Ag 插层 K4Nb6O17复合光催化剂降解水中有机污染物 / The Degradation of Organic Pollutants in Water on The Ag-intercalated K4Nb6O17 Composite Photocatalyst
- Resource Type
- Academic Journal
- Authors
- 穆晨帆; 梁英华; 刘利; 胡金山; 崔文权; Mu Chenfan; Liang Yinghua; Liu Li; Hu Jinshan; Cui Wenquan
- Source
- 中国环境管理干部学院学报 / Journal of the Environmental Management College of China-EMCC. (6):69-74
- Subject
- Ag 纳米颗粒
K4Nb6O17
插层
亚甲基蓝
可见光光降解
Ag nanoparticles
intercalation
methylene blue
visible light degradation
- Language
- Chinese
- ISSN
- 1008-813X
介绍了通过微波辅助的离子交换法制备 Ag 插层 K4Nb6O17复合光催化剂。复合光催化剂在降解水体中亚甲基蓝的过程中呈现出很高的光催化活性,并且插层复合光催化剂对亚基蓝在碱性条件下能发挥更高效的降解作用且对不同初始浓度的亚甲基蓝均具有较好的移除降解效率。在相同的反应条件下, Ag 插层复合光催化剂要比等量的 Ag 负载 K4Nb6O17, Ag 负载 TiO2复合光催化剂活性高很多,使 Ag 插层 K4Nb6O17复合光催化剂在净化水体污染物方面表现出更显著的优势。
Ag-intercalated layered niobate (denoted as K4Nb6O17/Ag) was synthesized via a micr-owave-assisted ion-exchange method. The high enhanced activity of the composite photocatalyst was observed during the degradation of methylene blue (MB). Also, the degradation rate of MB by K4Nb6O17/Ag was higher when the solution pH increased. The composite photocatalyst showed the high enhanced activity with the different concentration of MB. In the same condition, K4Nb6O17/Ag showed higher photocatalysis than Ag-loaded K4Nb6O17 and Ag-loaded TiO2 composite photocat-alysts.