Phenanthrene sorption to soil humic acid and different humin fractions
文献类型：期刊论文
| 作者 | Wen, Bei ; Zhang, Jing-Jing ; Zhang, Shu-Zhen ; Shan, Xiao-Quan ; Khan, Shahamat U. ; Xing, Baoshan |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 41期号:9页码:3165-3171 |
| 英文摘要 | This study was undertaken to provide an insight into the effect of heterogeneous soil organic matter (SOM) on the sorption of phenanthrene. Humic acid (HA) and humin were extracted from a peat soil. Humin was further fractionated into bound-humic acid (BHA), lipid, and insoluble residue (IR) fractions. Heterogeneous natures of these fractions were characterized by elemental analysis, ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, and solid-state C-13 NMR. Aliphaticity of the fractions followed the order lipid > BHA > HA > IR, while the polarity order was IR > BHA > HA > lipid. Sorption of phenanthrene on these fractions fitted the Freundlich equation, suggesting that phenanthrene sorption isotherms of lipid were almost linear (N = 0.993), while those of HA, BHA, and IR were nonlinear, with N values ranging from 0.723 to 0.910. The N values followed the order lipid > HA > BHA > IR and were significantly correlated inversely with their polarities (p < 0.05). Organic carbon-normalized sorption coefficients (K-FOC) were independent of aliphatic or aromatic contents of the SOM fractions. The results suggested that SOM, especially for the humin fractions, was highly heterogeneous in terms of elemental composition, structure, and polarity. Such heterogeneity was considered to be responsible for the nonlinear sorption of phenanthrene. |
| WOS记录号 | WOS:000246371100027 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22490]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wen, Bei,Zhang, Jing-Jing,Zhang, Shu-Zhen,et al. Phenanthrene sorption to soil humic acid and different humin fractions[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2007,41(9):3165-3171. |
| APA | Wen, Bei,Zhang, Jing-Jing,Zhang, Shu-Zhen,Shan, Xiao-Quan,Khan, Shahamat U.,&Xing, Baoshan.(2007).Phenanthrene sorption to soil humic acid and different humin fractions.ENVIRONMENTAL SCIENCE & TECHNOLOGY,41(9),3165-3171. |
| MLA | Wen, Bei,et al."Phenanthrene sorption to soil humic acid and different humin fractions".ENVIRONMENTAL SCIENCE & TECHNOLOGY 41.9(2007):3165-3171. |
入库方式： OAI收割
来源：生态环境研究中心
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