Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes
Porous photocatalytic ceramic membranes have been extensively used for separation and purification processes. This study investigates the characterization and performance of porous ceramic membranes coated with TiO2. The flat sheet membranes were prepared via phase inversion. The membranes were dipc...
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| Language: | English |
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Springer Nature
2018
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| Online Access: | http://eprints.uthm.edu.my/5567/ http://eprints.uthm.edu.my/5567/1/AJ%202018%20%28223%29.pdf |
| _version_ | 1848888584475508736 |
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| author | Alias, Siti Salwa Harun, Zawati Abd Latif, Intan Suyana |
| author_facet | Alias, Siti Salwa Harun, Zawati Abd Latif, Intan Suyana |
| author_sort | Alias, Siti Salwa |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | Porous photocatalytic ceramic membranes have been extensively used for separation and purification processes. This study investigates the characterization and performance of porous ceramic membranes coated with TiO2. The flat sheet membranes were prepared via phase inversion. The membranes were dipcoated in different concentrations of TiO2 nanoparticle suspensions (0.01, 0.03 and 0.05 wt%) before sintering or after the sintering process. The ceramic membranes coated with 0.03 wt% TiO2 before sintering at showed excellent morphology with a porous top, dense bottom, and the cross section showed strong adhesion of the penetrated TiO2-coated layer on the surface and within the pores. This membrane exhibited the lowest surface roughness (0.05 lm) and optimum physical properties, permeation of pure water flux (128.28 L m-2 h-1 ), rejection rate (86.06%), better antifouling (highest normalized flux ratio) and self-cleaning performance through increased humic acid rejection flux (94.32 L m-2 h-1 ) and rejection rate (98.56%) subsequent to exposure to UV light. All of the membranes coated with different concentrations of TiO2 prior to the sintering process showed uniform, homogenous coating with enhanced properties and performance. This can be related to the good penetration of TiO2 nanoparticles and better absorption by the membrane structure. The accumulation of closely tied TiO2 nanoparticle suspension on the surface of membranes coated after sintering has essentially blocked the membrane surface and pores which might concurrently explained their reduced performance. |
| first_indexed | 2025-11-15T20:12:36Z |
| format | Article |
| id | uthm-5567 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:12:36Z |
| publishDate | 2018 |
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| spelling | uthm-55672022-01-17T01:38:47Z http://eprints.uthm.edu.my/5567/ Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes Alias, Siti Salwa Harun, Zawati Abd Latif, Intan Suyana T Technology (General) TP1080-1185 Polymers and polymer manufacture Porous photocatalytic ceramic membranes have been extensively used for separation and purification processes. This study investigates the characterization and performance of porous ceramic membranes coated with TiO2. The flat sheet membranes were prepared via phase inversion. The membranes were dipcoated in different concentrations of TiO2 nanoparticle suspensions (0.01, 0.03 and 0.05 wt%) before sintering or after the sintering process. The ceramic membranes coated with 0.03 wt% TiO2 before sintering at showed excellent morphology with a porous top, dense bottom, and the cross section showed strong adhesion of the penetrated TiO2-coated layer on the surface and within the pores. This membrane exhibited the lowest surface roughness (0.05 lm) and optimum physical properties, permeation of pure water flux (128.28 L m-2 h-1 ), rejection rate (86.06%), better antifouling (highest normalized flux ratio) and self-cleaning performance through increased humic acid rejection flux (94.32 L m-2 h-1 ) and rejection rate (98.56%) subsequent to exposure to UV light. All of the membranes coated with different concentrations of TiO2 prior to the sintering process showed uniform, homogenous coating with enhanced properties and performance. This can be related to the good penetration of TiO2 nanoparticles and better absorption by the membrane structure. The accumulation of closely tied TiO2 nanoparticle suspension on the surface of membranes coated after sintering has essentially blocked the membrane surface and pores which might concurrently explained their reduced performance. Springer Nature 2018 Article PeerReviewed text en http://eprints.uthm.edu.my/5567/1/AJ%202018%20%28223%29.pdf Alias, Siti Salwa and Harun, Zawati and Abd Latif, Intan Suyana (2018) Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes. Journal of Materials Science, 53. pp. 11534-11552. ISSN 0022-2461 |
| spellingShingle | T Technology (General) TP1080-1185 Polymers and polymer manufacture Alias, Siti Salwa Harun, Zawati Abd Latif, Intan Suyana Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes |
| title | Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes |
| title_full | Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes |
| title_fullStr | Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes |
| title_full_unstemmed | Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes |
| title_short | Characterization and performance of porous photocatalytic ceramic membranes coated with TiO2 via different dip-coating routes |
| title_sort | characterization and performance of porous photocatalytic ceramic membranes coated with tio2 via different dip-coating routes |
| topic | T Technology (General) TP1080-1185 Polymers and polymer manufacture |
| url | http://eprints.uthm.edu.my/5567/ http://eprints.uthm.edu.my/5567/1/AJ%202018%20%28223%29.pdf |