Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Incorporation of Pb(ii) into hematite during ferrihydrite transformation | |
| Lu, Yang1; Hu, Shiwen1; Liang, Zheng2; Zhu, Mengqiang3; Wang, Zimeng4; Wang, Xiaoming5; Liang, Yuzhen1; Dang, Zhi1; Shi, Zhenqing1 | |
| 2020-03-01 | |
| Source Publication | ENVIRONMENTAL SCIENCE-NANO
 |
| ISSN | 2051-8153 |
| Volume | 7Issue:3Pages:829-841 |
| Corresponding Author | Shi, Zhenqing(zqshi@scut.edu.cn) |
| Abstract | Ferrihydrite is ubiquitous in natural environments, and its transformation significantly influences the fate of heavy metals. Although Pb(ii) adsorption on iron oxides has been extensively studied, there is still a knowledge gap on the fate of Pb during the dynamic processes of iron oxide transformation. In this study, a set of wet chemistry experiments, spherical aberration corrected scanning transmission electron microscopy (Cs-STEM) integrated with energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and X-ray absorption spectroscopy (XAS) were used to unravel Pb interactions with iron oxides during ferrihydrite transformation processes under abiotic conditions. Wet chemistry experiments, STEM-EDS elemental mapping and line scans, and quantitative analysis suggested that Pb penetrated into hematite nanoparticles during the transformation processes. STEM analysis at sub-nanoscales, XRD fine scans, and XAS analysis provided evidence of Pb incorporation into the crystal structures of hematite nanoparticles, in which Pb distributed along the zone axis and enlarged the lattice distance of hematite. These results advanced our understanding of the dynamic interactions of Pb with iron oxides by offering new perspectives about the critical roles of chemical speciation, nano-scale spatial distribution, and atomic coordination environments in controlling the geochemical dynamics of heavy metals. |
| DOI | 10.1039/c9en01355e |
| WOS Keyword | ZERO-VALENT IRON ; URANIUM-MINE TAILINGS ; 2-LINE FERRIHYDRITE ; LEAD(II) SORPTION ; HUMIC-ACID ; HIGH PH ; CRYSTALLIZATION ; NANOPARTICLES ; ADSORPTION ; KINETICS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41573090] ; Fundamental Research Funds for the Central Universities[2018PY10] ; Natural Science Foundation of Guangdong[2018A030310394] |
| WOS Research Area | Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics |
| Funding Organization | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of Guangdong |
| WOS Subject | Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology |
| WOS ID | WOS:000522036000006 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26960 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Shi, Zhenqing |
| Affiliation | 1.South China Univ Technol, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Minist Educ, Sch Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.Univ Wyoming, Dept Ecosyst Sci & Management, Laramie, WY 82071 USA 4.Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China 5.Huazhong Agr Univ, Key Lab Arable Land Conservat Middle & Lower Reac, Minist Agr & Rural Affairs, Coll Resources & Environm, Wuhan 430070, Peoples R China |
| Recommended Citation GB/T 7714 | Lu, Yang,Hu, Shiwen,Liang, Zheng,et al. Incorporation of Pb(ii) into hematite during ferrihydrite transformation[J]. ENVIRONMENTAL SCIENCE-NANO,2020,7(3):829-841. |
| APA | Lu, Yang.,Hu, Shiwen.,Liang, Zheng.,Zhu, Mengqiang.,Wang, Zimeng.,...&Shi, Zhenqing.(2020).Incorporation of Pb(ii) into hematite during ferrihydrite transformation.ENVIRONMENTAL SCIENCE-NANO,7(3),829-841. |
| MLA | Lu, Yang,et al."Incorporation of Pb(ii) into hematite during ferrihydrite transformation".ENVIRONMENTAL SCIENCE-NANO 7.3(2020):829-841. |
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