水热法制备掺银TiO2纳米纤维及性能表征  

The Performance Characterization of Hydrothermal Synthesized Ag Doped TiO2 Nanofiber

作　　者：薛婷 李斌[1] 叶云 Xue Ting;Li Bin;Ye Yun(Department of Physics,Changji College,Xinjiang ChangJi 831100)

机构地区：[1]昌吉学院物理系,新疆昌吉831100

出　　处：《云南化工》2020年第8期72-73,共2页Yunnan Chemical Technology

基　　金：新疆维吾尔自治区“十三五”重点学科“材料科学与工程”资助。

摘　　要：为了提高TiO2的光催化性能,以TiO2、氢氧化钠、硝酸银为原料,采用水热法制备掺银TiO2纳米纤维,并对产物的粒径大小、微观形貌及光降解率进行了表征。结果表明,反应时间和反应温度对产物的形貌影响最大,并且当氢氧化钠溶液浓度为11mol/L,掺银量为0.5%,反应温度为150℃,反应时间为72h,烧结温度为500℃时,所得到的纳米纤维直径在5-15nm之间,降解率达到了91%。In order to improve the photocatalytic performance of TiO2,Ag doped TiO2 nanofibers are synthesized successfully from TiO2 nanoparticles,sodium hydroxide solution and silver nitrate solution by hydrothermal treatment.The particle size,microstructure and photodegradation rate of the samples are characterized.The results show that the rection temperature and time have the largest effect on the pattern of products,and the optimal reaction conditions are a concentration of sodium hydroxide solution of 11 mol/L,a loading Ag of 0.5%,a calcination temperature of 500℃,a rection temperature and time of 150℃and 72h,respectively.At the conditions,the diameter of nanotiber is 5-15nm and the degradation rate reaches to 91%.

关 键 词：TIO2 掺银 纳米纤维 热法 降解率 

分 类 号：O472.3[理学—半导体物理] TB333[理学—物理]