Rapid remediation of Cd(II)-contaminated water using a magnetically collectable iron-based primary battery

doi:10.1016/j.jece.2022.107191

	Rapid remediation of Cd(II)-contaminated water using a magnetically collectable iron-based primary battery
	Guo, Xinyue 1,2; Hu, Yanqiu 3; Chen, Chaowen 1,5; Zhang, Jia 1,5; Yang, Pengqi 1,2; Du, Yue 1,5; Wang, Dongfang 4; Cai, Dongqing 4; Wu, Zhengyan 1,5
刊名	JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
	2022-04-01
卷号	10
关键词	Cadmium ion Water remediation Nanoscale zero-valent iron Primary battery Magnetic collectability
ISSN号	2213-2929
DOI	10.1016/j.jece.2022.107191
通讯作者	Zhang, Jia(zhangj@iim.ac.cn) ; Cai, Dongqing(dqcai@dhu.edu.cn) ; Wu, Zhengyan(zywu@ipp.ac.cn)
英文摘要	Remediation of cadmium ion in polluted water suffers from high cost and low efficiency. Nanoscale zero-valent iron (NZVI) was able to extract Cd(II) from water effectively, but the liability to aggregate greatly limits its broad application. Herein, we develop a promising remedy (CCP@NZVI) for the rapid and efficient removal of Cd(II) in water by facile coating conductive carbon paint (CCP) on NZVI. Compared with NZVI alone, CCP@NZVI shows enhanced efficiency, achieving removal up to 95% in 5 min at a low dose (0.67 g/L). We demonstrated the validity of a build-in primary battery as the driving force for the removal of Cd(II). In water contaminated by Cd (II), NZVI acting as the anode tends to be oxidized to ferrous ion and transfers electron to CCP as the cathode, wherein dissolved O-2 is reduced to OH- for interfacial Cd(II) precipitation. A panel of characterization techniques including scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray powder diffraction, and open circuit potential, have been used to analyze CCP@NZVI before and after the reactions, verifying the immobili-zation of absorbed Cd(II) in CCP@NZVI as Cd(OH)(2). In addition, this method exhibits good stability against weak acid and coexisting anions with satisfactory biosafety. Importantly, the Cd-immobilized CCP@NZVI after treatment can be easily separated via weak magnetic field. This study provides a novel strategy to achieve rapid Cd(II) removal at low-cost and with collectability, which may have a tremendous application prospect in environment fields including water treatment and soil detoxication.
资助项目	Science and Technology Service Program of Chinese Academy of Sciences[KFJ-STS-QYZD-115] ; National Key Research and Development Program of China[2018YFD0300903-4] ; Key R&D Program of Ningxia Province[2018BBF02021] ; National Natural Science Foundation of China[52000025] ; Fundamental Research Funds for the Central Universities[2232020D-22] ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences[YZJJZX202013] ; Open Research Fund of Key Laboratory of High Magnetic Field and Ion Beam Physical Biology
WOS关键词	AQUEOUS-SOLUTION ; HEAVY-METALS ; CADMIUM ION ; EFFICIENT REMOVAL ; NANOPARTICLES ; SEQUESTRATION ; PRECIPITATION ; SPECTROSCOPY ; REDUCTION ; ADSORBENT
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000788080100002
资助机构	Science and Technology Service Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; Key R&D Program of Ningxia Province ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences ; Open Research Fund of Key Laboratory of High Magnetic Field and Ion Beam Physical Biology
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131571]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Jia; Cai, Dongqing; Wu, Zhengyan
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Hefei No 8 High Sch, Hefei 230071, Peoples R China 4.Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China 5.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Environm Toxicol & Pollut Control Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xinyue,Hu, Yanqiu,Chen, Chaowen,et al. Rapid remediation of Cd(II)-contaminated water using a magnetically collectable iron-based primary battery[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2022,10.
APA	Guo, Xinyue.,Hu, Yanqiu.,Chen, Chaowen.,Zhang, Jia.,Yang, Pengqi.,...&Wu, Zhengyan.(2022).Rapid remediation of Cd(II)-contaminated water using a magnetically collectable iron-based primary battery.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,10.
MLA	Guo, Xinyue,et al."Rapid remediation of Cd(II)-contaminated water using a magnetically collectable iron-based primary battery".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 10(2022).