Plasmonic Ag-TiO2-x nanocomposites for the photocatalytic removal of NO under visible light with high selectivity: The role of oxygen vacancies
Duan, YY (Duan, Yanyan); Zhang, M (Zhang, Mei); Wang, L (Wang, Lan); Wang, F (Wang, Fu); Yang, LP (Yang, Liping); Li, XY (Li, Xiyou); Wang, CY (Wang, Chuanyi)
2017
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
卷号204期号:5页码:67-77
摘要Integration of semiconductors with plasmonic noble metal nanoparticles for visible-light driven photo catalysis has become an interesting research field recently. In this work, Ag-TiO2-x nanocomposites were successfully synthesized via a facile photochemical reduction process followed by post-annealing. The deposition of Ag nanoparticles greatly increases the light absorption and charge separation. Compared with commercial P25, the Ag-TiO2-x nanocomposites are not only superior in visible-light photocatalytic NO removal, but also in inhibiting the production of NO2, whose toxicity is 4-5 times higher than NO. As confirmed by gas chromatography, the photo-oxidation of NO and selective photo-reduction of NO to N-2 occur simultaneously during the process of NO removal by Ag-TiO2-x. The oxidation of NO was due to the synergic effect between h(+) and O-center dot(2)-; while the selective photo-reduction was resulted from introduced oxygen vacancies in TiO2. In addition, the light wavelength dependence measurement reveals that the surface plasmon resonance effect of Ag is responsible for the improvement of the visible-light photoactivity. The present study will provide an alternative approach to design highly selective photocatalysts for NO removal under visible-light.
关键词No Removal Photoreduction Ag-tio2-x Surface Plasmon Resonance High Selectivity
DOI10.1016/j.apcatb.2016.11.023
收录类别SCI
WOS记录号WOS:000392681000008
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4853
专题中国科学院特殊环境功能材料与器件重点试验室
作者单位1.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Duan, YY ,Zhang, M ,Wang, L ,et al. Plasmonic Ag-TiO2-x nanocomposites for the photocatalytic removal of NO under visible light with high selectivity: The role of oxygen vacancies[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,204(5):67-77.
APA Duan, YY .,Zhang, M .,Wang, L .,Wang, F .,Yang, LP .,...&Wang, CY .(2017).Plasmonic Ag-TiO2-x nanocomposites for the photocatalytic removal of NO under visible light with high selectivity: The role of oxygen vacancies.APPLIED CATALYSIS B-ENVIRONMENTAL,204(5),67-77.
MLA Duan, YY ,et al."Plasmonic Ag-TiO2-x nanocomposites for the photocatalytic removal of NO under visible light with high selectivity: The role of oxygen vacancies".APPLIED CATALYSIS B-ENVIRONMENTAL 204.5(2017):67-77.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Plasmonic Ag-TiO2-x (3972KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Duan, YY (Duan, Yanyan)]的文章
[Zhang, M (Zhang, Mei)]的文章
[Wang, L (Wang, Lan)]的文章
百度学术
百度学术中相似的文章
[Duan, YY (Duan, Yanyan)]的文章
[Zhang, M (Zhang, Mei)]的文章
[Wang, L (Wang, Lan)]的文章
必应学术
必应学术中相似的文章
[Duan, YY (Duan, Yanyan)]的文章
[Zhang, M (Zhang, Mei)]的文章
[Wang, L (Wang, Lan)]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Plasmonic Ag-TiO2-x nanocomposites for the photocatalytic removal of NO under visible light with high selectivity The role of oxygen vacancies.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。