Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| pH-dependent phosphatization of ZnO nanoparticles and its influence on subsequent lead sorption | |
| Xu, HC; Li, L; Lv, H; Liu, X; Jiang, HL; Xu, HC (reprint author), Chinese Acad Sci, Nanjing Inst Geog & Limnol, 73 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. | |
| 2016 | |
| Source Publication | ENVIRONMENTAL POLLUTION
 |
| ISSN | 0269-7491 |
| Volume | 208Issue:-Pages:723—731 |
| Subtype | 期刊文献 |
| Abstract | Phosphatization of ZnO nanoparticles (ZNPs) at various pHs and its influence on subsequent lead sorption were investigated. Results showed that, in presence of phosphate, both the chemical speciation and crystalline phase of ZNPs were pH dependent that most of them were converted to crystalline Zn-3(PO4)(2) at acidic pHs, but only little amorphous hopeites can be formed under alkaline condition. Phosphatization process significantly enhanced subsequent lead sorption with the order of acidic process > alkaline > pristine ZNPs. Spectroscopic analysis including ATR-FTIR and XPS revealed main mechanisms of lead phosphate precipitation and inner-sphere complexes for lead sorption on acidic and alkaline treatment products, respectively. The potential toxicity of ZNPs and heavy metals in eutrophic aquatic ecosystems would thus be reduced due to the ubiquitous phosphatization process. This study highlights the importance of environmental variables in exploring the environmental behavior and fate of heavy metals as well as nanoparticles in natural waters. (C) 2015 Elsevier Ltd. All rights reserved. |
| Keyword | Heavy-metal Ions Aqueous-solution Carbon Nanotubes Thin-films Adsorption Removal Glasses Xps Aggregation Dissolution |
| DOI | 10.1016/j.envpol.2015.10.052 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000368306500049 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/25800 |
| Collection | 中科院上海应用物理研究所2011-2019年 |
| Corresponding Author | Xu, HC (reprint author), Chinese Acad Sci, Nanjing Inst Geog & Limnol, 73 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. |
| Recommended Citation GB/T 7714 | Xu, HC,Li, L,Lv, H,et al. pH-dependent phosphatization of ZnO nanoparticles and its influence on subsequent lead sorption[J]. ENVIRONMENTAL POLLUTION,2016,208(-):723—731. |
| APA | Xu, HC,Li, L,Lv, H,Liu, X,Jiang, HL,&Xu, HC .(2016).pH-dependent phosphatization of ZnO nanoparticles and its influence on subsequent lead sorption.ENVIRONMENTAL POLLUTION,208(-),723—731. |
| MLA | Xu, HC,et al."pH-dependent phosphatization of ZnO nanoparticles and its influence on subsequent lead sorption".ENVIRONMENTAL POLLUTION 208.-(2016):723—731. |
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| pH-dependent phospha（2174KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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