Sol–gel derived poly(vinyl alcohol)/maleic acid/silica hybrid membrane for desalination by pervaporation
► Novel PVA/MA/silica hybrid membranes has been synthesised via a sol–gel route and a solution casting method. ► Swelling of the hybrid membranes was significantly suppressed with improved thermal properties. ► Pervaporation separation of NaCl solution achieved a high water flux of 6.93 kg/m 2 h and...
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| Veröffentlicht in: | Journal of membrane science 2011-11, Vol.383 (1), p.96-103 |
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| container_title | Journal of membrane science |
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| creator | Xie, Zongli Hoang, Manh Duong, Tuan Ng, Derrick Dao, Buu Gray, Stephen |
| description | ► Novel PVA/MA/silica hybrid membranes has been synthesised via a sol–gel route and a solution casting method. ► Swelling of the hybrid membranes was significantly suppressed with improved thermal properties. ► Pervaporation separation of NaCl solution achieved a high water flux of 6.93
kg/m
2
h and salt rejection >
99.5% at a 6 Torr vacuum and 22
̊C. ► Pervaporation properties of hybrid PVA/MA/silica membranes were directly related to the diffusion of water through the membranes.
Highly dispersed homogeneous hybrid polymer–inorganic membranes based on poly(vinyl alcohol) (PVA), maleic acid (MA) and inorganic silica were synthesized via a sol–gel method. Tetraethoxy-silane (TEOS) was used as the silica precursor with MA as an additional crosslinking agent. A range of techniques such as FTIR, SEM, TGA, XRD and DSC were used to characterise the nanostructure and properties of hybrid membranes. Results revealed silica nanoparticles (99.5% was achieved at a 6
Torr vacuum and 22
°C. |
| doi_str_mv | 10.1016/j.memsci.2011.08.036 |
| format | Article |
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kg/m
2
h and salt rejection >
99.5% at a 6 Torr vacuum and 22
̊C. ► Pervaporation properties of hybrid PVA/MA/silica membranes were directly related to the diffusion of water through the membranes.
Highly dispersed homogeneous hybrid polymer–inorganic membranes based on poly(vinyl alcohol) (PVA), maleic acid (MA) and inorganic silica were synthesized via a sol–gel method. Tetraethoxy-silane (TEOS) was used as the silica precursor with MA as an additional crosslinking agent. A range of techniques such as FTIR, SEM, TGA, XRD and DSC were used to characterise the nanostructure and properties of hybrid membranes. Results revealed silica nanoparticles (<10
nm) were well dispersed in the polymer matrix with chemical bonding between the organic and inorganic phases. Thermal properties of the hybrid membranes were significantly enhanced when compared with pure PVA membranes, and swelling of PVA based hybrid membranes was greatly suppressed.
The chemically crosslinked PVA with maleic acid and silica resulted in the formation of new hybrid membranes with improved pervaporation properties for desalination application. The pervaporation separation performance of aqueous salt solution was found to be directly related to the diffusion coefficient of water through hybrid PVA/MA/silica membranes. Introduction of MA and silica at given amounts into the polymer chain increased the amorphous region of the membrane and favoured the diffusion of water molecules through the membrane. A water flux of 6.93
kg/m
2
h with salt rejection of >99.5% was achieved at a 6
Torr vacuum and 22
°C.</description><identifier>ISSN: 0376-7388</identifier><identifier>EISSN: 1873-3123</identifier><identifier>DOI: 10.1016/j.memsci.2011.08.036</identifier><identifier>CODEN: JMESDO</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>alcohols ; artificial membranes ; chemical bonding ; Chemistry ; Colloidal gels. Colloidal sols ; Colloidal state and disperse state ; crosslinking ; Desalination ; diffusivity ; Exact sciences and technology ; Fourier transform infrared spectroscopy ; General and physical chemistry ; Hybrid organic–inorganic membrane ; Maleic acid ; Membranes ; nanoparticles ; pervaporation ; Physical and chemical studies. Granulometry. Electrokinetic phenomena ; Poly(vinyl alcohol) ; polyvinyl alcohol ; scanning electron microscopy ; Silica ; sol-gel processing ; Sol–gel ; thermal properties ; X-ray diffraction</subject><ispartof>Journal of membrane science, 2011-11, Vol.383 (1), p.96-103</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c439t-c6e7c84c2473dcc2fefb012af7d40e573b265a716981be29cabc10c0bc70dfe83</citedby><cites>FETCH-LOGICAL-c439t-c6e7c84c2473dcc2fefb012af7d40e573b265a716981be29cabc10c0bc70dfe83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.memsci.2011.08.036$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24622902$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Xie, Zongli</creatorcontrib><creatorcontrib>Hoang, Manh</creatorcontrib><creatorcontrib>Duong, Tuan</creatorcontrib><creatorcontrib>Ng, Derrick</creatorcontrib><creatorcontrib>Dao, Buu</creatorcontrib><creatorcontrib>Gray, Stephen</creatorcontrib><title>Sol–gel derived poly(vinyl alcohol)/maleic acid/silica hybrid membrane for desalination by pervaporation</title><title>Journal of membrane science</title><description>► Novel PVA/MA/silica hybrid membranes has been synthesised via a sol–gel route and a solution casting method. ► Swelling of the hybrid membranes was significantly suppressed with improved thermal properties. ► Pervaporation separation of NaCl solution achieved a high water flux of 6.93
kg/m
2
h and salt rejection >
99.5% at a 6 Torr vacuum and 22
̊C. ► Pervaporation properties of hybrid PVA/MA/silica membranes were directly related to the diffusion of water through the membranes.
