Knowledge Management System Of Institute of process engineering,CAS
| Tailoring electronic configurations in adsorptive sites for the enhancement of As(V) removal from groundwater | |
| Tian, Kaixun1; Xiao, Jing1; Shen, Jian1; Zhao, He2 | |
| 2020-05-01 | |
| Source Publication | WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY
 |
| ISSN | 1606-9749 |
| Volume | 20Issue:3Pages:828-836 |
| Abstract | In the past few decades, heavy metal pollution, such as As(V), has become an important issue for aqueous environment safety. For reasons of practical feasibility and cost-effectiveness, adsorption has been widely used in the water treatment and reuse community, with rapid development of adsorbents. However, the precise control of the electronic configuration of the adsorbents' sites to enhance adsorption performance is largely unexplored. In this study, to demonstrate the effect of electronic configuration on adsorption performance, we synthesized granular activated carbon (GAC) supported Fe-based hydroxides adsorbents by varying the valence state in transition metals. Furthermore, the adsorbents are characterized by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM) to identify surface structure and morphological properties. Adsorptive performance studies show that the adsorption capacity and arsenic removal efficiency of Fe(II)-GAC are twice those of Fe(III)-GAC, as a matter of charge transfer between adsorbents and cationic pollution (such as Fe-O and As species). Finally, PO43- was selected as a control sample to confirm the rationality of the removal mechanism. Collectively, fine-tuning of the electronic configuration from charge transfer will not only benefit heavy metal removal channels, but also supply fundamental information for adsorbents design for organics removal. |
| Keyword | adsorption arsenic (V) removal electronic configurations iron oxide hydrate |
| DOI | 10.2166/ws.2019.197 |
| Language | 英语 |
| WOS Keyword | ARSENIC REMOVAL ; AQUEOUS-SOLUTION ; FERRIC-OXIDE ; WATER ; FE ; PB |
| Funding Project | National Natural Science Foundation of China[21707023] ; New Faculty Start-Up Funding from Xiangtan University[18QDZ16] ; Provincial Key Research and Development Plan of Hunan Province[2018SK2034] ; Provincial Key Research and Development Plan of Hunan Province[2018SK2018] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| WOS Subject | Engineering, Environmental ; Environmental Sciences ; Water Resources |
| Funding Organization | National Natural Science Foundation of China ; New Faculty Start-Up Funding from Xiangtan University ; Provincial Key Research and Development Plan of Hunan Province |
| WOS ID | WOS:000537271000007 |
| Publisher | IWA PUBLISHING |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/40996 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Shen, Jian |
| Affiliation | 1.Xiangtan Univ, Dept Environm & Resources, Hunan Engn Lab Complex Heavy Met Wastewater Purif, Xiangtan 411105, Peoples R China 2.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Tian, Kaixun,Xiao, Jing,Shen, Jian,et al. Tailoring electronic configurations in adsorptive sites for the enhancement of As(V) removal from groundwater[J]. WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY,2020,20(3):828-836. |
| APA | Tian, Kaixun,Xiao, Jing,Shen, Jian,&Zhao, He.(2020).Tailoring electronic configurations in adsorptive sites for the enhancement of As(V) removal from groundwater.WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY,20(3),828-836. |
| MLA | Tian, Kaixun,et al."Tailoring electronic configurations in adsorptive sites for the enhancement of As(V) removal from groundwater".WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY 20.3(2020):828-836. |
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