Production and characterization of durable self‐cleaning and engineering porous Al 2 O 3 /CaAl 12 O 19 ceramic membranes
The rapid development of engineering filtering process suggests that it is imperative to produce membrane substrates with a fine pore size, high gas permeation, and antifouling properties for efficient and long‐term application. This study reports on a novel fabrication method of a porous Al 2 O 3 /...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2019-07, Vol.102 (7), p.3879-3886 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Dong, Binbin Yang, Mingye Wang, Feihong Wang, JunWei Hao, LuYuan Xu, Xin Wang, Gang Agathopoulos, Simeon |
| description | The rapid development of engineering filtering process suggests that it is imperative to produce membrane substrates with a fine pore size, high gas permeation, and antifouling properties for efficient and long‐term application. This study reports on a novel fabrication method of a porous Al
2
O
3
/CaAl
12
O
19
ceramic membrane substrate by a direct foaming method combined with cement solidification and tape‐casting technology. The microstructure of the produced ceramic membrane consisted of pores with a size of 50‐150 μm, which were interconnected with each other with a large number of small filtering functional pores of |
| doi_str_mv | 10.1111/jace.16274 |
| format | Article |
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2
O
3
/CaAl
12
O
19
ceramic membrane substrate by a direct foaming method combined with cement solidification and tape‐casting technology. The microstructure of the produced ceramic membrane consisted of pores with a size of 50‐150 μm, which were interconnected with each other with a large number of small filtering functional pores of <10 μm. By increasing the amount of the foaming agent, the porosity of the porous Al
2
O
3
/CaAl
12
O
19
ceramic membranes was tailored from 64.8% to 80.5%, and the bending strength decreased from 32.1 ± 1.0 to 9.6 ± 0.9 MPa, respectively. The sintered hydrophilic ceramic substrate was successfully modified to a hydrophobic one (with water contact angles of 143°) by pyrolysis of dimethyldichlorosilane and dichloromethylsilane. The resultant membrane displayed high chemical stability and self‐cleaning features. The membrane with a porosity of 64.8% had a N
2
permeation of 3.0 (±0.5) × 10
7
L m
−2
h
−1
at 0.5 bar and a water flux which could be totally suppressed at a liquid entry pressure of 0.45 bar.</description><identifier>ISSN: 0002-7820</identifier><identifier>EISSN: 1551-2916</identifier><identifier>DOI: 10.1111/jace.16274</identifier><language>eng</language><ispartof>Journal of the American Ceramic Society, 2019-07, Vol.102 (7), p.3879-3886</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c146t-44673367f968b2ee80988e0c37292a2a47b05b649539dc34e7a9c4785f2938cb3</citedby><cites>FETCH-LOGICAL-c146t-44673367f968b2ee80988e0c37292a2a47b05b649539dc34e7a9c4785f2938cb3</cites><orcidid>0000-0001-6547-255X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27928,27929</link.rule.ids></links><search><creatorcontrib>Dong, Binbin</creatorcontrib><creatorcontrib>Yang, Mingye</creatorcontrib><creatorcontrib>Wang, Feihong</creatorcontrib><creatorcontrib>Wang, JunWei</creatorcontrib><creatorcontrib>Hao, LuYuan</creatorcontrib><creatorcontrib>Xu, Xin</creatorcontrib><creatorcontrib>Wang, Gang</creatorcontrib><creatorcontrib>Agathopoulos, Simeon</creatorcontrib><title>Production and characterization of durable self‐cleaning and engineering porous Al 2 O 3 /CaAl 12 O 19 ceramic membranes</title><title>Journal of the American Ceramic Society</title><description>The rapid development of engineering filtering process suggests that it is imperative to produce membrane substrates with a fine pore size, high gas permeation, and antifouling properties for efficient and long‐term application. This study reports on a novel fabrication method of a porous Al
2
O
3
/CaAl
12
O
19
ceramic membrane substrate by a direct foaming method combined with cement solidification and tape‐casting technology. The microstructure of the produced ceramic membrane consisted of pores with a size of 50‐150 μm, which were interconnected with each other with a large number of small filtering functional pores of <10 μm. By increasing the amount of the foaming agent, the porosity of the porous Al
2
O
3
/CaAl
12
O
19
ceramic membranes was tailored from 64.8% to 80.5%, and the bending strength decreased from 32.1 ± 1.0 to 9.6 ± 0.9 MPa, respectively. The sintered hydrophilic ceramic substrate was successfully modified to a hydrophobic one (with water contact angles of 143°) by pyrolysis of dimethyldichlorosilane and dichloromethylsilane. The resultant membrane displayed high chemical stability and self‐cleaning features. The membrane with a porosity of 64.8% had a N
