张立新, 孙益新, 辛淑香, et al. 中空TiO2微球的制备与表征[J]. 2013, (3).DOI:
中空TiO2微球的制备与表征
摘要
以葡萄糖、TBOT以及HCl为原料
通过C微球模板法在溶剂热处理条件下成功制备出了粒径可控的中空TiO2微球
并对产物进行了表征和性能研究.XRD结果表明产物为锐钛矿结构;SEM结果显示产物为规整球形形貌
粒径分布均匀;TEM结果显示产物具有典型的中空结构
中空壳层由大量纳米晶组成.UV-vis研究结果表明
中空TiO2微球的光吸收波段发生红移
吸收边红移至750nm左右处;BET研究结果表明
中空TiO2微球具有介孔结构
比表面积约为99.8m2·g-1
孔容约为0.62cm3·g-1
平均孔径约为5.3nm.
Abstract
The fabrication
characterization and properties of holl ow titania(TiO2)spheres was presented through a solvothermal process with C micro-spheres template synthetic route using glucose
TBOT
and HCl as raw mat erials.The XRD
SEM and TEM results show that as-prepared products of hollow Ti O2 spheres are anatase
and they are uniform spherical within a narrow si ze distribution
and are typically hollow structured
respectively.The products are studied through UV-vis and BET
and the results show that the light adsorp tion edge of products moves a remarkable red shift to 750 nm
and the mesoporous products have a high surface area