Chemical transformation of zinc oxide nanoparticles as a result of interaction with hydroxyapatite
文献类型：期刊论文
| 作者 | Lv, Jitao ; Zhang, Shuzhen ; Wang, Songshan ; Luo, Lei ; Huang, Hongling ; Zhang, Jing |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2014 |
| 卷号 | 461期号:1页码:126-132 |
| 关键词 | ZnO nanoparticle Chemical transformation Hydroxyapatite XAFS |
| ISSN号 | 0927-7757 |
| 中文摘要 | Recent studies have revealed that zinc phosphate is an important transformation product of zinc oxide nanoparticles (ZnO NPs) in the environment, and the role of soluble phosphate in the transformation of ZnO NPs to zinc phosphate has been confirmed. However, whether insoluble phosphate that exists widely in the environment can induce chemical transformation of ZnO NPs has not been addressed. Therefore, transformation of ZnO NPs in the presence of hydroxyapatite (HAP), selected as representative of insoluble phosphate, at different pH was investigated in the present study. Transformation products were identified by employing X-ray diffraction and synchrotron based X-ray absorption fine structure spectroscopy. The results indicate that under acidic condition (pH 5) phosphate ion (PO43-) and calcium anion (Ca2+) were released from HAP in aqueous solution, inducing a rapid transformation of about 80% ZnO NPs to scholzite within 4 h. Under neutral or basic conditions (pH 7 and 9) the adsorption of Zn2+ on HAP resulted in a slow transformation of about 60% ZnO NPs to amorphous inner-sphere Zn adsorption complexes within 30 days. This work suggests the important role of HAP in the transformation of ZnO NPs and may affect the behavior, fate and toxic effects of ZnO NPs in the environment. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000343351400017 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9515]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Lv, Jitao,Zhang, Shuzhen,Wang, Songshan,et al. Chemical transformation of zinc oxide nanoparticles as a result of interaction with hydroxyapatite[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2014,461(1):126-132. |
| APA | Lv, Jitao,Zhang, Shuzhen,Wang, Songshan,Luo, Lei,Huang, Hongling,&Zhang, Jing.(2014).Chemical transformation of zinc oxide nanoparticles as a result of interaction with hydroxyapatite.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,461(1),126-132. |
| MLA | Lv, Jitao,et al."Chemical transformation of zinc oxide nanoparticles as a result of interaction with hydroxyapatite".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 461.1(2014):126-132. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。