RCEES OpenIR  > 中国科学院饮用水科学与技术重点实验室
Sustaining reactivity of Fe-0 for nitrate reduction via electron transfer between dissolved Fe2+ and surface iron oxides
Han, Luchao; Yang, Li; Wang, Haibo; Hu, Xuexiang; Chen, Zhan; Hu, Chun
2016-05-05
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
Volume308Issue:0Pages:208-215
AbstractThe mechanism of the effects of Fe-aq(2+) on the reduction of NO3- by Fe-0 was investigated. The effects of initial pH on the rate of NO3- reduction and the Fe-0 surface characteristics revealed Fe-aq(2+) and the characteristics of minerals on the surface of Fe-0 played an important role in NO3- reduction. Both NO3- reduction and the decrease of Fe-aq(2+) exhibited similar kinetics and were promoted by each other. This promotion was associated with the types of the surface iron oxides of Fe-0. Additionally, further reduction of NO3- produced more surface iron oxides, supplying more active sites for Fe-aq(2+), resulting in more electron transfer between Fe2+ and surface iron oxides and a higher reaction rate. Using the isotope specificity of Fe-57 Mossbauer spectroscopy, it was verified that the Fe-aq(2+) was continuously converted into Fe3+ oxides on the surface of Fe-0 and then converted into Fe3O4 via electron transfer between Fe2+ and the pre-existing surface Fe3+ oxides. Electrochemistry measurements confirmed that the spontaneous electron transfer between the Fe2+ and structural Fe3+ species accelerated the interfacial electron transfer between the Fe species and NO3-. This study provides a new insight into the interaction between Fe species and contaminants and interface electron transfer. (C) 2016 Elsevier B.V. All rights reserved.
Department中国科学院饮用水科学与技术重点实验室
KeywordFerrous Iron Interface Electron Transfer Iron Oxides Zero-valent Iron
DOI10.1016/j.jhazmat.2016.01.047
Indexed BySCI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/36214
Collection中国科学院饮用水科学与技术重点实验室
Recommended Citation
GB/T 7714
Han, Luchao,Yang, Li,Wang, Haibo,et al. Sustaining reactivity of Fe-0 for nitrate reduction via electron transfer between dissolved Fe2+ and surface iron oxides[J]. JOURNAL OF HAZARDOUS MATERIALS,2016,308(0):208-215.
APA Han, Luchao,Yang, Li,Wang, Haibo,Hu, Xuexiang,Chen, Zhan,&Hu, Chun.(2016).Sustaining reactivity of Fe-0 for nitrate reduction via electron transfer between dissolved Fe2+ and surface iron oxides.JOURNAL OF HAZARDOUS MATERIALS,308(0),208-215.
MLA Han, Luchao,et al."Sustaining reactivity of Fe-0 for nitrate reduction via electron transfer between dissolved Fe2+ and surface iron oxides".JOURNAL OF HAZARDOUS MATERIALS 308.0(2016):208-215.
Files in This Item: Download All
File Name/Size DocType Version Access License
Sustaining reactivit(1118KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Han, Luchao]'s Articles
[Yang, Li]'s Articles
[Wang, Haibo]'s Articles
Baidu academic
Similar articles in Baidu academic
[Han, Luchao]'s Articles
[Yang, Li]'s Articles
[Wang, Haibo]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Han, Luchao]'s Articles
[Yang, Li]'s Articles
[Wang, Haibo]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Sustaining reactivity of Fe-0 for nitrate reduction via electron transfer between dissolved Fe2+ and surface iron oxides.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.