Highly dispersed homogeneous hybrid polymer–inorganic membranes based on poly(vinyl alcohol) (PVA), maleic acid (MA) and inorganic silica were synthesized via a sol–gel method. Tetraethoxy-silane (TEOS) was used as the silica precursor with MA as an additional crosslinking agent. A range of techniques such as FTIR, SEM, TGA, XRD and DSC were used to characterise the nanostructure and properties of hybrid membranes. Results revealed silica nanoparticles (<10
nm) were well dispersed in the polymer matrix with chemical bonding between the organic and inorganic phases. Thermal properties of the hybrid membranes were significantly enhanced when compared with pure PVA membranes, and swelling of PVA based hybrid membranes was greatly suppressed.
The chemically crosslinked PVA with maleic acid and silica resulted in the formation of new hybrid membranes with improved pervaporation properties for desalination application. The pervaporation separation performance of aqueous salt solution was found to be directly related to the diffusion coefficient of water through hybrid PVA/MA/silica membranes. Introduction of MA and silica at given amounts into the polymer chain increased the amorphous region of the membrane and favoured the diffusion of water molecules through the membrane. A water flux of 6.93
kg/m
2
h with salt rejection of >99.5% was achieved at a 6
Torr vacuum and 22
°C.</description><subject>alcohols</subject><subject>artificial membranes</subject><subject>chemical bonding</subject><subject>Chemistry</subject><subject>Colloidal gels. Colloidal sols</subject><subject>Colloidal state and disperse state</subject><subject>crosslinking</subject><subject>Desalination</subject><subject>diffusivity</subject><subject>Exact sciences and technology</subject><subject>Fourier transform infrared spectroscopy</subject><subject>General and physical chemistry</subject><subject>Hybrid organic–inorganic membrane</subject><subject>Maleic acid</subject><subject>Membranes</subject><subject>nanoparticles</subject><subject>pervaporation</subject><subject>Physical and chemical studies. Granulometry. Electrokinetic phenomena</subject><subject>Poly(vinyl alcohol)</subject><subject>polyvinyl alcohol</subject><subject>scanning electron microscopy</subject><subject>Silica</subject><subject>sol-gel processing</subject><subject>Sol–gel</subject><subject>thermal properties</subject><subject>X-ray diffraction</subject><issn>0376-7388</issn><issn>1873-3123</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kMFq3DAQhk1podu0b1CoL4X0YO9Iciz5UiihTQKBHtKchTweJVpky5U2C77lHfKGfZJq65BjTwPDN___z18UHxnUDFi73dUjjQldzYGxGlQNon1VbJiSohKMi9fFBoRsKymUelu8S2kHwCSoblPsboL_8_h0R74cKLoDDeUc_HJ6cNPiS-Mx3Af_ZTsaTw5Lg27YJucdmvJ-6aMbyuzcRzNRaUPMEsl4N5m9C1PZL-VM8WDmEP8t3hdvrPGJPjzPk-L2x_df55fV9c-Lq_Nv1xU2ottX2JJE1SBvpBgQuSXbA-PGyqEBOpOi5-2ZkaztFOuJd2h6ZIDQo4TBkhInxemqO8fw-4HSXo8uIXmfU4aHpBnnjDUtgMhos6IYQ0qRrJ6jG01cNAN9rFbv9FqtPlarQelcbT77_OxgEhpv8__o0sstb1rOO-CZ-7Ry1gRt7mJmbm-yUPYGBbI9Bvi6EpQLOTiKOnvRhDS4SLjXQ3D_j_IXK7KdSA</recordid><startdate>20111101</startdate><enddate>20111101</enddate><creator>Xie, Zongli</creator><creator>Hoang, Manh</creator><creator>Duong, Tuan</creator><creator>Ng, Derrick</creator><creator>Dao, Buu</creator><creator>Gray, Stephen</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>20111101</creationdate><title>Sol–gel derived poly(vinyl alcohol)/maleic acid/silica hybrid membrane for desalination by pervaporation</title><author>Xie, Zongli ; Hoang, Manh ; Duong, Tuan ; Ng, Derrick ; Dao, Buu ; Gray, Stephen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c439t-c6e7c84c2473dcc2fefb012af7d40e573b265a716981be29cabc10c0bc70dfe83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>alcohols</topic><topic>artificial membranes</topic><topic>chemical bonding</topic><topic>Chemistry</topic><topic>Colloidal gels. Colloidal sols</topic><topic>Colloidal state and disperse state</topic><topic>crosslinking</topic><topic>Desalination</topic><topic>diffusivity</topic><topic>Exact sciences and technology</topic><topic>Fourier transform infrared spectroscopy</topic><topic>General and physical chemistry</topic><topic>Hybrid organic–inorganic membrane</topic><topic>Maleic