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论文类型：期刊论文

发表时间：2009-08-15

发表刊物：MATERIALS LETTERS

收录刊物：SCIE、EI

卷号：63

期号：20

页面范围：1743-1746

ISSN号：0167-577X

关键字：Titanium dioxide; ZSM-5 crystal; Luminescence; Optical materials and properties

摘要：ZSM-5 crystals, of which granule size is about 120 pm along c axis, are employed as a good host material for TiO2 loading. Optical microscopy photographs, X-ray powder diffraction spectra and surface area calculated from nitrogen adsorption data at -196 degrees C have been carried out and show that the titanium dioxide clusters are infiltrating into the pores of ZSM-5. TiO2/ZSM-5 host-guest material, regardless of whether being prepared by microwave and water bath heating, shows similar features except for the TiO2 contents. The materials have a photoluminescence emission peak at 2.85 eV, which is ascribed to the band edge emission. A red shift was observed on the photoluminescence emission spectra when NH3 adsorbed into the pores of TiO2/ZSM-5 material. (C) 2009 Elsevier B.V. All rights reserved.