High capacity adsorption of Cr(VI) from aqueous solution using polyethylenimine-functionalized poly(glycidyl methacrylate) microspheres
文献类型：期刊论文
| 作者 | Sun, Xitong1,2; Yang, Liangrong1; Xing, Huifang1 ; Zhao, Junmei1; Li, Xiaopei1,2; Huang, Yinbin1,2; Liu, Huizhou1
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| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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| 出版日期 | 2014-09-05 |
| 卷号 | 457期号:SEP页码:160-168 |
| 关键词 | Hexavalent chromium PGMA Polyethylenimine Adsorption Equilibrium |
| ISSN号 | 0927-7757 |
| 其他题名 | Colloid Surf. A-Physicochem. Eng. Asp. |
| 中文摘要 | Polyethylenimine-grafted poly(glycidyl methacrylate) (PGMA-PEI) microspheres were prepared using the dispersion polymerization method and a two-step reaction with ethylenediamine (EDA) and polyethylenimine (PEI). The PGMA-PEI microspheres were then characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) and tested for their ability to remove hexavalent chromium (Cr(VI)) from an aqueous solution in batch tests. The results demonstrated that Cr(VI) adsorption depended significantly on pH. The optimized pH value for the Cr(VI) adsorption was 2.0. The adsorption isotherms of PGMA-PEI microspheres with Cr(VI) fit the Langmuir model. The maximum adsorption capacities were 460.83, 485.44 and 505.05 mg g(-1) for PGMA-PEI600, PGMA-PEI1800 and PGMA-PEI10,(172) microspheres, respectively. The adsorption reached equilibrium within 10min and the experimental data fit the pseudo-second-order model. The obtained thermodynamic parameters (Delta G(0), Delta H-0 and Delta S-0) showed that the adsorption of Cr(VI) was an endothermic and spontaneous process. Competition from coexisting ions of K+, Na+, Ca2+, Cu2+, Cl-, NO3-, H2PO4-, and HPO42- was insignificant except SO42-. The regeneration study revealed that PGMA-PEI microspheres could be repeatedly used with no significant loss of adsorption efficiency. (C) 2014 Elsevier B.V. All rights reserved. |
| 英文摘要 | Polyethylenimine-grafted poly(glycidyl methacrylate) (PGMA-PEI) microspheres were prepared using the dispersion polymerization method and a two-step reaction with ethylenediamine (EDA) and polyethylenimine (PEI). The PGMA-PEI microspheres were then characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) and tested for their ability to remove hexavalent chromium (Cr(VI)) from an aqueous solution in batch tests. The results demonstrated that Cr(VI) adsorption depended significantly on pH. The optimized pH value for the Cr(VI) adsorption was 2.0. The adsorption isotherms of PGMA-PEI microspheres with Cr(VI) fit the Langmuir model. The maximum adsorption capacities were 460.83, 485.44 and 505.05 mg g(-1) for PGMA-PEI600, PGMA-PEI1800 and PGMA-PEI10,(172) microspheres, respectively. The adsorption reached equilibrium within 10min and the experimental data fit the pseudo-second-order model. The obtained thermodynamic parameters (Delta G(0), Delta H-0 and Delta S-0) showed that the adsorption of Cr(VI) was an endothermic and spontaneous process. Competition from coexisting ions of K+, Na+, Ca2+, Cu2+, Cl-, NO3-, H2PO4-, and HPO42- was insignificant except SO42-. The regeneration study revealed that PGMA-PEI microspheres could be repeatedly used with no significant loss of adsorption efficiency. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | HEXAVALENT CHROMIUM ; ACTIVATED CARBON ; WASTE-WATER ; COMPOSITE MICROSPHERES ; AMINO-GROUPS ; REMOVAL ; KINETICS ; IONS ; POLYMERIZATION ; NANOPARTICLES |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000340340600021 |
| 公开日期 | 2014-09-30 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11519]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100149, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Xitong,Yang, Liangrong,Xing, Huifang,et al. High capacity adsorption of Cr(VI) from aqueous solution using polyethylenimine-functionalized poly(glycidyl methacrylate) microspheres[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2014,457(SEP):160-168. |
| APA | Sun, Xitong.,Yang, Liangrong.,Xing, Huifang.,Zhao, Junmei.,Li, Xiaopei.,...&Liu, Huizhou.(2014).High capacity adsorption of Cr(VI) from aqueous solution using polyethylenimine-functionalized poly(glycidyl methacrylate) microspheres.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,457(SEP),160-168. |
| MLA | Sun, Xitong,et al."High capacity adsorption of Cr(VI) from aqueous solution using polyethylenimine-functionalized poly(glycidyl methacrylate) microspheres".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 457.SEP(2014):160-168. |
入库方式： OAI收割
来源：过程工程研究所
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