Preparation of Fe-Co based MOF-74 and its effective adsorption of arsenic from aqueous solution

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

	Preparation of Fe-Co based MOF-74 and its effective adsorption of arsenic from aqueous solution
	Sun, Jianqiang ; Zhang, Xiaobing ; Zhang, Anping ; Liao, Chunyang
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2019-06
卷号	80 页码:197-207
关键词	Fe-Co MOF-74 Adsorbent Arsenite Arsenate Removal
ISSN号	1001-0742
英文摘要	To obtain a cost-effective adsorbent for the removal of arsenic in water, a novel nanostructured Fe-Co based metal organic framework (MOF-74) adsorbent was successfully prepared via a simple solvothermal method. The adsorption experiments showed that the optimal molar ratio of Fe/Co in the adsorbent was 2:1. The Fe2Co1 MOF-74 was characterized by various techniques and the results showed that the nanoparticle diameter ranged from 60 to 80 nm and the specific surface area was 147.82 m(2)/g. The isotherm and kinetic parameters of arsenic removal on Fe2Co1 MOF-74 were well-fitted by the Langmuir and pseudo-second-order models. The maximum adsorption capacities toward As(III) and As(V) were 266.52 and 292.29 mg/g, respectively. The presence of sulfate, carbonate and humic acid had no obvious effect on arsenic adsorption. However, coexisting phosphate significantly hindered the removal of arsenic, especially at high concentrations (10 mmol/ L). Electrostatic interaction and hydroxyl and metal-oxygen groups played important roles in the adsorption of arsenic. Furthermore, the prepared adsorbent had stable adsorption ability after regeneration and when used in a real-water matrix. The excellent adsorption performance of Fe2Co1 MOF-74 material makes it a potentially promising adsorbent for the removal of arsenic. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42993]
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
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 2.Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jianqiang,Zhang, Xiaobing,Zhang, Anping,et al. Preparation of Fe-Co based MOF-74 and its effective adsorption of arsenic from aqueous solution[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,80:197-207.
APA	Sun, Jianqiang,Zhang, Xiaobing,Zhang, Anping,&Liao, Chunyang.(2019).Preparation of Fe-Co based MOF-74 and its effective adsorption of arsenic from aqueous solution.JOURNAL OF ENVIRONMENTAL SCIENCES,80,197-207.
MLA	Sun, Jianqiang,et al."Preparation of Fe-Co based MOF-74 and its effective adsorption of arsenic from aqueous solution".JOURNAL OF ENVIRONMENTAL SCIENCES 80(2019):197-207.