Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles
文献类型：期刊论文
| 作者 | Jian, Meipeng; Liu, Bao; Zhang, Gaosheng; Liu, Ruiping; Zhang, Xiwang |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2015-01-20 |
| 卷号 | 465期号:1页码:67-76 |
| 关键词 | Zeolitic imidazolate framework-8 Arsenic Adsorption Zeta potential Mechanisms |
| 英文摘要 | In this study, zeolitic imidazolate framework-8 (ZIF-8) nanosorbent was successfully synthesized via a facile method at room temperature. The ZIF-8 nanoparticles were characterized by nitrogen sorption, powder X-ray diffraction, field emission scanning electron microscope, transmission electron microscopy and Zeta potential. The synthesized ZIF-8 nanoparticles exhibited a high surface area of 1063.5 m(2)/g and were of 200-400 nm in particle size. The kinetic and isotherm data of arsenic adsorption on ZIF-8 were well fitted by pseudo-second-order and Langmuir models, respectively. The maximal adsorption capacities of As(III) and As(V) were of 49.49 and 60.03 mg/g, respectively, at T = 25 degrees C and pH 7.0. The ZIP-8 nanoparticles were stable at neutral and basic conditions. However, large amounts of Zn2+ were released into water from the sorbent at acidic condition, which dramatically hindered the adsorption of arsenic. SO42- and NO3- had no significant effect on the arsenic adsorption while the adsorption was significantly inhibited by PO43- and CO32-. X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy analysis revealed that electrostatic attraction and hydroxyl and amine groups on ZIF-8 surface played vital roles in the adsorption process. (C) 2014 Elsevier B.V. All rights reserved. |
| 研究领域[WOS] | Chemistry, Physical |
| WOS记录号 | WOS:000345556500010 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32507]  |
| 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 | Jian, Meipeng,Liu, Bao,Zhang, Gaosheng,et al. Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2015,465(1):67-76. |
| APA | Jian, Meipeng,Liu, Bao,Zhang, Gaosheng,Liu, Ruiping,&Zhang, Xiwang.(2015).Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,465(1),67-76. |
| MLA | Jian, Meipeng,et al."Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 465.1(2015):67-76. |
入库方式： OAI收割
来源：生态环境研究中心
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