掺氮TiO2光催化剂制备与性能研究  

A STUDY ON THE PREPARATION AND PROPERTIES OF NITROGEN-DOPED TiO_2 PHOTOCATALYST

作　　者：徐小勇[1] 施卫国[1] 卢丹丽 何志平 向芸[1] 

机构地区：[1]萍乡高等专科学校化学工程系,萍乡337055 [2]德化陶瓷职业技术学院材料工程系,泉州362500

出　　处：《中国陶瓷》2009年第4期46-48,共3页China Ceramics

基　　金：江西省科技计划项目资助(GJJ08494)

摘　　要：采用浸渍法制备了掺氮TiO2光催化剂,并以苯酚为降解对象,对其可见光活性进行评估。利用XRD、UV-Vis等手段对催化剂进行表征,考查了浸渍时间和热处理温度对催化剂结构和可见光活性的影响。结果表明,浸渍时间为8h,煅烧温度为500℃时,可见光活性最大,对苯酚的降解率最大,在光照4h后对苯酚的降解率达到40.12%。Visible-light-driven Nitrogen-doped titanium dioxide was prepared by impregnation method. Photocatalytic activity was investigated through the photocatalytic degradation of phenol. The obtained samples were characterized by XRD, UV-Vis. Effects of different impregnation times and calcination temperatures on the structure and the activity of the catalysts were studied. The results show that the photocatalyst with the highest visible light activity is obtained when TiO2 is impregnated in ammonia for 8 hours and then calcined at 500℃ . In this case the degradation rate of phenol is 40.12% after illuminated for 4h.

关 键 词：TIO2 氮掺杂 光催化 

分 类 号：TQ174.758.11[化学工程—陶瓷工业]