TiO_2光催化杀菌机理及应用研究进展  

Progress of Mechanism and Application of Photocatalytic Bactericidal Effect of TiO_2

作　　者：张慧书[1] 刘守新[1] 

机构地区：[1]东北林业大学材料科学与工程学院,哈尔滨150040

出　　处：《科学技术与工程》2009年第17期5049-5056,5064,共9页Science Technology and Engineering

基　　金：黑龙江省杰出青年基金(JC200801);国家自然科学基金(30771692)资助

摘　　要：光照TiO2表面产生强氧化性的活性氧基团,通过直接或间接的方式与细菌细胞结合,对环境微生物具有抑制或杀灭作用。与传统有机、无机抗菌剂相比,TiO2光催化杀菌具有持久、耐热、安全、不易产生耐药性、杀菌彻底等优点。另外,理论上光催化剂TiO2不消耗,可重复使用。主要介绍TiO2光催化剂的杀菌机理,及其在陶瓷、涂料、塑料、织物、水处理等领域的应用。并对TiO2抗菌材料的发展进行了展望。Reactive oxygen species generated on the surface of irradiated TiO2 can combine directly or indirectly with microbial cell and then kill or inhibit microorganisms. Compared with traditional disinfectant, TiO2 photocatalytic bactericide has the advantages of long duration, thermal resistance, safety, less drug-resistance, and high bactericidal activity. In addition, TiO2 particles would not be consumed theoretically then could be used repeatedly. Progress of mechanism of photocatalytic bactericidal effect of TiO2 is reviewed. Its applications in the field of ceramics, pigments, plastic, textile and water treatment are summarized. The prospects of photocatalytic bactericidal effect of TiO2 are also discussed.

关 键 词：纳米TIO2 杀菌机理 光催化 

分 类 号：O643.361[理学—物理化学]