Tai, Zhong Sheng and Othman, Mohd. Hafiz Dzarfan and Mustafa, Azeman and Ravi, Jeganes and Wong, Kar Chun and Koo, Khong Nee and Hubadillah, Siti Khadijah and Azali, Mohd. Ariff and Alias, Nur Hashimah and Ng, Be Cheer and Mohamed Dzahir, Mohd. Irfan Hatim and Ismail, Ahmad Fauzi and A. Rahman, Mukhlis and Jaafar, Juhana (2021) Development of hydrophobic polymethylhydrosiloxane/tetraethylorthosilicate (PMHS/TEOS) hybrid coating on ceramic membrane for desalination via membrane distillation. Journal of Membrane Science, 637 (NA). pp. 1-14. ISSN 0376-7388
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Official URL: http://dx.doi.org/10.1016/j.memsci.2021.119609
Abstract
This study presents a facile approach to produce hydrophobic ceramic hollow fiber membranes (CHFMs) for membrane distillation (MD) desalination using the polymethylhydrosiloxane/tetraethylorthosilicate (PMHS/TEOS) hybrid material. The CHFM was modified via dip-coating with PMHS/TEOS hybrid solution followed by post-coating spinning to facilitate the formation of pores on the coating layer. The effects of ethanol and PMHS concentrations on the coating layer structure and hydrophobicity of the membranes were studied. CHFMs acquired hydrophobic properties after surface modification with the water contact angle values in the range of 108.2° to 124.1°. These membranes showed outstanding direct contact MD (DCMD) desalination performance with salt rejections of >99.98%. A flux of 6.7 L/m2h was achieved by the surface-modified CHFM when treating feed solution with a salinity of 35,000 ppm.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Ceramic hollow fiber membrane, Desalination, Membrane distillation, Polymethylhydrosiloxane (PMHS), Tetraethylorthosilicate (TEOS) |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical and Energy Engineering |
| ID Code: | 97437 |
| Deposited By: | Widya Wahid |
| Deposited On: | 10 Oct 2022 07:56 |
| Last Modified: | 10 Oct 2022 07:56 |
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