acid</topic><topic>Membranes</topic><topic>nanoparticles</topic><topic>pervaporation</topic><topic>Physical and chemical studies. Granulometry. Electrokinetic phenomena</topic><topic>Poly(vinyl alcohol)</topic><topic>polyvinyl alcohol</topic><topic>scanning electron microscopy</topic><topic>Silica</topic><topic>sol-gel processing</topic><topic>Sol–gel</topic><topic>thermal properties</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xie, Zongli</creatorcontrib><creatorcontrib>Hoang, Manh</creatorcontrib><creatorcontrib>Duong, Tuan</creatorcontrib><creatorcontrib>Ng, Derrick</creatorcontrib><creatorcontrib>Dao, Buu</creatorcontrib><creatorcontrib>Gray, Stephen</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of membrane science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xie, Zongli</au><au>Hoang, Manh</au><au>Duong, Tuan</au><au>Ng, Derrick</au><au>Dao, Buu</au><au>Gray, Stephen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sol–gel derived poly(vinyl alcohol)/maleic acid/silica hybrid membrane for desalination by pervaporation</atitle><jtitle>Journal of membrane science</jtitle><date>2011-11-01</date><risdate>2011</risdate><volume>383</volume><issue>1</issue><spage>96</spage><epage>103</epage><pages>96-103</pages><issn>0376-7388</issn><eissn>1873-3123</eissn><coden>JMESDO</coden><abstract>► Novel PVA/MA/silica hybrid membranes has been synthesised via a sol–gel route and a solution casting method. ► Swelling of the hybrid membranes was significantly suppressed with improved thermal properties. ► Pervaporation separation of NaCl solution achieved a high water flux of 6.93
kg/m
2
h and salt rejection >
99.5% at a 6 Torr vacuum and 22
̊C. ► Pervaporation properties of hybrid PVA/MA/silica membranes were directly related to the diffusion of water through the membranes.
Highly dispersed homogeneous hybrid polymer–inorganic membranes based on poly(vinyl alcohol) (PVA), maleic acid (MA) and inorganic silica were synthesized via a sol–gel method. Tetraethoxy-silane (TEOS) was used as the silica precursor with MA as an additional crosslinking agent. A range of techniques such as FTIR, SEM, TGA, XRD and DSC were used to characterise the nanostructure and properties of hybrid membranes. Results revealed silica nanoparticles (<10
nm) were well dispersed in the polymer matrix with chemical bonding between the organic and inorganic phases. Thermal properties of the hybrid membranes were significantly enhanced when compared with pure PVA membranes, and swelling of PVA based hybrid membranes was greatly suppressed.
The chemically crosslinked PVA with maleic acid and silica resulted in the formation of new hybrid membranes with improved pervaporation properties for desalination application. The pervaporation separation performance of aqueous salt solution was found to be directly related to the diffusion coefficient of water through hybrid PVA/MA/silica membranes. Introduction of MA and silica at given amounts into the polymer chain increased the amorphous region of the membrane and favoured the diffusion of water molecules through the membrane. A water flux of 6.93
kg/m
2
h with salt rejection of >99.5% was achieved at a 6
Torr vacuum and 22
°C.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.memsci.2011.08.036</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of membrane science, 2011-11, Vol.383 (1), p.96-103 |
| issn | 0376-7388 1873-3123 |
| language | eng |
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| subjects | alcohols artificial membranes chemical bonding Chemistry Colloidal gels. Colloidal sols Colloidal state and disperse state crosslinking Desalination diffusivity Exact sciences and technology Fourier transform infrared spectroscopy General and physical chemistry Hybrid organic–inorganic membrane Maleic acid Membranes nanoparticles pervaporation Physical and chemical studies. Granulometry. Electrokinetic phenomena Poly(vinyl alcohol) polyvinyl alcohol scanning electron microscopy Silica sol-gel processing Sol–gel thermal properties X-ray diffraction |
| title | Sol–gel derived poly(vinyl alcohol)/maleic acid/silica hybrid membrane for desalination by pervaporation |
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