Synthesis and evaluation of activated carbon/nanoclay/thiolated graphene oxide nanocomposite for lead(II) removal from aqueous solution
文献类型：期刊论文
| 作者 | Mojoudi, Fatemeh; Hamidian, Amir Hossein; Zhang, Yu ; Yang, Min
|
| 刊名 | WATER SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 79期号:3页码:466-479 |
| 关键词 | activated carbon graphene oxide lead(II) removal nanoclay porous nanocomposite |
| ISSN号 | 0273-1223 |
| 英文摘要 | Novel porous nanocomposite (AC/NC/TGO) was successfully synthesized through the composition of activated carbon, nanoclay and graphene oxide as a Pb(II) adsorbent for the treatment of contaminated aqueous environment. The physicochemical properties and morphology of AC/NC/TGO were examined by Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy and nitrogen adsorption-desorption techniques. Results showed Pb(II) adsorption on the AC/NC/TGO was rapid in the first 20 min and reached equilibrium in 40 min. Kinetic studies showed significant fit to the pseudo second order kinetic model (R-2 >= 0.9965) giving an equilibrium rate constant (K2) of 0.0017 g mg(-1) min(-1) for Pb(II) loaded. The experimental adsorption data were better fitted with the Langmuir isotherm model than with the Freundlich isotherm model. Prepared nanocomposite exhibited high values of Brunauer-Emmett-Teller (BET) surface area of 1,296 m(2) g(-1) and total pore volume of 1.01 cm(3) g(-1). Maximum adsorption capacity (Q(max) = 208 mg g(-1)) and a relatively high adsorption rate was achieved at pH 5.0 using an adsorbent dose of 0.5 g L-1 and an initial lead concentration of 50 mg L-1. High adsorption capacity, reusability, fast kinetics and simple synthesis method indicate that prepared nanocomposite can be suggested as a high-performance adsorbent for Pb(II) removal from polluted water. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/43121]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Tehran, Fac Nat Resources, Dept Environm Sci & Engn, Karaj, Iran |
| 推荐引用方式 GB/T 7714 | Mojoudi, Fatemeh,Hamidian, Amir Hossein,Zhang, Yu,et al. Synthesis and evaluation of activated carbon/nanoclay/thiolated graphene oxide nanocomposite for lead(II) removal from aqueous solution[J]. WATER SCIENCE AND TECHNOLOGY,2019,79(3):466-479. |
| APA | Mojoudi, Fatemeh,Hamidian, Amir Hossein,Zhang, Yu,&Yang, Min.(2019).Synthesis and evaluation of activated carbon/nanoclay/thiolated graphene oxide nanocomposite for lead(II) removal from aqueous solution.WATER SCIENCE AND TECHNOLOGY,79(3),466-479. |
| MLA | Mojoudi, Fatemeh,et al."Synthesis and evaluation of activated carbon/nanoclay/thiolated graphene oxide nanocomposite for lead(II) removal from aqueous solution".WATER SCIENCE AND TECHNOLOGY 79.3(2019):466-479. |
入库方式： OAI收割
来源：生态环境研究中心
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