摘要
钛酸丁酯和乙酐在低于 1 0 0℃非水状态下生成非晶钛氧聚合物 ,经焙烧得到纳米二氧化钛晶体 ,焙烧失重 4 6.55% ,在 31 4℃～ 389℃之间失去表面有机基团 ,389℃～ 4 0 5℃之间转化为锐钛矿型晶体。XRD和 TEM研究了晶体颗粒的表征。
Nanometer crystalline titanium dioxide powders have been synthesized by the reaction of titanium tetrabutoxy with acetic anhydride at low temperature(<100℃).After calcination ,the reaction products may formed crystalline anatase ,losting rate 46.55%.The powders characterizations were carried out with XRD(X-ray diffraction )and TEM (Transmission Electron Microscopy).The phtocalytic activity were evaluated with the photocatalytic degradation of aniline
出处
《衡阳师范学院学报》
2001年第3期25-30,共6页
Journal of Hengyang Normal University
关键词
纳米晶体粒子
二氧化钛
非水合成
光催化降解
Nanometer crystalline particles
Ti02
Non-aqueous Synthesis
Photocatalytic degradation
