Sorption behavior of dye compounds onto natural sediment of Qinghe River
文献类型：期刊论文
| 作者 | Liu, RX; Liu, XM; Tang, HX; Su, YB |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2001 |
| 卷号 | 239期号:2页码:475-482 |
| 关键词 | natural sediment acid-base properties sorption effect factors dye compounds |
| 英文摘要 | The objective of this study is to assess the adsorption behavior of C.I. Basic Yellow X-5GL, C.I. Basic Red 13, C.I. Direct Blue 86, C.I. Vat Yellow 2, and C.I. Mordant Black 11 on natural sediment and to identify sediment characteristics that play a predominant role in the adsorption of the dyes. The potentiometric titration experiment is used to investigate acid-base properties of the sediment surface with a constant capacitance surface complexation model. The parameters controlling the sorption such as solution pH and ion strength, as well as the influence of organic carbon and Ca2+ ion on the adsorption, are evaluated. It is shown that the titration data can be successfully described by the surface protonation and deprotonation model with the least-squares FITEQL program 2.0. The sorption isotherm data are fitted to the Freundlich equation in a nonlinear form (1/n = 0.3-0.9) for all tested dyes. With increasing pH value, the sorption of C.I. Mordant Black 11 and C.I. Direct Blue 86 on the sediment decreases, while for C.I. Basic Yellow X-5GL and C.I. Basic Red 13, the extent of sorption slightly increases. In addition, ion strength also exhibits a considerably different effect on the sorption behavior of these dye compounds. The addition of Ca2+ can greatly reduce the sorption of C.I. Basic Red 13 on the sediment surface, while it enhances the sorption of C.I. Direct Blue 6. The removal of organic carbon decreases the sorption of C.I. Mordant Black 11 and C.I. Direct Blue 86. In contrast, the sorption of C.I. Basic Red 13 and C.I. Basic Yellow X-5GL is obviously enhanced after the removal of organic carbon. The differences in adsorption behavior are mainly attributed to the physicochemical properties of these dye compounds, (C) 2001 Academic Press. |
| WOS记录号 | WOS:000169835500022 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24089]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, RX,Liu, XM,Tang, HX,et al. Sorption behavior of dye compounds onto natural sediment of Qinghe River[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2001,239(2):475-482. |
| APA | Liu, RX,Liu, XM,Tang, HX,&Su, YB.(2001).Sorption behavior of dye compounds onto natural sediment of Qinghe River.JOURNAL OF COLLOID AND INTERFACE SCIENCE,239(2),475-482. |
| MLA | Liu, RX,et al."Sorption behavior of dye compounds onto natural sediment of Qinghe River".JOURNAL OF COLLOID AND INTERFACE SCIENCE 239.2(2001):475-482. |
入库方式： OAI收割
来源：生态环境研究中心
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