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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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 |
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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 |
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Mohd Saleh, S. Oh, P.C. M Zain, M. Quek, V.C. Zulkifli, A.S. Chew, T.L. |
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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 |
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2023 |
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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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