%0 Journal Article
%T Structure, Surface Properties and Photocatalytic Activity of TiO2 Nanoparticles<br>TiO2纳米粒子的结构、表面特性及其光催化活性研究
%A SHANG Jing
%A XU Zi-Li
%A DU Yao-Guo
%A LI Jing-Min
%A <br>尚静
%A 徐自力
%A 杜尧国
%A 李静敏
%J 无机材料学报
%D 2001
%I Science Press
%X TiO2 nanoparticles were prepared by the hydrolysis of titanium alkoxide. The properties of the particles were characterized by XRD, SPS, XPS and ESR techniques. The particle size of the TiO2 increased as the calcining temperature increased and the structure of the TiO2 changed from anatase to rutile. The photocatalytic oxidation of heptane was used as model reaction to measure the photocatalytic activity of TiO2 particles. The photocatalytic activity of TiO2 particles washed with ethanol is higher than that of TiO2 particles washed with water. The lower calcining temperature induces the blue-shift of photovoltage, the threshold higher, and the content of Ti3+ higher, which help to enhance the photocatalytic activity of TiO2 particles.
%K titanium dioxide
%K heptane
%K surface properties
%K photocatalytic activity<br>二氧化钛
%K 庚烷
%K 表面特性
%K 光催化活性
%K 纳米粒子
%K 结构
%K 光催化剂
%K 气相光催化氧化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=DB8CB274E2D20C2B&yid=14E7EF987E4155E6&vid=7801E6FC5AE9020C&iid=B31275AF3241DB2D&sid=C4B40BDE3E33484C&eid=DB29DCDE63A11F6A&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=10&reference_num=20