2
permeation of 3.0 (±0.5) × 10
7
L m
−2
h
−1
at 0.5 bar and a water flux which could be totally suppressed at a liquid entry pressure of 0.45 bar.</description><issn>0002-7820</issn><issn>1551-2916</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNotkLtOw0AQRVcIJEKg4Qu2RnKyL--jjCIgSJFCAbU1Xo-DI3sd7cYFqfgEvpEvwQlMM3OurqY4hNxzNuPjzHfgcca1MOqCTHie80w4ri_JhDEmMmMFuyY3Ke1G5M6qCTm-xr4a_KHpA4VQUf8BEfwBY3OEc9jXtBoilC3ShG398_XtW4TQhO25j2HbBBzrI-_72A-JLloq6IZKOl_CePMTcEc9RugaTzvsyggB0y25qqFNePe_p-T96fFtucrWm-eX5WKdea70IVNKGym1qZ22pUC0zFmLzEsjnAABypQsL7VyuXSVlwoNOK-MzWvhpPWlnJKHv78-9ilFrIt9bDqInwVnxclacbJWnK3JXydEX8k</recordid><startdate>201907</startdate><enddate>201907</enddate><creator>Dong, Binbin</creator><creator>Yang, Mingye</creator><creator>Wang, Feihong</creator><creator>Wang, JunWei</creator><creator>Hao, LuYuan</creator><creator>Xu, Xin</creator><creator>Wang, Gang</creator><creator>Agathopoulos, Simeon</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-6547-255X</orcidid></search><sort><creationdate>201907</creationdate><title>Production and characterization of durable self‐cleaning and engineering porous Al 2 O 3 /CaAl 12 O 19 ceramic membranes</title><author>Dong, Binbin ; Yang, Mingye ; Wang, Feihong ; Wang, JunWei ; Hao, LuYuan ; Xu, Xin ; Wang, Gang ; Agathopoulos, Simeon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c146t-44673367f968b2ee80988e0c37292a2a47b05b649539dc34e7a9c4785f2938cb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dong, Binbin</creatorcontrib><creatorcontrib>Yang, Mingye</creatorcontrib><creatorcontrib>Wang, Feihong</creatorcontrib><creatorcontrib>Wang, JunWei</creatorcontrib><creatorcontrib>Hao, LuYuan</creatorcontrib><creatorcontrib>Xu, Xin</creatorcontrib><creatorcontrib>Wang, Gang</creatorcontrib><creatorcontrib>Agathopoulos, Simeon</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of the American Ceramic Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dong, Binbin</au><au>Yang, Mingye</au><au>Wang, Feihong</au><au>Wang, JunWei</au><au>Hao, LuYuan</au><au>Xu, Xin</au><au>Wang, Gang</au><au>Agathopoulos, Simeon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Production and characterization of durable self‐cleaning and engineering porous Al 2 O 3 /CaAl 12 O 19 ceramic membranes</atitle><jtitle>Journal of the American Ceramic Society</jtitle><date>2019-07</date><risdate>2019</risdate><volume>102</volume><issue>7</issue><spage>3879</spage><epage>3886</epage><pages>3879-3886</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><abstract>The rapid development of engineering filtering process suggests that it is imperative to produce membrane substrates with a fine pore size, high gas permeation, and antifouling properties for efficient and long‐term application. This study reports on a novel fabrication method of a porous Al
2
O
3
/CaAl
12
O
19
ceramic membrane substrate by a direct foaming method combined with cement solidification and tape‐casting technology. The microstructure of the produced ceramic membrane consisted of pores with a size of 50‐150 μm, which were interconnected with each other with a large number of small filtering functional pores of <10 μm. By increasing the amount of the foaming agent, the porosity of the porous Al
2
O
3
/CaAl
12
O
19
ceramic membranes was tailored from 64.8% to 80.5%, and the bending strength decreased from 32.1 ± 1.0 to 9.6 ± 0.9 MPa, respectively. The sintered hydrophilic ceramic substrate was successfully modified to a hydrophobic one (with water contact angles of 143°) by pyrolysis of dimethyldichlorosilane and dichloromethylsilane. The resultant membrane displayed high chemical stability and self‐cleaning features. The membrane with a porosity of 64.8% had a N
2
permeation of 3.0 (±0.5) × 10
7
L m
−2
h
−1
at 0.5 bar and a water flux which could be totally suppressed at a liquid entry pressure of 0.45 bar.</abstract><doi>10.1111/jace.16274</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-6547-255X</orcidid></addata></record> |
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| ispartof | Journal of the American Ceramic Society, 2019-07, Vol.102 (7), p.3879-3886 |
| issn | 0002-7820 1551-2916 |
| language | eng |
| recordid | cdi_crossref_primary_10_1111_jace_16274 |
| source | Access via Wiley Online Library |
| title | Production and characterization of durable self‐cleaning and engineering porous Al 2 O 3 /CaAl 12 O 19 ceramic membranes |
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