Photocatalytic degradation of polycyclic aromatic hydrocarbons on soil surfaces using TiO2 under UV light
文献类型：期刊论文
| 作者 | Li, XM; Zhang, LH; Li, PJ; Gong, ZQ; Li, PJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2008 |
| 卷号 | 158期号:2-3页码:478-484 |
| 关键词 | Phytocatalysis Polycyclic Aromatic Hydrocarbons (Pahs) Soil Tio2 Ultraviolet (Uv) |
| ISSN号 | 0304-3894 |
| 英文摘要 | The photocatalytic degradation of pahenanthrene (PHE), pyrene (PYRE) and henzo[a]pyrene (BaP) on soil surfaces in the presence of TiO2 using ultraviolet (UV) light source was investigated in a photo chamber, in which the temperature was maintained 30 degrees C. The effects of various factors, namely TiO2, soil pH, humic acid, and UV wavelength, on the degradation performance of polycyclic aromatic hydrocarbons (PAHs) were studied. The results show that photocatalytic degradation of PAHs follows the pseudo-first-order kinetics. Catalyst TiO2 accelarated the photodegradation of PHE, PYRE and BaP significantly, with their half-lives being reduced from 533.15 to 130.77h. 630.09 to 192.53h and 363.22 to 103.26h respectively, when the TiO2 content was 0.5%. In acidic or alkaline conditons, the photocatalytic degradation rates of the PAHs were greater than those in neutral conditions. Humic acid significantly enhanced the PAH photocatalytic degradatio by sensitizing radicals capable of oxidizingg PAHs. Photocatalytic degradation rates of PYRE and BaP on soil surfaces with 2% TiO2 were different at UV irradiation wavelengths of 254, 310 and 365 nm, respectively. The synergistic effect of UV irradiation and TiO2 catalysis was efficient for degradation of PAHs in contaminanted soil. (C) 2008 Elsevier B.V. All rights reserved. |
| 学科主题 | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000259887400030 |
| 资助机构 | National Key Basic Research Development Program of China [2004CB418506]; National Natural Science Foundation of China [20337010]; National High Technology Research and Development Program of China [2002AA601022] |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54355]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
| 通讯作者 | Li, PJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, XM,Zhang, LH,Li, PJ,et al. Photocatalytic degradation of polycyclic aromatic hydrocarbons on soil surfaces using TiO2 under UV light[J]. JOURNAL OF HAZARDOUS MATERIALS,2008,158(2-3):478-484. |
| APA | Li, XM,Zhang, LH,Li, PJ,Gong, ZQ,&Li, PJ, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2008).Photocatalytic degradation of polycyclic aromatic hydrocarbons on soil surfaces using TiO2 under UV light.JOURNAL OF HAZARDOUS MATERIALS,158(2-3),478-484. |
| MLA | Li, XM,et al."Photocatalytic degradation of polycyclic aromatic hydrocarbons on soil surfaces using TiO2 under UV light".JOURNAL OF HAZARDOUS MATERIALS 158.2-3(2008):478-484. |
入库方式： OAI收割
来源：沈阳应用生态研究所
浏览0
下载0
收藏0
其他版本
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。