稀土离子Tm^(3+)掺杂Bi_2WO_6的可见光催化性能  

Visible-Light Catalytic Performance of Rare Earth Ions Tm^(3+) Doped Bi_2WO_6

作　　者：赵炜迪 何金云[1,2] 王燕舞[3] 龙飞[1,2] 彭代江 邹正光[1,2] 

机构地区：[1]桂林理工大学材料科学与工程学院,桂林541004 [2]桂林理工大学有色金属及材料加工新技术教育部重点实验室,桂林541004 [3]桂林理工大学环境科学与工程学院,桂林541004

出　　处：《无机化学学报》2018年第2期359-366,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.51662005);广西自然科学基金(No.KY2016YB185)资助项目

摘　　要：以Na_2WO_4·2H_2O和Bi(NO_3)_3·5H_2O为主要原料,采用水热法合成了稀土离子Tm^(3+)掺杂的Bi_2WO_6光催化剂。采用XRD、SEM、TEM、Raman、PL、DRS研究了Tm^(3+)掺杂Bi_2WO_6的物相,微观形貌和可见光催化性能。结果表明,Tm^(3+)掺杂有效提高了Bi_2WO_6的光催化性能,当掺杂量为6%时,样品的光催化性能最好,可见光照射30 min后,对罗丹明B的降解效率达到91.27%,而可见光照射5 h后,对焦糖色素的降解效率达45.25%。与未掺杂Bi_2WO_6相比,分别提高了27.78%和35.22%。The rare earth ion Tm3＋ doped Bi2WO6 photocatalyst was synthesized by hydrothermal method using Na2WO4·2H2O and Bi（NO3）3·5H2O as the main raw materials. The phase, microstructure and visible light proper-ties of Tm3＋ doped Bi2WO6 were studied by XRD, SEM, TEM, Raman, PL and DRS. The results show that the photocatalytic performance of Bi2WO6 is improved by Tm3＋ ion doping. When the doping amount is 6%, the photo-catalytic performance of the sample is the best, and the degradation efficiency of Rhodamine B is 91.27% after 30 minutes of visible light irradiation, After 5 hours of visible light irradiation, the degradation efficiency of the carculin was 45.25%. Compared with undoped Bi2WO6, the degradation rate is increased 27.78% and 35.22%, respectively.

关 键 词：钨酸铋 水热合成 Tm掺杂 可见光催化 

分 类 号：O614.345[理学—无机化学] O643.32[理学—化学]