期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 227, 期 1, 页码 45-50出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2011.10.023
关键词
Photodegradation; 2,4-D herbicide; PdO/Al2O3-Nd2O3 sol-gel; N-2 physisorption; XRD; UV-vis; FTIR
资金
- CONACYT [60702]
- COECYTJAL [06-2009-732]
- PROMEP
The photocatalytic activity of 1.0 wt% PdO supported on Al2O3-Nd2O3 binary oxides prepared by the sol-gel method was studied in the photodegradation of 2,4-dichlorophenoxyacetic acid (2,4-D). The photocatalysts were characterized by N-2 physisorption, XRD and UV-vis spectroscopy. MO supported on gamma-Al2O3 photo-degrades the 2,4-D, however the addition of Nd2O3 to gamma-Al2O3 notably improves the photocatalytic activity. As the concentration of Nd2O3 in the binary oxide increases from 2 to 10 wt%, the photodegradation of 2,4-D is highly enhanced. The catalytic test for PdO supported on pure Nd2O3 showed scarce photocatalytic activity. Total organic carbon (TOC) analysis showed that the 2,4-D has been completely destroyed on the PdO/Al2O3-Nd2O3 photocatalysts after 6 h under irradiation. (C) 2011 Elsevier B.V. All rights reserved.
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