Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane

Slurry photocatalyst reactor is difficult to use on large scale and requires additional process to separate the catalyst. Thus, immobilizing photocatalyst titanium dioxide (TiO2) onto support ensures that the material would not be flushed away. In this study, polytetrafluoroethylene (PTFE) membranes...

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Main Authors: Mohd Saleh, S., Oh, P.C., M Zain, M., Quek, V.C., Zulkifli, A.S., Chew, T.L.
Format: Article
Published: 2023
Online Access:http://scholars.utp.edu.my/id/eprint/37995/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85177218763&doi=10.1016%2fj.jiec.2023.10.022&partnerID=40&md5=38d50389e97f7aa0173d4dea7e9a485c
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spelling oai:scholars.utp.edu.my:379952023-12-11T03:08:27Z http://scholars.utp.edu.my/id/eprint/37995/ Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane Mohd Saleh, S. Oh, P.C. M Zain, M. Quek, V.C. Zulkifli, A.S. Chew, T.L. Slurry photocatalyst reactor is difficult to use on large scale and requires additional process to separate the catalyst. Thus, immobilizing photocatalyst titanium dioxide (TiO2) onto support ensures that the material would not be flushed away. In this study, polytetrafluoroethylene (PTFE) membranes� surfaces were modified by grafting with carboxylic acid, wherein TiO2 was subsequently immobilized. High grafting degree of 8.5 was achieved through wet chemistry method using 30 wt acetic acid, at 60 °C via immersion for 2 hours. TiO2 was successfully immobilized onto the membrane (with amount of 11.32 wt), and its presence was confirmed through FESEM-EDX. The leaching test for the first 24 hours shows less than 10 wt was leached out; however, 59 of the TiO2 had leached out after 4 days of the leaching test. Performance test with immobilized TiO2 shows methanol was produced from the photocatalytic CO2 reduction. Additionally, the PTFE-TiO2 membranes exhibit good reusability even after 5 cycles of use. © 2023 The Korean Society of Industrial and Engineering Chemistry 2023 Article NonPeerReviewed Mohd Saleh, S. and Oh, P.C. and M Zain, M. and Quek, V.C. and Zulkifli, A.S. and Chew, T.L. (2023) Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane. Journal of Industrial and Engineering Chemistry. https://www.scopus.com/inward/record.uri?eid=2-s2.0-85177218763&doi=10.1016%2fj.jiec.2023.10.022&partnerID=40&md5=38d50389e97f7aa0173d4dea7e9a485c 10.1016/j.jiec.2023.10.022 10.1016/j.jiec.2023.10.022 10.1016/j.jiec.2023.10.022
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Slurry photocatalyst reactor is difficult to use on large scale and requires additional process to separate the catalyst. Thus, immobilizing photocatalyst titanium dioxide (TiO2) onto support ensures that the material would not be flushed away. In this study, polytetrafluoroethylene (PTFE) membranes� surfaces were modified by grafting with carboxylic acid, wherein TiO2 was subsequently immobilized. High grafting degree of 8.5 was achieved through wet chemistry method using 30 wt acetic acid, at 60 °C via immersion for 2 hours. TiO2 was successfully immobilized onto the membrane (with amount of 11.32 wt), and its presence was confirmed through FESEM-EDX. The leaching test for the first 24 hours shows less than 10 wt was leached out; however, 59 of the TiO2 had leached out after 4 days of the leaching test. Performance test with immobilized TiO2 shows methanol was produced from the photocatalytic CO2 reduction. Additionally, the PTFE-TiO2 membranes exhibit good reusability even after 5 cycles of use. © 2023 The Korean Society of Industrial and Engineering Chemistry
format Article
author Mohd Saleh, S.
Oh, P.C.
M Zain, M.
Quek, V.C.
Zulkifli, A.S.
Chew, T.L.
spellingShingle Mohd Saleh, S.
Oh, P.C.
M Zain, M.
Quek, V.C.
Zulkifli, A.S.
Chew, T.L.
Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane
author_facet Mohd Saleh, S.
Oh, P.C.
M Zain, M.
Quek, V.C.
Zulkifli, A.S.
Chew, T.L.
author_sort Mohd Saleh, S.
title Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane
title_short Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane
title_full Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane
title_fullStr Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane
title_full_unstemmed Revolutionizing CO2 reduction with TiO2 photocatalyst immobilized on polytetrafluoroethylene (PTFE) membrane
title_sort revolutionizing co2 reduction with tio2 photocatalyst immobilized on polytetrafluoroethylene (ptfe) membrane
publishDate 2023
url http://scholars.utp.edu.my/id/eprint/37995/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85177218763&doi=10.1016%2fj.jiec.2023.10.022&partnerID=40&md5=38d50389e97f7aa0173d4dea7e9a485c
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score 13.211869