Institutional Repository of Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
| Efficient sorption and reduction of U(VI) on zero-valent iron-polyaniline-graphene aerogel ternary composite | |
| Chen, Lili1,2; Feng, Shaojie1; Zhao, Donglin1; Chen, Shaohua1; Li, Feifei1; Chen, Changlun2,3 | |
| 2017-03-15 | |
| 发表期刊 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
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| 摘要 | In this work, zero-valent iron-polyaniline-graphene aerogel composite (Fe-PANI-GA) was prepared and applied in the removal of U(VI) from aqueous solutions by batch sorption experiments. The experimental results showed that the Fe-PANI-GA composite had an excellent removal capacity for the removal of U (VI) in acidic solutions. The results also showed that the maximum removal capacity of the Fe-PANI-GA toward U(VI) was 350.47 mg/g at pH 5.5. The sorption kinetics data were well-described by pseudo-second-order. The sorption isotherms of U(VI) fitted well with Langmuir isotherm and exhibited better removal efficiency with the increase of temperature. The thermodynamic parameters (AG, AS, AH) indicated that the sorption of U(VI) on the Fe-PANI-GA was an endothermic and spontaneous process. Moreover, removal mechanisms were studied based on the results of XRD, FTIR and XPS. Both U(VI) sorption and partially reductive precipitation of U(VI) to U(IV) contributed to the removal of U(VI) on Fe-PANI-GA. Therefore, Fe-PANI-GA was an economic and effective material for the removal of uranium from nuclear waste in practical application. (C) 2016 Elsevier Inc. All rights reserved. |
| 文章类型 | Article |
| 关键词 | u(Vi) Fe-pani-ga Composite Sorption |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.jcis.2016.11.050 |
| 关键词[WOS] | HEAVY-METAL IONS ; AQUEOUS-SOLUTION ; OXIDE NANOSHEETS ; HIGHLY-EFFICIENT ; PLASMA TECHNIQUE ; CARBON NANOTUBES ; ZEROVALENT IRON ; WASTE-WATER ; REMOVAL ; ADSORPTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China(21377005 ; National Natural Science Foundation of China(21377005 ; National Natural Science Foundation of China(21377005 ; National Natural Science Foundation of China(21377005 ; Natural Science Fund of Education Department of Anhui province(Ig2015ZD15) ; Natural Science Fund of Education Department of Anhui province(Ig2015ZD15) ; Natural Science Fund of Education Department of Anhui province(Ig2015ZD15) ; Natural Science Fund of Education Department of Anhui province(Ig2015ZD15) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Jiangsu Provincial ; Jiangsu Provincial ; Jiangsu Provincial ; Jiangsu Provincial ; Key Laboratory of Radiation Medicine and Protection, Chinese Academy of Science ; Key Laboratory of Radiation Medicine and Protection, Chinese Academy of Science ; Key Laboratory of Radiation Medicine and Protection, Chinese Academy of Science ; Key Laboratory of Radiation Medicine and Protection, Chinese Academy of Science ; Key Laboratory of Novel Thin Film Solar Cells, Chinese Academy of Science ; Key Laboratory of Novel Thin Film Solar Cells, Chinese Academy of Science ; Key Laboratory of Novel Thin Film Solar Cells, Chinese Academy of Science ; Key Laboratory of Novel Thin Film Solar Cells, Chinese Academy of Science ; 21477133 ; 21477133 ; 21477133 ; 21477133 ; 41273134) ; 41273134) ; 41273134) ; 41273134) |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| WOS记录号 | WOS:000393148300024 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/32820 |
| 专题 | 中科院等离子体物理研究所 |
| 作者单位 | 1.Anhui Jianzhu Univ, Key Lab Adv Funct Mat, Key Lab Funct Mol Design & Interface Proc, Hefei 230601, Peoples R China 2.Chinese Acad Sci, Key Lab Novel Thin Film Solar Cells, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China 3.Soochow Univ, Collaborat Innovat Ctr Radiat Med, Jiangsu Higher Educ Inst, Suzhou 215123, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Lili,Feng, Shaojie,Zhao, Donglin,et al. Efficient sorption and reduction of U(VI) on zero-valent iron-polyaniline-graphene aerogel ternary composite[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,490(无):197-206. |
| APA | Chen, Lili,Feng, Shaojie,Zhao, Donglin,Chen, Shaohua,Li, Feifei,&Chen, Changlun.(2017).Efficient sorption and reduction of U(VI) on zero-valent iron-polyaniline-graphene aerogel ternary composite.JOURNAL OF COLLOID AND INTERFACE SCIENCE,490(无),197-206. |
| MLA | Chen, Lili,et al."Efficient sorption and reduction of U(VI) on zero-valent iron-polyaniline-graphene aerogel ternary composite".JOURNAL OF COLLOID AND INTERFACE SCIENCE 490.无(2017):197-206. |
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