期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 31, 页码 17061-17069出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b03535
关键词
Ag; bismuth tantalate; nanocomposite; SPR; photocatalysis; tetracycline
资金
- National Natural Science Foundation of China [21276116, 21477050, 21301076, 21303074, 21201085]
- Excellent Youth Foundation of Jiangsu Scientific Committee [BK20140011]
- State Key Laboratory of Rare Earth Resource Utilizations [RERU2014010]
- Program for New Century Excellent Talents in University [NCET-13-0835]
- Henry Fok Education Foundation [141068]
- Six Talents Peak Project in Jiangsu Province [XCL-025]
- Chinese-German Cooperation Research Project [GZ1091]
A novel Ag/Bi3TaO7 plasmonic photocatalyst has been prepared by a simple photoreduction process. The as-prepared Ag/Bi3TaO7 photocatalyst exhibited an enhanced photocatalytic activity for the degradation of tetracycline (TC) compared to that of a bare Bi3TaO7 catalyst. The 1 wt % Ag-loaded Bi3TaO7 sample showed the highest photo catalytic efficiency for TC degradation (85.42%) compared with those of the other samples. The enhanced photo catalytic activity could be ascribed to the synergistic effect of the surface plasmon resonance caused by Ag nanoparticles. Electrochemical impedance spectroscopy demonstrated that the incorporation of silver nanoparticles onto the Bi3TaO7 surface promoted the separation of photogenerated carriers. In addition, an electron spin resonance (ESR) and trapping experiment revealed that the photoinduced active species hydroxyl radical and superoxide radical were the main active species in the photocatalytic process of TC degradation. The photocatalytic reaction mechanism was discussed by active species trapping and ESR analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据