期刊
MATERIALS RESEARCH BULLETIN
卷 91, 期 -, 页码 114-121出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2017.03.036
关键词
Semiconductors; Sol-gel chemistry; Phase transitions; X-Ray Diffraction; Catalytic properties
资金
- UGC-RGNF
- MNRE (NREF)
Titanium Di-Oxide (TiO2) was synthesized using PEG template assisted sol-gel synthesis process. Role of Poly ethylene Glycol (PEG) and the corresponding porous evolution was studied with respect to calcination temperatures. PEG evaporation and optimum pore formation was deduced from DTA, TGA and BET studies. Crystallization was studied using X-ray powder diffraction and Micro-Raman measurements. Field Emission Scanning Electron Microscope (FESEM) and HRTEM studies revealed that the porosity arises from the voids between the assemblies of nanocrystallites. Highest surface area of 133 m(2)/g and 159 m(2)/g were recorded for both brookite and brookite mixed with rutile respectively. The phase transition root was identified as: (i) from brookite to rutile and (ii) mixed brookite with rutile to pure rutile phases. Photodegradation studies reveal identical degradation sequence of MB > MO > RhB for brookite and P25 samples and a different degradation sequence of MB > RhB > MO for brookite mixed with rutile sample. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据