Effects of humic acid and lipid on the sorption of phenanthrene on char
文献类型：期刊论文
| 作者 | Wen, Bei ; Huang, Ri-xiang ; Li, Rui-juan ; Gong, Ping ; Zhang, Shuzhen ; Pei, Zhi-guo ; Fang, Jing ; Shan, Xiao-quan ; Khan, Shahamat U. |
| 刊名 | GEODERMA
 |
| 出版日期 | 2009-04-15 |
| 卷号 | 150期号:1页码:202-208 |
| 关键词 | Phenanthrene Sorption Char Lipid Humic acid Coating |
| 中文摘要 | The impact of two types of natural organic matters (NOM), humic acid (HA) and lipid, on char properties and sorption affinities for phenanthrene was studied. Char was coated with HA and lipid at a concentration of 0.060, 0.250 and 0.500 g/g char. HA, lipid, char and coated char were characterized and their sorption behaviors for phenanthrene were compared. Coating with NOM increased the polarity and aliphaticity, and reduced the specific surface area (SSA) of char, depending on the coated amount and the type of NOM. At the lower HA and lipid loading there was a strong attenuation of N(2)-assessible SSA. The SSA attenuation was less pronounced at larger HA and lipid loadings, which was most likely due to the preferential sorption at reactive sites and formation of clusters. The sorption isotherms of phenanthrene on char and coated char fitted Freundlich equation well, suggesting that all sorption isotherms were nonlinear, with N values in the range of 0.495-0.873. Coated char with HA and lipid decreased the organic carbon-normalized sorption coefficients K(Foc) and increased the N values. Lipid was more effective than HA in decreasing SSA. phenanthrene sorption capacity and sorption isotherm nonlinearity. The N values were correlated positively with the aliphaticity and negatively with pore volume of sorbents. The results of this investigation demonstrated that different NOM plays a different role in attenuating the SSA and sorption affinity of char for phenanthrene. (C) 2009 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000265342800024 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21493]  |
| 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,Huang, Ri-xiang,Li, Rui-juan,et al. Effects of humic acid and lipid on the sorption of phenanthrene on char[J]. GEODERMA,2009,150(1):202-208. |
| APA | Wen, Bei.,Huang, Ri-xiang.,Li, Rui-juan.,Gong, Ping.,Zhang, Shuzhen.,...&Khan, Shahamat U..(2009).Effects of humic acid and lipid on the sorption of phenanthrene on char.GEODERMA,150(1),202-208. |
| MLA | Wen, Bei,et al."Effects of humic acid and lipid on the sorption of phenanthrene on char".GEODERMA 150.1(2009):202-208. |
入库方式： OAI收割
来源：生态环境研究中心
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