Synthesis, characterization, thermodynamic and kinetic investigations on uranium (VI) adsorption using organic-inorganic composites: Zirconyl-molybdopyrophosphate-tributyl phosphate

doi:10.1007/s11426-013-5001-y

	Synthesis, characterization, thermodynamic and kinetic investigations on uranium (VI) adsorption using organic-inorganic composites: Zirconyl-molybdopyrophosphate-tributyl phosphate
	Zhou ShiMin 1; Chen BaiHua 1,2; Li Yuan 1; Guo JingWei 1; Cai XiaoJiao 1; Qin Zhi3 ; Bai Jing3 ; Na Ping 1
刊名	SCIENCE CHINA-CHEMISTRY
	2013-11-01
卷号	56 页码:1516-1524
关键词	Zirconyl-molybdopyroPhosphate-tributyl Phosphate Uranium Adsorption Kinetics Adsorption Thermodynamics
ISSN号	1674-7291
DOI	10.1007/s11426-013-5001-y
文献子类	Article
英文摘要	Zirconyl-molybdopyrophosphate-tributyl phosphate (ZMPP-TBP) was a novel organic-inorganic composite adsorbent prepared by co-precipitation method and used in the adsorption of uranium from aqueous solution in batch adsorption experiments. The as-obtained product was characterized using SEM, energy dispersive X-ray spectroscopy (EDX), XRD and BET-N-2 adsorption measurements. The study had been conducted to investigate the effects of solution pH, temperature, contact time, initial concentration and coexisting ions. A maximum removal of 99.31% was observed for an initial concentration 5 mg/L, at pH 6.0 and an adsorbent dose of 1.0 g/L. The isothermal data were fitted with both Langmuir and Freundlich equations, but the data fitted the former better than the latter. According to the evaluation using the Langmuir equation, the maximum adsorption capacity of uranium (VI) was 196.08 mg/g at 293 K and pH 6.0. The pseudo-first-order kinetic model and pseudo-second-order kinetic model were used to describe the kinetic data, and the pseudo-second-order kinetic model was better. The thermodynamic parameter Delta G was calculated, the negative Delta G values of uranium (VI) at different temperature showed that the adsorption process was spontaneous. The good reusability of ZMPP-TBP also indicated that the ZMPP-TBP was a very promising adsorbent for uranium adsorption from aqueous solution.
资助项目	Project of Ocean with Scientific Technology in Tianjin[KJXH2011-10]
WOS关键词	AQUEOUS-SOLUTIONS ; SOLVENT-EXTRACTION ; REMOVAL ; SEPARATION ; RESIN ; U(VI) ; HEMATITE ; SORPTION ; IMPACT ; UO22+
WOS研究方向	Chemistry
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000326327500005
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48081]
专题	近代物理研究所_实验物理中心
通讯作者	Na Ping
作者单位	1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 2.China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhou ShiMin,Chen BaiHua,Li Yuan,et al. Synthesis, characterization, thermodynamic and kinetic investigations on uranium (VI) adsorption using organic-inorganic composites: Zirconyl-molybdopyrophosphate-tributyl phosphate[J]. SCIENCE CHINA-CHEMISTRY,2013,56:1516-1524.
APA	Zhou ShiMin.,Chen BaiHua.,Li Yuan.,Guo JingWei.,Cai XiaoJiao.,...&Na Ping.(2013).Synthesis, characterization, thermodynamic and kinetic investigations on uranium (VI) adsorption using organic-inorganic composites: Zirconyl-molybdopyrophosphate-tributyl phosphate.SCIENCE CHINA-CHEMISTRY,56,1516-1524.
MLA	Zhou ShiMin,et al."Synthesis, characterization, thermodynamic and kinetic investigations on uranium (VI) adsorption using organic-inorganic composites: Zirconyl-molybdopyrophosphate-tributyl phosphate".SCIENCE CHINA-CHEMISTRY 56(2013):1516-1524.