孟长功

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:中科院金属所

学位:博士

所在单位:化工学院

学科:无机化学

办公地点:大连理工大学化学楼401

联系方式:13940825088

电子邮箱:cgmeng@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

Optical studies of ZSM-5 crystals infiltrated with TiO2

点击次数:

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.