Novel Al-doped carbon nanotubes with adsorption and coagulation promotion for organic pollutant removal
文献类型：期刊论文
| 作者 | Yu, Xiaolin; Kang, Dongjuan; Xu, Hui; Xiao, Feng; Ge, Maofa |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 54期号:0页码:1-12 |
| 关键词 | Al-doped Carbon Nanotubes Adsorption Organic Pollutants Methyl Orange Aqueous Solution |
| 英文摘要 | Al-doped carbon nanotubes (Al-doped CNTs) were prepared as a multifunctional integrated material of adsorbent and coagulant aid for organic pollutant removal from aqueous solution. It was observed that aluminum species were dispersed homogeneously on the surface of CNTs, and mainly anchored onto defect structures of the CNTs. The introduction of aluminium efficiently improved adsorption ability for methyl orange (MO) onto the CNTs, and maximum adsorption capacity calculated from the Langmuir isotherm model can reach 69.7 mg/g. The MO adsorption kinetics can be better described by the pseudo-second-order and pore diffusion kinetic models, and the diffusion of MO anions into pores of the Al-doped CNT adsorbent should be the rate-determining step. Thermodynamic analyses indicated that the adsorption of MO onto Al-CNTs-2.0 was endothermic and spontaneous. Moreover, adsorption capacity for MO on the Al-doped CNTs was evidently dependent on the CNT dose, solution pH and adsorbent dose. From the perspective of low-cost and multifunctional, suspension obtained during the Al-doped CNT adsorbent preparation, was tested as coagulant to remove humic acid (HA). A significant observation is that the suspension exhibited an excellent coagulation performance for HA, because abundant aluminous polymer and Al-doped CNTs existed in the suspension. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B. V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39533]  |
| 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 | Yu, Xiaolin,Kang, Dongjuan,Xu, Hui,et al. Novel Al-doped carbon nanotubes with adsorption and coagulation promotion for organic pollutant removal[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2017,54(0):1-12. |
| APA | Yu, Xiaolin,Kang, Dongjuan,Xu, Hui,Xiao, Feng,&Ge, Maofa.(2017).Novel Al-doped carbon nanotubes with adsorption and coagulation promotion for organic pollutant removal.JOURNAL OF ENVIRONMENTAL SCIENCES,54(0),1-12. |
| MLA | Yu, Xiaolin,et al."Novel Al-doped carbon nanotubes with adsorption and coagulation promotion for organic pollutant removal".JOURNAL OF ENVIRONMENTAL SCIENCES 54.0(2017):1-12. |
入库方式： OAI收割
来源：生态环境研究中心
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