Silver nanoparticles decorated anatase TiO2 nanotubes for removal of pentachlorophenol from water
文献类型：期刊论文
| 作者 | Yu, Lian; Yang, Xiaofang; Ye, Yushi; Peng, Xianjia; Wang, Dongsheng |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 453页码:100-106 |
| 关键词 | TiO2 nanotubes (TNTs) Ag nanoparticles Photocatalysis Pentachlorophenol Solar light |
| 英文摘要 | One-dimensional nanotubes are promising materials for environmental applications. In this study, anatase TiO2 nanotubes (TNTs) were fabricated using an alkaline hydrothermal method at 130 degrees C and then calcinated at 400 degrees C for 2 h. Ag nanoparticles were photo-deposited onto the TNTs for enhanced photodegradation of pentachlorophenol (PCP) under simulated solar light. The samples were characterized using transmission electron microscopy, physical adsorption of nitrogen, X-ray diffraction, X-ray photoelectron spectroscopy and UV-Visible diffuse reflectance spectroscopic techniques. The as-synthesized TNTs showed tubular structures with the outer and inner diameter of 9-10 and 5-6 nm, respectively. The results showed that metallic Ag nanoparticles were uniformly dispersed on the TNTs surface, and Ag/TNTs exhibited significant visible-light absorption. After 180 mm irradiation, about 99% PCP was removed by Ag/TNTs (5.4 at.%), compared to 54.3% by P25 and 59.4% by pure TNTs. This is attributed to the synergistic effects between Ag nanoparticles acting as traps to effectively capture the photo-generated electrons, and the localized surface plasmon resonance (LSPR) of Ag nanoparticles promoting the absorption of visible light. The intermediates during the PCP photodegradation were systematically analyzed, ruling out the existence of high toxic polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans. Ag/TNTs showed excellent stability even after five cycles. (C) 2015 Elsevier Inc. All rights reserved. |
| 研究领域[WOS] | Chemistry, Physical |
| WOS记录号 | WOS:000356187200013 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32846]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yu, Lian,Yang, Xiaofang,Ye, Yushi,et al. Silver nanoparticles decorated anatase TiO2 nanotubes for removal of pentachlorophenol from water[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2015,453:100-106. |
| APA | Yu, Lian,Yang, Xiaofang,Ye, Yushi,Peng, Xianjia,&Wang, Dongsheng.(2015).Silver nanoparticles decorated anatase TiO2 nanotubes for removal of pentachlorophenol from water.JOURNAL OF COLLOID AND INTERFACE SCIENCE,453,100-106. |
| MLA | Yu, Lian,et al."Silver nanoparticles decorated anatase TiO2 nanotubes for removal of pentachlorophenol from water".JOURNAL OF COLLOID AND INTERFACE SCIENCE 453(2015):100-106. |
入库方式： OAI收割
来源：生态环境研究中心
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