Molecular Recognitive Photocatalysis Driven by the Selective Adsorption on Layered Titanates.
The composition of layered alkali titanates (MTiLiO M = K, Li, Na was tuned to control the swelling of the titanates in water and subsequently achieve molecular-sieve-like molecular recognitive photocatalytic decomposition of aqueous organic compounds on the titanates. Layered potassium lithium tita...
| Publicado en: | Journal of the American Chemical Society Vol. 132; no. 10; pp. 3601 - 3605 |
|---|---|
| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
3/17/2010
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=48808428&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 48808428 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 3/17/2010 vid: 132 iid: 10 pid: 997 pub: American Chemical Society artinfo: ui: 48808428 10.1021/ja910591v ppf: 3601 ppct: 4 formats: tig: atl: Molecular Recognitive Photocatalysis Driven by the Selective Adsorption on Layered Titanates. aug: au: Ide, Yusuke Nakasato, Yuri Ogawa, Makoto affil: Department of Earth Sciences, Waseda University, 1-6-1 Nishiwaseda, Shinjyuku-ku, Tokyo 169-8050, Japan su: Titanates Photocatalysis Adsorption (Chemistry) Organic compounds X-ray diffraction Potassium Hydration sug: subj: Titanates Photocatalysis Adsorption (Chemistry) Organic compounds X-ray diffraction Potassium Hydration ab: The composition of layered alkali titanates (MTiLiO M = K, Li, Na was tuned to control the swelling of the titanates in water and subsequently achieve molecular-sieve-like molecular recognitive photocatalytic decomposition of aqueous organic compounds on the titanates. Layered potassium lithium titanates with different layer charge density, KTiLiO (x = 0.61, 0.67, and 0.74), was first synthesized and then the interlayer K~ was quantitatively exchanged with Li- and Na to form LiTiLiO (x = 0.61, 0.67, and 0.76) and NaTiLiO (x = 0.61, 0.67, and 0.76). The water adsorption! desorption isotherms and X-ray diffraction patterns of the titanates revealed that the pristine K-type titanates hardly hydrated, while the Li- and Na-exchanged titanates expanded the interlayer space upon the hydration and the degree in the hydration was larger for the Na forms than for the Li ones and depended on the layer charge density. The present titanates were found to selectively adsorb benzene from an aqueous mixture of benzene, phenol, and 4-butylphenol and subsequently decompose benzene upon UV irradiation. The efficiency of the molecular recognitive photocatalytic benzene decomposition was related to the degree in the swelling of the titanates in water. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2010 holdings: @attributes: islocal: N |
|---|