摘要
以乙二醇作反应物和溶剂，通过原位水解低温晶化法在较温和的条件下制备出纳米复合ZnO-TiO2光催化剂．通过TEM、XR-D、UV-Vis、BET、粒度分析等技术手段对光催化剂进行了表征，发现ZnO-TiO2是由纳米级的ZnO和TiO2粒子组成，该光催化剂分散性好，并且可以吸收部分可见光，扩大了光吸收范围。光催化降解甲基橙实验表明，ZnO-TiO2纳米复合氧化物的光催化活性明显高于自制的TiO2和ZnO单一氧化物和商业P25TiO2．
The complex nanometer photocatalyst ZnO-TiO2 is prepared in the temperate condition, using the ethylene glycol as reactant and dissolvent and resorting to the in-slut hydrolysation and low-temperature crystallization method. With TEM, XRD, UV-Vis, BET and particle size analysis technologies, the work done in characterizing of the complex photocatalyst comes to the conclusion that ZnO-TiO2 is composed of nanometer ZnO and TiO2 particles, possesses a good dispersion property and the ability of absorbing the visible light, and expand the scope of light absorption. From the experimental result of photocatalytic reactions, the complex nanometer photocatalyst ZnO-TiO2 obviously enjoys higher photocatalytic activity than the self-made TiO2, ZnO or commercial Degussa P25 TiO2.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A07期2440-2443,共4页
Journal of Functional Materials
基金
安徽省教育厅自然科学研究资助项目（KJ2007B014）
中国博士后科学基金资助项目（2004036511）.致谢：感谢广东省环境科学与技术公共实验室开放基金的资助.
关键词
异相光催化
纳米复合光催化剂
原位水解
heterogeneous photocatalysis
nanorneter coupled photocatalyst
in-siut hydrolysation
