pH-dependent phosphatization of ZnO nanoparticles and its influence on subsequent lead sorption
文献类型：期刊论文
| 作者 | Xu, HC; Li, L; Lv, H; Liu, X; Jiang, HL |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2016 |
| 卷号 | 208期号:-页码:723—731 |
| 关键词 | HEAVY-METAL IONS AQUEOUS-SOLUTION CARBON NANOTUBES THIN-FILMS ADSORPTION REMOVAL GLASSES XPS AGGREGATION DISSOLUTION |
| ISSN号 | 0269-7491 |
| 通讯作者 | Xu, HC (reprint author), Chinese Acad Sci, Nanjing Inst Geog & Limnol, 73 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. |
| 英文摘要 | 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000368306500049 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/25800]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 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.(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. |
入库方式： OAI收割
来源：上海应用物理研究所
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