Adsorption kinetics, isotherms and thermodynamics of Cr(III) on graphene oxide
文献类型:期刊论文
作者 | Yang, Shuang ; Li, Lingyun ; Pei, Zhiguo ; Li, Chunmei ; Lv, Jitao ; Xie, Jieli ; Wen, Bei ; Zhang, Shuzhen |
刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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出版日期 | 2014 |
卷号 | 457期号:1页码:100-106 |
关键词 | Adsorption Graphene oxide Chromium Kinetics Thermodynamics FTIR |
ISSN号 | 0927-7757 |
中文摘要 | The adsorption kinetics, isotherms and thermodynamics of Cr(III) on graphene oxide (GO) were studied. The adsorption kinetic data were well described with pseudo-second-order model and the equilibrium data were well fitted by Langmuir model. The calculated thermodynamic parameters indicated that the adsorption of Cr(III) on GO was spontaneous and endothermic. The maximum adsorption capacity of Cr(III) on GO at pH 5.0 and T=296 K was about 92.65 mg g(-1), which was higher than other reported adsorbents. It was found that the adsorption of Cr(III) on GO was strongly dependent on solution pH, but weakly dependent on ionic strength. Fourier transform infrared (FTIR) spectra suggested that Cr(III) was adsorbed on GO mainly through the formation of inner-sphere complexes with the O-containing functional groups on GO surface. Results in this study suggested that GO was a suitable material for the preconcentration and removal of Cr(III) from water. (C) 2014 Elsevier B.V. All rights reserved. |
WOS记录号 | WOS:000340340600014 |
公开日期 | 2015-03-24 |
源URL | [http://ir.rcees.ac.cn/handle/311016/9312] ![]() |
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 | Yang, Shuang,Li, Lingyun,Pei, Zhiguo,et al. Adsorption kinetics, isotherms and thermodynamics of Cr(III) on graphene oxide[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2014,457(1):100-106. |
APA | Yang, Shuang.,Li, Lingyun.,Pei, Zhiguo.,Li, Chunmei.,Lv, Jitao.,...&Zhang, Shuzhen.(2014).Adsorption kinetics, isotherms and thermodynamics of Cr(III) on graphene oxide.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,457(1),100-106. |
MLA | Yang, Shuang,et al."Adsorption kinetics, isotherms and thermodynamics of Cr(III) on graphene oxide".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 457.1(2014):100-106. |
入库方式: OAI收割
来源:生态环境研究中心
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