MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation.
In this work, the surface of a PVDF-based hollow fiber membrane was modified by coating MoS2-TiO2 to improve the performance of membrane distillation (MD). The MoS2-TiO2 was first synthesized at different ratios using a one-step hydrothermal process. Then, the PVDF-based hollow fiber membrane was sp...
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my.utm.1066122024-07-09T08:02:41Z http://eprints.utm.my/106612/ MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. Fuzil, Nurul Syazana Othman, Nur Hidayati Alias, Nur Hashimah Marpani, Fauziah Mat Shayuti, Muhammad Shafiq Shahruddin, Munawar Zaman Mohd. Razlan, Mohd. Rizuan Abd. Rahman, Norazah Lau, Woei Jye Othman, Mohd. Hafiz Dzarfan Ismail, Ahmad Fauzi Kusworo, Tutuk Djoko TP Chemical technology In this work, the surface of a PVDF-based hollow fiber membrane was modified by coating MoS2-TiO2 to improve the performance of membrane distillation (MD). The MoS2-TiO2 was first synthesized at different ratios using a one-step hydrothermal process. Then, the PVDF-based hollow fiber membrane was spun at various air gaps and PES was also added as an additive. As 5M5T (50 wt% MoS2 and 50 wt% TiO2) possessed better physicochemical properties and narrow band gap, the 5M5T was mixed with trichloro(octadecyl)silane in (OTS) at various loading to form a dip-coating solution. The PP20 membrane (PVDF + PES) spun at a 20 cm air gap was used as a support for MD due to its high porosity and low membrane thickness. It was observed that the contact angle of the MoS2-TiO2/PP20 membrane increased significantly to 136.8 ± 2.33° when the membrane was coated with 0.2% of 5M5T MoS2-TiO2. The MD performances were investigated via an in-house MD system. The results revealed that the performances of MoS2-TiO2/PP20 membranes were much higher than previously reported membranes due to their enhanced hydrophobicity and porosity properties. It was observed that a higher operating temperature could elevate the permeate flux up to 23.3 kg·m−2·h−1, but less than 0.1% changes in the rejection rate. The results obtained in this work suggest that the MoS2-TiO2 coated on the PVDF-based membrane can overcomes the typical permeability/rejection rate trade-off effect, which can play a significant role in enhancing MD performances. Elsevier Ltd. 2023-06 Article PeerReviewed Fuzil, Nurul Syazana and Othman, Nur Hidayati and Alias, Nur Hashimah and Marpani, Fauziah and Mat Shayuti, Muhammad Shafiq and Shahruddin, Munawar Zaman and Mohd. Razlan, Mohd. Rizuan and Abd. Rahman, Norazah and Lau, Woei Jye and Othman, Mohd. Hafiz Dzarfan and Ismail, Ahmad Fauzi and Kusworo, Tutuk Djoko (2023) MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. Journal of Environmental Chemical Engineering, 11 (3). NA-NA. ISSN 2213-3437 http://dx.doi.org/10.1016/j.jece.2023.109866 DOI:10.1016/j.jece.2023.109866 |
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TP Chemical technology Fuzil, Nurul Syazana Othman, Nur Hidayati Alias, Nur Hashimah Marpani, Fauziah Mat Shayuti, Muhammad Shafiq Shahruddin, Munawar Zaman Mohd. Razlan, Mohd. Rizuan Abd. Rahman, Norazah Lau, Woei Jye Othman, Mohd. Hafiz Dzarfan Ismail, Ahmad Fauzi Kusworo, Tutuk Djoko MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. |
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In this work, the surface of a PVDF-based hollow fiber membrane was modified by coating MoS2-TiO2 to improve the performance of membrane distillation (MD). The MoS2-TiO2 was first synthesized at different ratios using a one-step hydrothermal process. Then, the PVDF-based hollow fiber membrane was spun at various air gaps and PES was also added as an additive. As 5M5T (50 wt% MoS2 and 50 wt% TiO2) possessed better physicochemical properties and narrow band gap, the 5M5T was mixed with trichloro(octadecyl)silane in (OTS) at various loading to form a dip-coating solution. The PP20 membrane (PVDF + PES) spun at a 20 cm air gap was used as a support for MD due to its high porosity and low membrane thickness. It was observed that the contact angle of the MoS2-TiO2/PP20 membrane increased significantly to 136.8 ± 2.33° when the membrane was coated with 0.2% of 5M5T MoS2-TiO2. The MD performances were investigated via an in-house MD system. The results revealed that the performances of MoS2-TiO2/PP20 membranes were much higher than previously reported membranes due to their enhanced hydrophobicity and porosity properties. It was observed that a higher operating temperature could elevate the permeate flux up to 23.3 kg·m−2·h−1, but less than 0.1% changes in the rejection rate. The results obtained in this work suggest that the MoS2-TiO2 coated on the PVDF-based membrane can overcomes the typical permeability/rejection rate trade-off effect, which can play a significant role in enhancing MD performances. |
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Fuzil, Nurul Syazana Othman, Nur Hidayati Alias, Nur Hashimah Marpani, Fauziah Mat Shayuti, Muhammad Shafiq Shahruddin, Munawar Zaman Mohd. Razlan, Mohd. Rizuan Abd. Rahman, Norazah Lau, Woei Jye Othman, Mohd. Hafiz Dzarfan Ismail, Ahmad Fauzi Kusworo, Tutuk Djoko |
author_facet |
Fuzil, Nurul Syazana Othman, Nur Hidayati Alias, Nur Hashimah Marpani, Fauziah Mat Shayuti, Muhammad Shafiq Shahruddin, Munawar Zaman Mohd. Razlan, Mohd. Rizuan Abd. Rahman, Norazah Lau, Woei Jye Othman, Mohd. Hafiz Dzarfan Ismail, Ahmad Fauzi Kusworo, Tutuk Djoko |
author_sort |
Fuzil, Nurul Syazana |
title |
MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. |
title_short |
MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. |
title_full |
MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. |
title_fullStr |
MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. |
title_full_unstemmed |
MoS2-TiO2 coated PVDF-based hollow fiber membranes for permeate flux enhancement in membrane distillation. |
title_sort |
mos2-tio2 coated pvdf-based hollow fiber membranes for permeate flux enhancement in membrane distillation. |
publisher |
Elsevier Ltd. |
publishDate |
2023 |
url |
http://eprints.utm.my/106612/ http://dx.doi.org/10.1016/j.jece.2023.109866 |
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1805880837917376512 |
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13.211869 |