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Article: Study on the synthesis of clay-based titanium silicalite-1 catalytic composite
Title | Study on the synthesis of clay-based titanium silicalite-1 catalytic composite | ||||||
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Authors | |||||||
Keywords | Adsorption Bentonite Complexation Dissolution Gelation Silicate Minerals Silicon Compounds Spectroscopic Analysis Synthesis (Chemical) Titanium Zeolites | ||||||
Issue Date | 2009 | ||||||
Publisher | American 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? | ||||||
Abstract | A 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 Identifier | http://hdl.handle.net/10722/132371 | ||||||
ISSN | 2023 Impact Factor: 3.8 2023 SCImago Journal Rankings: 0.811 | ||||||
ISI Accession Number ID |
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 Field | Value | Language |
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dc.contributor.author | Yip, ACK | en_HK |
dc.contributor.author | Lam, FLY | en_HK |
dc.contributor.author | Hu, X | en_HK |
dc.contributor.author | Li, P | en_HK |
dc.contributor.author | Yuan, WK | en_HK |
dc.date.accessioned | 2011-03-28T09:23:48Z | - |
dc.date.available | 2011-03-28T09:23:48Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Industrial And Engineering Chemistry Research, 2009, v. 48 n. 11, p. 5266-5275 | en_HK |
dc.identifier.issn | 0888-5885 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/132371 | - |
dc.description.abstract | A 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.language | eng | en_US |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/iecr | en_HK |
dc.relation.ispartof | Industrial and Engineering Chemistry Research | en_HK |
dc.subject | Adsorption | en_US |
dc.subject | Bentonite | en_US |
dc.subject | Complexation | en_US |
dc.subject | Dissolution | en_US |
dc.subject | Gelation | en_US |
dc.subject | Silicate Minerals | en_US |
dc.subject | Silicon Compounds | en_US |
dc.subject | Spectroscopic Analysis | en_US |
dc.subject | Synthesis (Chemical) | en_US |
dc.subject | Titanium | en_US |
dc.subject | Zeolites | en_US |
dc.title | Study on the synthesis of clay-based titanium silicalite-1 catalytic composite | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Lam, FLY:kefrank@hku.hk | en_HK |
dc.identifier.authority | Lam, FLY=rp01470 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1021/ie9002798 | en_HK |
dc.identifier.scopus | eid_2-s2.0-67449123769 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-67449123769&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 48 | en_HK |
dc.identifier.issue | 11 | en_HK |
dc.identifier.spage | 5266 | en_HK |
dc.identifier.epage | 5275 | en_HK |
dc.identifier.isi | WOS:000266480500013 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Yip, ACK=8956194800 | en_HK |
dc.identifier.scopusauthorid | Lam, FLY=7102075931 | en_HK |
dc.identifier.scopusauthorid | Hu, X=7404709975 | en_HK |
dc.identifier.scopusauthorid | Li, P=35069715100 | en_HK |
dc.identifier.scopusauthorid | Yuan, WK=7201517359 | en_HK |
dc.identifier.issnl | 0888-5885 | - |