Hexavalent chromium removal by a new composite system of dissimilatory iron reduction bacteria Aeromonas hydrophila and nanoscale zero-valent iron

doi:10.1016/j.cej.2019.01.030

	Hexavalent chromium removal by a new composite system of dissimilatory iron reduction bacteria Aeromonas hydrophila and nanoscale zero-valent iron
	Xie, Bo 3; Ai, Zhihui 2; Zhang, Lizhi 2; Yang, Dandan 3; Liu, Limin 3; Jiang, Xiaofang 3; Zheng, Ningning 3; Yang, Kai 3; Shen, Wenjuan 2; Shi, Zunji 1,3
刊名	CHEMICAL ENGINEERING JOURNAL
	2019-04-15
卷号	362 页码:63-70
关键词	Nanoscale zero-valent iron Aeromonas hydrophila Hexavalent chromium Anoxic reduction
ISSN号	1385-8947
DOI	10.1016/j.cej.2019.01.030
英文摘要	Core-shell Fe@Fe2O3 nanowire is one special nanoscale zero-valent iron (NZVI) with an iron core and an outside shell of iron oxide containing the surface bound ferrous ions, which has been used to remove various pollutants including Cr(VI). However, it can be easily oxidized to accumulate iron oxides on the shell, resulting in the loss of reactive activity during its long-term application. Therefore, the dissolution of iron oxides by reduction is required to maintain NZVI reactivity. In this study, we combine NZVI and a dissimilatory iron reduction bacteria (DIRB), Aeromonas hydrophila HS01, to establish a composite system for a sustainable anoxic reduction of Cr(VI). HS01 can stably coexist with NZVI, reduce the oxidized Fe on NZVI and generate more dissolved Fe(II) under anoxic conditions. This presence of HS01 can maintain the core-shell structured morphology and relatively more Fe-0 and Fe(II) on NZVI surface, and enhance the reactivity in Cr(VI) removal. Our results indicated that a suitable DIRB can be used to prolong the reactivity of NZVI, and their combination is an efficient method for anoxic Cr(VI) removal.
资助项目	Hubei Natural Science Foundation[2017CFB164] ; China Post-doctoral Science Foundation[2015M582247] ; National Natural Science Foundation of China[31570098] ; self-determined research funds of CCNU from the college's basic research and operation of MOE[CCNU14KFY002] ; self-determined research funds of CCNU from the college's basic research and operation of MOE[CCNU16A05009] ; self-determined research funds of CCNU from the college's basic research and operation of MOE[CCNU16GD014]
WOS关键词	ANOXIC CR(VI) REMOVAL ; CORE-SHELL NANOWIRES ; FE-AT-FE2O3 NANOWIRES ; REDUCING BACTERIA ; FE(III) OXIDE ; NANOPARTICLES ; REMEDIATION ; GROWTH ; BATCH ; SOIL
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000457863500007
资助机构	Hubei Natural Science Foundation ; Hubei Natural Science Foundation ; China Post-doctoral Science Foundation ; China Post-doctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; self-determined research funds of CCNU from the college's basic research and operation of MOE ; self-determined research funds of CCNU from the college's basic research and operation of MOE ; Hubei Natural Science Foundation ; Hubei Natural Science Foundation ; China Post-doctoral Science Foundation ; China Post-doctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; self-determined research funds of CCNU from the college's basic research and operation of MOE ; self-determined research funds of CCNU from the college's basic research and operation of MOE ; Hubei Natural Science Foundation ; Hubei Natural Science Foundation ; China Post-doctoral Science Foundation ; China Post-doctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; self-determined research funds of CCNU from the college's basic research and operation of MOE ; self-determined research funds of CCNU from the college's basic research and operation of MOE ; Hubei Natural Science Foundation ; Hubei Natural Science Foundation ; China Post-doctoral Science Foundation ; China Post-doctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; self-determined research funds of CCNU from the college's basic research and operation of MOE ; self-determined research funds of CCNU from the college's basic research and operation of MOE
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/14372]
专题	中国科学院武汉物理与数学研究所
通讯作者	Xie, Bo; Ai, Zhihui
作者单位	1.Chinese Acad Sci, Key Lab Magnet Resonance Biol Syst, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance,Wuhan Inst Phys & Math, Wuhan 430079, Hubei, Peoples R China 2.Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Hubei, Peoples R China 3.Cent China Normal Univ, Hubei Key Lab Genet Regulat & Integrat Biol, Sch Life Sci, Wuhan 430079, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Xie, Bo,Ai, Zhihui,Zhang, Lizhi,et al. Hexavalent chromium removal by a new composite system of dissimilatory iron reduction bacteria Aeromonas hydrophila and nanoscale zero-valent iron[J]. CHEMICAL ENGINEERING JOURNAL,2019,362:63-70.
APA	Xie, Bo.,Ai, Zhihui.,Zhang, Lizhi.,Yang, Dandan.,Liu, Limin.,...&Shi, Zunji.(2019).Hexavalent chromium removal by a new composite system of dissimilatory iron reduction bacteria Aeromonas hydrophila and nanoscale zero-valent iron.CHEMICAL ENGINEERING JOURNAL,362,63-70.
MLA	Xie, Bo,et al."Hexavalent chromium removal by a new composite system of dissimilatory iron reduction bacteria Aeromonas hydrophila and nanoscale zero-valent iron".CHEMICAL ENGINEERING JOURNAL 362(2019):63-70.