Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology
	Liu, Bao; Jian, Meipeng; Liu, Ruiping; Yao, Jianfeng; Zhang, Xiwang
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2015-09-20
卷号	481 页码:358-366
关键词	Zeolitic imidazolate frameworks Sorption Arsenite Mechanism
英文摘要	In this study, zeolitic imidazolate frameworks (ZIFs) sorbents with three different morphology (cubic ZIFs, leaf-shaped ZIFs and dodecahedral ZIFs) were successfully synthesized in aqueous solution via green methods at room temperature and tested for removal of As(III). The ZIFs are all high crystalline, and with a BET surface area of 958.4, 12.7 and 1151.2 m(2)/g for cubic ZIFs, leaf-shaped ZIFs and dodecahedral ZIFs, respectively The experiment revealed that all three adsorbents exhibited excellent adsorption capacities of As(III) despite distinct specific surface area and morphology. The adsorption isotherms of cubic ZIFs, leaf-shaped ZIFs and dodecahedral ZIFs were generally fitted by Langmuir model and the maximum adsorption capacities were 122.6, 108.1, 117.5 mg/g, respectively at pH 8.5. At initial concentration of 200 mu g/L, As(III) was rapidly decreased to below 10 mu g/L by the three ZIFs in 2 h at a adsorbent dosage of 0.2 g/L. It was found that zinc hydroxyl substitution was the main surface complexation method for As(III) adsorption onto the three ZIFs evidenced by the FTIR and XPS results. (C) 2015 Elsevier B.V. All rights reserved.
研究领域[WOS]	Chemistry, Physical
WOS记录号	WOS:000360407700045
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32590]
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	Liu, Bao,Jian, Meipeng,Liu, Ruiping,et al. Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2015,481:358-366.
APA	Liu, Bao,Jian, Meipeng,Liu, Ruiping,Yao, Jianfeng,&Zhang, Xiwang.(2015).Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,481,358-366.
MLA	Liu, Bao,et al."Highly efficient removal of arsenic(III) from aqueous solution by zeolitic imidazolate frameworks with different morphology".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 481(2015):358-366.