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Removal of U(VI) from Aqueous Solution by Amino Functionalized Flake Graphite Prepared by Plasma Treatment

文献类型：期刊论文

作者Duan, Shengxia1,2; Wang, Yanan1,2; Liu, Xia1,2; Shao, Dadong1; Hayat, Tawwar3; Alsaedi, Ahmed3; Li, Jiaxing1,4
刊名ACS SUSTAINABLE CHEMISTRY & ENGINEERING
出版日期2017-05-01
卷号5期号:5页码:4073-4085
关键词Flake Graphite Plasma Treatment Adsorption u(Vi)
DOI10.1021/acssuschemeng.7b00069
文献子类Article
英文摘要Flake graphite (FG) with high uranium(VI) entrapment efficiency was successfully fabricated via a simple and efficient nonthermal plasma treatment method. FG was modified with -NH2 functional groups through nonthermal plasma with different treatment times under vacuum conditions. The modified FG samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transformed infrared spectroscopy (FT-IR spectra), thermogravimetric analysis (TGA), BET surface area measurements, and zeta potential. FG samples with different treatment times are used as contrast adsorbents for U(VI) entrapment. The adsorption experiments show that the modified FG has higher high U(VI) entrapment efficiency than others, and longer treatment time results in higher efficiency, demonstrating that the plasma treatment can greatly increase the active sites of FG samples and lead to the successful grafting of -NH2 on FG surface. The -NH2 modified FG with 2 h treatment time shows the highest adsorption capacity with 140.68 mg.g(-1) among the five samples at 333.15 K. Thermodynamic studies reveal that the U(VI) entrapment process is spontaneous and entropy-driven endothermic. XPS studies reveal that the adsorption mechanism for U(VI) entrapment is achieved through the complexation of U(VI) with both -NH2 and phenolic hydroxyl group on the surface of modified FG. Moreover, desorption studies exhibit that PTFG-4 can be used repeatedly and adsorption capacity only shows slight decrease after five cycles. Thus, it can be concluded that the nonthermal plasma treatment can be used as an effective method for the fabrication of adsorbents with great adsorption performance for heavy metals entrapment.
WOS关键词MULTIWALLED CARBON NANOTUBES ; GRAPHENE OXIDE NANOSHEETS ; EFFICIENT REMOVAL ; SILICA PARTICLES ; ACTIVATED CARBON ; URANIUM VI ; ADSORPTION ; COMPOSITES ; SORPTION ; IONS
WOS研究方向Chemistry ; Engineering
语种英语
WOS记录号WOS:000400634900057
资助机构National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; National Natural Science Foundation of China(21677146 ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; 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special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; special scientific research fund of public welfare profession of China(201509074) ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33487]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Key Lab Novel Thin Film Solar Cells, POB 1126, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.King Abdulaziz Univ, Fac Sci, Jeddah 21589, Saudi Arabia
4.Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Suzhou, Peoples R China
推荐引用方式
GB/T 7714		 Duan, Shengxia,Wang, Yanan,Liu, Xia,et al. Removal of U(VI) from Aqueous Solution by Amino Functionalized Flake Graphite Prepared by Plasma Treatment[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(5):4073-4085.
APA Duan, Shengxia.,Wang, Yanan.,Liu, Xia.,Shao, Dadong.,Hayat, Tawwar.,...&Li, Jiaxing.(2017).Removal of U(VI) from Aqueous Solution by Amino Functionalized Flake Graphite Prepared by Plasma Treatment.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(5),4073-4085.
MLA Duan, Shengxia,et al."Removal of U(VI) from Aqueous Solution by Amino Functionalized Flake Graphite Prepared by Plasma Treatment".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.5(2017):4073-4085.

入库方式： OAI收割

来源：合肥物质科学研究院

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