钒—氮共掺杂TiO_2光催化剂的合成优化  

Optimum Synthesis of Vanadium and Nitrogen Codoped TiO_2 Photocatalyst

作　　者：韩立娟[1] 安兴才[1] 陈作雁[1] 刘刚[1] 

机构地区：[1]甘肃省科学院自然能源研究所,甘肃兰州730046

出　　处：《甘肃科学学报》2014年第4期98-100,118,共4页Journal of Gansu Sciences

基　　金：甘肃省青年科技基金计划项目(1308RJYA051);甘肃省科学院青年科技创新基金(2013QN-16)

摘　　要：采用溶胶—凝胶法合成了钒—氮共掺杂TiO2光催化剂,通过在模拟太阳光下降解苯酚测定其光催化活性.考察了钒源用量、水解温度、陈化温度、陈化时间等因素对钒—氮共掺杂TiO2光催化降解苯酚性能的影响.结果显示,最优条件下合成出的钒—氮共掺杂TiO2在模拟太阳光下催化反应4h,对浓度为60mg/L的苯酚的降解率达到91.83%.The vanadium and nitrogen eodoped TiO2 photoeatalyst was synthesized by the sol-gel method. Its photocatalysis was evaluated through the degradation of phenol in the simulated sunlight. The influences of hydrolytic temperature,drying temperature,aging temperature and time,and vanadium amount on photocatalysis were investigated. The results showed that after vanadium and nitrogen codoped TiO2 prepared in optimum conditions was catalyzed in the simulated sunlight for four hours, the degradation rate of phenol （60 mg/L） reached 91.83%.

关 键 词：二氧化钛 钒氮共掺杂 光催化 合成工艺 

分 类 号：TQ622[化学工程—精细化工]