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation
title_full_unstemmed	Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation
title_sort	Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation
author_id_str_mv	e68a8bf6a33dcff11558400a27fdcc33 b1f40243f0e1ee0ec5aa706601527f6a f796a4ed6bd6dd21ede2117babea3db9 a210327b52472cfe8df9b8108d661457 b7e381bae1b3f74a3521be56c9b2d2ae 210dbad181ce095d6f8bf2bd1d616d4e 2fdbee02f4bfc5a1b174c8bd04afbd2b
author_id_fullname_str_mv	e68a8bf6a33dcff11558400a27fdcc33_*_Katie Davies b1f40243f0e1ee0ec5aa706601527f6a__Michael Allan f796a4ed6bd6dd21ede2117babea3db9__Rachel Townsend a210327b52472cfe8df9b8108d661457__Trystan Watson b7e381bae1b3f74a3521be56c9b2d2ae__Ruth Godfrey 210dbad181ce095d6f8bf2bd1d616d4e__Moritz Kuehnel 2fdbee02f4bfc5a1b174c8bd04afbd2b_**_Sudhagar Pitchaimuthu
author	Katie Davies Michael Allan Rachel Townsend Trystan Watson Ruth Godfrey Moritz Kuehnel Sudhagar Pitchaimuthu
author2	Katie Davies Michael Allan Sanjay Nagarajan Rachel Townsend Vijayshankar Asokan Trystan Watson Ruth Godfrey M. Mercedes Maroto-Valer Moritz Kuehnel Sudhagar Pitchaimuthu
format	Journal article
container_title	Industrial and Engineering Chemistry Research
container_volume	62
container_issue	45
container_start_page	19084
publishDate	2023
institution	Swansea University
issn	0888-5885 1520-5045
doi_str_mv	10.1021/acs.iecr.3c00840
publisher	American Chemical Society (ACS)
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
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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
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description	For the first time, we demonstrate a photoelectrocatalysis technique for simultaneous surfactant pollutant degradation and green hydrogen generation using mesoporous WO3/BiVO4 photoanode under simulated sunlight irradiation. The materials properties such as morphology, crystallite structure, chemical environment, optical absorbance, and bandgap energy of the WO3/BiVO4 films are examined and discussed. We have tested the anionic type (sodium 2-naphthalenesulfonate (S2NS)) and cationic type surfactants (benzyl alkyl dimethylammonium compounds (BAC-C12)) as model pollutants. A complete removal of S2NS and BAC-C12 surfactants at 60 and 90 min, respectively, by applying 1.75 V applied potential vs RHE to the circuit, under 1 sun was achieved. An interesting competitive phenomenon for photohole utilization was observed between surfactants and adsorbed water. This led to the formation of H2O2 from water alongside surfactant degradation (anode) and hydrogen evolution (cathode). No byproducts were observed after the direct photohole mediated degradation of surfactants, implying its advantage over other AOPs and biological processes. In the cathode compartment, 82.51 μmol/cm2 and 71.81 μmol/cm2 of hydrogen gas were generated during the BAC-C12 and S2NS surfactant degradation process, respectively, at 1.75 V RHE applied potential.
published_date	2023-11-15T12:59:07Z
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score	11.013148

Photoelectrocatalytic Surfactant Pollutant Degradation and Simultaneous Green Hydrogen Generation

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