中南大学学报（自然科学版）2016，Vol.47Issue(5)：1487-1493,7.DOI:10.11817/j.issn.1672-7207.2016.05.005
花瓣状铈掺杂纳米TiO2光催化剂的制备及其光催化活性
Preparation and photocatalytic activity of petal-like doped nano TiO2 photocatalyst using hydrothermal method
摘要
Abstract
A series of cerium-doped TiO2 photocatalysts with petal-like nano-architecture were prepared by hydrothermal method using Ce(SO4)2·4H2O and Ti(SO4)2 as precursors, glucan as template. Scanning electron microscopy (SEM), X-ray diffraction (XRD), nitrogen adsorption-desorption measurements, IR spectroscopy and UV-Vis spectroscopy (UV-Vis) were employed to characterize the morphology, crystal structure, surface structure, and optical absorption properties of the samples. The photocatalytic performance of the samples was studied by photodegradation methylene blue in water with UV and sun light irradiation, the final degradation products were confirmed by measuring the chemical oxygen demand (COD) of the solution before and after degradation. The results show that the nano-TiO2 materials have petal-like structures, the petal-like cerium-doped TiO2 photocatalysts exhibit higher photocatalytic activities for the degradation of methylene blue than P25 and un-doped TiO2 in both UV and sun light. Moreover, the petal-like TiO2 photocatalysts can be easily recovered from the medium and reused without any mass loss.关键词
花瓣状/铈掺杂/纳米二氧化钛/光催化/亚甲基蓝Key words
petal-like/cerium-doping/nano-titanium dioxide/photocatalytic activity/methylene blue分类
化学化工引用本文复制引用
陈爽,姚淑华,石中亮..花瓣状铈掺杂纳米TiO2光催化剂的制备及其光催化活性[J].中南大学学报（自然科学版）,2016,47(5):1487-1493,7.基金项目
国家自然科学基金资助项目(41373127)；辽宁省高等学校优秀人才支持计划项目(LR2015052)(Project (41373127) supported by the National Natural Science Foundation of China （41373127）
Project(LR2015052) supported by the Program for Liaoning Excellent Talents in University of China) （LR2015052）
