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Article: Microscopic characterization of FO/PRO membranes - A comparative study of CLSM, TEM and SEM

TitleMicroscopic characterization of FO/PRO membranes - A comparative study of CLSM, TEM and SEM
Authors
Issue Date2012
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/est
Citation
Environmental Science And Technology, 2012, v. 46 n. 18, p. 9995-10003 How to Cite?
AbstractOsmotically driven membrane processes (including forward osmosis (FO) and pressure retarded osmosis (PRO)) have received increasing attention in recent decades. The performance of an FO/PRO membrane is significantly limited by internal concentration polarization, which is a strong function of the membrane support layer pore structure. The objective of the current study was to develop microscopic characterization methods for quantitative/semiquantitative analysis of membrane pore structure (both pore diameter and porosity distribution across membrane thickness). The use of confocal laser scanning microscopy (CLSM) for noninvasive characterization of the internal pore structure of FO/PRO membranes is reported for the first time. By performing optical sectioning, information on pore diameter, porosity depth profile and pore connectivity can be obtained. The CLSM porosity results are further compared to those obtained using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and reasonably good agreement was observed. A comparison of these characterization methods reveals their complementary nature, and a combination of these techniques may allow a more comprehensive understanding of membrane structure. The current study also provided a comprehensive insight into the pore structure of commercially available FO/PRO membranes. © 2012 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/185431
ISSN
2015 Impact Factor: 5.393
2015 SCImago Journal Rankings: 2.664
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, YNen_US
dc.contributor.authorWei, Jen_US
dc.contributor.authorShe, Qen_US
dc.contributor.authorPacheco, Fen_US
dc.contributor.authorTang, CYen_US
dc.date.accessioned2013-07-30T07:32:28Z-
dc.date.available2013-07-30T07:32:28Z-
dc.date.issued2012en_US
dc.identifier.citationEnvironmental Science And Technology, 2012, v. 46 n. 18, p. 9995-10003en_US
dc.identifier.issn0013-936Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/185431-
dc.description.abstractOsmotically driven membrane processes (including forward osmosis (FO) and pressure retarded osmosis (PRO)) have received increasing attention in recent decades. The performance of an FO/PRO membrane is significantly limited by internal concentration polarization, which is a strong function of the membrane support layer pore structure. The objective of the current study was to develop microscopic characterization methods for quantitative/semiquantitative analysis of membrane pore structure (both pore diameter and porosity distribution across membrane thickness). The use of confocal laser scanning microscopy (CLSM) for noninvasive characterization of the internal pore structure of FO/PRO membranes is reported for the first time. By performing optical sectioning, information on pore diameter, porosity depth profile and pore connectivity can be obtained. The CLSM porosity results are further compared to those obtained using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and reasonably good agreement was observed. A comparison of these characterization methods reveals their complementary nature, and a combination of these techniques may allow a more comprehensive understanding of membrane structure. The current study also provided a comprehensive insight into the pore structure of commercially available FO/PRO membranes. © 2012 American Chemical Society.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/esten_US
dc.relation.ispartofEnvironmental Science and Technologyen_US
dc.subject.meshMembranes, Artificialen_US
dc.subject.meshMicroscopy, Confocalen_US
dc.subject.meshMicroscopy, Electron, Scanningen_US
dc.subject.meshMicroscopy, Electron, Transmissionen_US
dc.subject.meshOsmosisen_US
dc.subject.meshOsmotic Pressureen_US
dc.subject.meshPorosityen_US
dc.titleMicroscopic characterization of FO/PRO membranes - A comparative study of CLSM, TEM and SEMen_US
dc.typeArticleen_US
dc.identifier.emailTang, CY: tangc@hku.hken_US
dc.identifier.authorityTang, CY=rp01765en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/es301885men_US
dc.identifier.pmid22897436en_US
dc.identifier.scopuseid_2-s2.0-84866382209en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84866382209&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume46en_US
dc.identifier.issue18en_US
dc.identifier.spage9995en_US
dc.identifier.epage10003en_US
dc.identifier.isiWOS:000308787800023-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWang, YN=35076853300en_US
dc.identifier.scopusauthoridWei, J=55360900400en_US
dc.identifier.scopusauthoridShe, Q=34868602200en_US
dc.identifier.scopusauthoridPacheco, F=55182776200en_US
dc.identifier.scopusauthoridTang, CY=35489259800en_US

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