Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles
	Jian, Meipeng ; Liu, Bao ; Zhang, Gaosheng ; Liu, Ruiping ; Zhang, Xiwang
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2015-01-20
卷号	465 页码:67-76
关键词	Zeolitic imidazolate framework-8 Arsenic Adsorption Zeta potential Mechanisms
ISSN号	0927-7757
通讯作者	Liu, RP (reprint author), Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China. liuruiping@rcees.ac.cn ; xiwang.zhang@monash.edu
产权排序	[Jian, Meipeng; Liu, Bao; Liu, Ruiping] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China; [Zhang, Gaosheng] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Proc, Yantai 264003, Shandong, Peoples R China; [Zhang, Xiwang] Monash Univ, Dept Chem Engn, Clayton, Vic 3800, Australia
中文摘要	In this study, zeolitic imidazolate framework-8 (ZIF-8) nanosorbent was successfully synthesized via a facile method at room temperature. The ZIF-8 nanoparticles were characterized by nitrogen sorption, powder X-ray diffraction, field emission scanning electron microscope, transmission electron microscopy and Zeta potential. The synthesized ZIF-8 nanoparticles exhibited a high surface area of 1063.5 m(2)/g and were of 200-400 nm in particle size. The kinetic and isotherm data of arsenic adsorption on ZIF-8 were well fitted by pseudo-second-order and Langmuir models, respectively. The maximal adsorption capacities of As(III) and As(V) were of 49.49 and 60.03 mg/g, respectively, at T = 25 degrees C and pH 7.0. The ZIP-8 nanoparticles were stable at neutral and basic conditions. However, large amounts of Zn2+ were released into water from the sorbent at acidic condition, which dramatically hindered the adsorption of arsenic. SO42- and NO3- had no significant effect on the arsenic adsorption while the adsorption was significantly inhibited by PO43- and CO32-. X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy analysis revealed that electrostatic attraction and hydroxyl and amine groups on ZIF-8 surface played vital roles in the adsorption process. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Chemistry, Physical
研究领域[WOS]	National Natural Science Foundation of China [51328803] ; Joint Research Fund for Overseas Chinese Scholars
关键词[WOS]	METAL-ORGANIC FRAMEWORKS ; AS(III) REMOVAL ; OXIDE ADSORBENT ; BINARY OXIDE ; SURFACE ; SPECTROSCOPY ; MECHANISM ; AS(V) ; SORPTION ; WATER
收录类别	SCI
语种	英语
WOS记录号	WOS:000345556500010
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8662]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室烟台海岸带研究所_污染过程与控制实验室
推荐引用方式 GB/T 7714	Jian, Meipeng,Liu, Bao,Zhang, Gaosheng,et al. Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2015,465:67-76.
APA	Jian, Meipeng,Liu, Bao,Zhang, Gaosheng,Liu, Ruiping,&Zhang, Xiwang.(2015).Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,465,67-76.
MLA	Jian, Meipeng,et al."Adsorptive removal of arsenic from aqueous solution by zeolitic imidazolate framework-8 (ZIF-8) nanoparticles".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 465(2015):67-76.