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Article: Study on the synthesis of clay-based titanium silicalite-1 catalytic composite

TitleStudy on the synthesis of clay-based titanium silicalite-1 catalytic composite
Authors
KeywordsAdsorption
Bentonite
Complexation
Dissolution
Gelation
Silicate Minerals
Silicon Compounds
Spectroscopic Analysis
Synthesis (Chemical)
Titanium
Zeolites
Issue Date2009
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/iecr
Citation
Industrial And Engineering Chemistry Research, 2009, v. 48 n. 11, p. 5266-5275 How to Cite?
AbstractA clay-based titanium silicalite-1 (TS-1) catalytic composite was synthesized using hydrothermal treatment to crystallize TS-1 (300-400 nm) on abentonite support. The presence of bentonite is favorable to supported growth attributed to the adsorption properties of the substrate which enhanced the interaction with the dissolved crystallizing species. The rapid crystallization on the bentonite support caused formation of silicalite-1 prior to Ti incorporation. An FT-IR spectroscopic study revealed that the Si defective sites were the exact location at which Ti was bonded. The Ti has been confirmed to exist in the form of a Si-O-Ti bridge instead of a Ti=O group in the clay-based TS-1. The influence of the synthesis temperature, duration, H 2O to SiO 2 molar ratio, and Ti and TPAOH concentrations in the starting gel on the characteristics of the clay-based TS-1 composite were also studied. In addition to the high and stable catalytic activity, the excellent settling efficiency of the clay-based TS-1 composite allowed it to become a reusable catalyst for TS-1-catalyzed processes.
Persistent Identifierhttp://hdl.handle.net/10722/132371
ISSN
2015 Impact Factor: 2.567
2015 SCImago Journal Rankings: 0.976
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China20518001
Research Grants Council of Hong KongN-HKUST620/05
605108
Funding Information:

We acknowledge the financial support from the National Natural Science Foundation of China (Project No. 20518001) and the Research Grants Council of Hong Kong under Grant Nos. N-HKUST620/05 and 605108.

References

 

DC FieldValueLanguage
dc.contributor.authorYip, ACKen_HK
dc.contributor.authorLam, FLYen_HK
dc.contributor.authorHu, Xen_HK
dc.contributor.authorLi, Pen_HK
dc.contributor.authorYuan, WKen_HK
dc.date.accessioned2011-03-28T09:23:48Z-
dc.date.available2011-03-28T09:23:48Z-
dc.date.issued2009en_HK
dc.identifier.citationIndustrial And Engineering Chemistry Research, 2009, v. 48 n. 11, p. 5266-5275en_HK
dc.identifier.issn0888-5885en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132371-
dc.description.abstractA clay-based titanium silicalite-1 (TS-1) catalytic composite was synthesized using hydrothermal treatment to crystallize TS-1 (300-400 nm) on abentonite support. The presence of bentonite is favorable to supported growth attributed to the adsorption properties of the substrate which enhanced the interaction with the dissolved crystallizing species. The rapid crystallization on the bentonite support caused formation of silicalite-1 prior to Ti incorporation. An FT-IR spectroscopic study revealed that the Si defective sites were the exact location at which Ti was bonded. The Ti has been confirmed to exist in the form of a Si-O-Ti bridge instead of a Ti=O group in the clay-based TS-1. The influence of the synthesis temperature, duration, H 2O to SiO 2 molar ratio, and Ti and TPAOH concentrations in the starting gel on the characteristics of the clay-based TS-1 composite were also studied. In addition to the high and stable catalytic activity, the excellent settling efficiency of the clay-based TS-1 composite allowed it to become a reusable catalyst for TS-1-catalyzed processes.en_HK
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/iecren_HK
dc.relation.ispartofIndustrial and Engineering Chemistry Researchen_HK
dc.subjectAdsorptionen_US
dc.subjectBentoniteen_US
dc.subjectComplexationen_US
dc.subjectDissolutionen_US
dc.subjectGelationen_US
dc.subjectSilicate Mineralsen_US
dc.subjectSilicon Compoundsen_US
dc.subjectSpectroscopic Analysisen_US
dc.subjectSynthesis (Chemical)en_US
dc.subjectTitaniumen_US
dc.subjectZeolitesen_US
dc.titleStudy on the synthesis of clay-based titanium silicalite-1 catalytic compositeen_HK
dc.typeArticleen_HK
dc.identifier.emailLam, FLY:kefrank@hku.hken_HK
dc.identifier.authorityLam, FLY=rp01470en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/ie9002798en_HK
dc.identifier.scopuseid_2-s2.0-67449123769en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67449123769&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume48en_HK
dc.identifier.issue11en_HK
dc.identifier.spage5266en_HK
dc.identifier.epage5275en_HK
dc.identifier.isiWOS:000266480500013-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYip, ACK=8956194800en_HK
dc.identifier.scopusauthoridLam, FLY=7102075931en_HK
dc.identifier.scopusauthoridHu, X=7404709975en_HK
dc.identifier.scopusauthoridLi, P=35069715100en_HK
dc.identifier.scopusauthoridYuan, WK=7201517359en_HK

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