Visible light photodegradation of phenanthrene catalyzed by Fe(III)-smectite: Role of soil organic matter
文献类型：期刊论文
| 作者 | Jia, HZ (Jia, Hanzhong); Li, L (Li, Li)]; Fan, XY (Fan, Xiaoyun); Liu, MD (Liu, Mingdeng); Deng, WY (Deng, Wenye); Wang, CY (Wang, Chuanyi) |
| 刊名 | Journal of Hazardous Materials
 |
| 出版日期 | 2013 |
| 卷号 | 256期号:7页码:16-23 |
| 关键词 | Soil organic matter (SOM) Phenanthrene Smectite Visible light photodegradation Fenton-like reaction |
| ISSN号 | 0304-3894 |
| 通讯作者 | Wang,CY |
| 英文摘要 | In the present study, phenanthrene is employed as a model to explore the roles played by three soil organic matter (SUM) fractions, i.e., dissolved organic matter (DOM), humic acid (HA), and fulvic acid (FA), in its photodegradation with assistance of Fe(III)-smectite under visible-light. Slight decrease in phenanthrene photodegradation rate was observed in the presence of DOM, which is explained in terms of oxidative-radical competition between DOM and target phenanthrene molecules due to the high electron-donor capacity of phenolic moieties in DOM. On the other hand, a critic content is observed with FA (0.70 mg/g) and HA (0.65 mg/g). Before reaching the critic content, the removal of phenanthrene is accelerated; while after that, the photodegradation rate is suppressed. The acceleration of phenanthrene degradation can be attributed to the photosensitization of FA and HA. Due to the strong interaction between phenanthrene and the phenyl rings, however, the retention of phenanthrene on SOM-Fe(III)-smectite in the presence of high content of HA or FA is enhanced, thus slowing down its photodegradation. Those observations provide valuable insights into the transformation and fate of PAHs in the natural soil environment and open a window for using clay-humic substances complexes for remediation of contaminated soil. (C) 2013 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000321171700003 |
| 公开日期 | 2013-11-05 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/2554]  |
| 专题 | 新疆理化技术研究所_环境科学与技术研究室 |
| 作者单位 | Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, LEMST, Urumqi 830011, Xinjiang, Peoples R China;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, HZ ,Li, L ,Fan, XY ,et al. Visible light photodegradation of phenanthrene catalyzed by Fe(III)-smectite: Role of soil organic matter[J]. Journal of Hazardous Materials ,2013,256(7):16-23. |
| APA | Jia, HZ ,Li, L ,Fan, XY ,Liu, MD ,Deng, WY ,&Wang, CY .(2013).Visible light photodegradation of phenanthrene catalyzed by Fe(III)-smectite: Role of soil organic matter.Journal of Hazardous Materials ,256(7),16-23. |
| MLA | Jia, HZ ,et al."Visible light photodegradation of phenanthrene catalyzed by Fe(III)-smectite: Role of soil organic matter".Journal of Hazardous Materials 256.7(2013):16-23. |
入库方式： OAI收割
来源：新疆理化技术研究所
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