Microporous Silica Based Membranes for Desalination
This review provides a global overview of microporous silica based membranes for desalination via pervaporation with a focus on membrane synthesis and processing, transport mechanisms and current state of the art membrane performance. Most importantly, the recent development and novel concepts for i...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2012-09-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2073-4441/4/3/629 |
| _version_ | 1811255903118163968 |
|---|---|
| author | João C. Diniz da Costa Simon Smart David K. Wang Christelle Yacou Muthia Elma |
| author_facet | João C. Diniz da Costa Simon Smart David K. Wang Christelle Yacou Muthia Elma |
| author_sort | João C. Diniz da Costa |
| collection | DOAJ |
| description | This review provides a global overview of microporous silica based membranes for desalination via pervaporation with a focus on membrane synthesis and processing, transport mechanisms and current state of the art membrane performance. Most importantly, the recent development and novel concepts for improving the hydro-stability and separating performance of silica membranes for desalination are critically examined. Research into silica based membranes for desalination has focussed on three primary methods for improving the hydro-stability. These include incorporating carbon templates into the microporous silica both as surfactants and hybrid organic-inorganic structures and incorporation of metal oxide nanoparticles into the silica matrix. The literature examined identified that only metal oxide silica membranes have demonstrated high salt rejections under a variety of feed concentrations, reasonable fluxes and unaltered performance over long-term operation. As this is an embryonic field of research several target areas for researchers were discussed including further improvement of the membrane materials, but also regarding the necessity of integrating waste or solar heat sources into the final process design to ensure cost competitiveness with conventional reverse osmosis processes. |
| first_indexed | 2024-04-12T17:32:01Z |
| format | Article |
| id | doaj.art-4e29de66354a4a99ab8e32331b045912 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-12T17:32:01Z |
| publishDate | 2012-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-4e29de66354a4a99ab8e32331b0459122022-12-22T03:23:07ZengMDPI AGWater2073-44412012-09-014362964910.3390/w4030629Microporous Silica Based Membranes for DesalinationJoão C. Diniz da CostaSimon SmartDavid K. WangChristelle YacouMuthia ElmaThis review provides a global overview of microporous silica based membranes for desalination via pervaporation with a focus on membrane synthesis and processing, transport mechanisms and current state of the art membrane performance. Most importantly, the recent development and novel concepts for improving the hydro-stability and separating performance of silica membranes for desalination are critically examined. Research into silica based membranes for desalination has focussed on three primary methods for improving the hydro-stability. These include incorporating carbon templates into the microporous silica both as surfactants and hybrid organic-inorganic structures and incorporation of metal oxide nanoparticles into the silica matrix. The literature examined identified that only metal oxide silica membranes have demonstrated high salt rejections under a variety of feed concentrations, reasonable fluxes and unaltered performance over long-term operation. As this is an embryonic field of research several target areas for researchers were discussed including further improvement of the membrane materials, but also regarding the necessity of integrating waste or solar heat sources into the final process design to ensure cost competitiveness with conventional reverse osmosis processes.http://www.mdpi.com/2073-4441/4/3/629desalinationpervaporationmicroporous silicametal oxide silicahybrid silicacarbon template silica |
| spellingShingle | João C. Diniz da Costa Simon Smart David K. Wang Christelle Yacou Muthia Elma Microporous Silica Based Membranes for Desalination Water desalination pervaporation microporous silica metal oxide silica hybrid silica carbon template silica |
| title | Microporous Silica Based Membranes for Desalination |
| title_full | Microporous Silica Based Membranes for Desalination |
| title_fullStr | Microporous Silica Based Membranes for Desalination |
| title_full_unstemmed | Microporous Silica Based Membranes for Desalination |
| title_short | Microporous Silica Based Membranes for Desalination |
| title_sort | microporous silica based membranes for desalination |
| topic | desalination pervaporation microporous silica metal oxide silica hybrid silica carbon template silica |
| url | http://www.mdpi.com/2073-4441/4/3/629 |
| work_keys_str_mv | AT joaocdinizdacosta microporoussilicabasedmembranesfordesalination AT simonsmart microporoussilicabasedmembranesfordesalination AT davidkwang microporoussilicabasedmembranesfordesalination AT christelleyacou microporoussilicabasedmembranesfordesalination AT muthiaelma microporoussilicabasedmembranesfordesalination |