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Identifying framework titanium in TS-1 zeolite by UV resonance Raman spectroscopy
Li, C; Xiong, G; Liu, JK; Ying, PL; Xin, Q; Feng, ZC
刊名JOURNAL OF PHYSICAL CHEMISTRY B
2001-04-19
105期:15页:2993-2997
收录类别SCI
文章类型Article
部门归属5064
项目归属503
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]CATALYTIC-OXIDATION ; TI-SILICALITE ; AB-INITIO ; HYDROXYLATION ; SILICATES ; PHENOL ; SITES ; ADSORPTION ; MOLECULES ; SPECTRA
英文摘要Framework titanium in Ti-silicalite-1 (TS-1) zeolite was selectively identified by its resonance Raman bands using ultraviolet (W) Raman spectroscopy. Raman spectra of the TS-1 and silicalite-1 zeolites were obtained and compared using continuous wave laser lines at 244, 325, and 488 nm as the excitation sources. It was only with the excitation at 244 nm that resonance enhanced Raman bands at 490, 530, and 1125 cm(-1) appeared exclusively for the TS-1 zeolite. Furthermore, these bands increased in intensity with the crystallization time of the TS-1 zeolite. The Raman bands at 490, 530, and 1125 cm(-1) are identified as the framework titanium species because they only appeared when the laser excites the charge-transfer transition of the framework titanium species in the TS-1. No resonance Raman enhancement was detected for the bands of silicalite-1 zeolite and for the band at 960 cm(-1) of TS-1 with any of the excitation sources ranging from the visible tb UV regions. This approach can be applicable for the identification of other transition metal ions substituted in the framework of a zeolite or any other molecular sieve.
语种英语
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WOS记录号WOS:000168257700019
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被引频次:101[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/92095
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Li, C,Xiong, G,Liu, JK,et al. Identifying framework titanium in TS-1 zeolite by UV resonance Raman spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2001,105(15):2993-2997.
APA Li, C,Xiong, G,Liu, JK,Ying, PL,Xin, Q,&Feng, ZC.(2001).Identifying framework titanium in TS-1 zeolite by UV resonance Raman spectroscopy.JOURNAL OF PHYSICAL CHEMISTRY B,105(15),2993-2997.
MLA Li, C,et al."Identifying framework titanium in TS-1 zeolite by UV resonance Raman spectroscopy".JOURNAL OF PHYSICAL CHEMISTRY B 105.15(2001):2993-2997.
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