CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Dissolution and Microstructural Transformation of ZnO Nanoparticles under the Influence of Phosphate
Lv, JT; Zhang, SZ; Luo, L; Han, W; Zhang, J; Yang, K; Christie, P
2012
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume46Issue:13
AbstractThe toxicity and fate of nanoparticles (NPs) have been reported to be highly dependent on the chemistry of the medium, and the effects of phosphate have tended to be ignored despite the wide existence of phosphate contamination in aqueous environments. In the present study the influence of phosphate on the dissolution and microstructural transformation of ZnO NPs was investigated. Phosphate at a low concentration rapidly and substantially reduced the release of Zn2+ into aqueous solution. Synchrotron X-ray absorption spectroscopy and X-ray diffraction analysis reveal that interaction between ZnO NPs and phosphate induced the transformation of ZnO into zinc phosphate. Transmission electronic microscopy observation shows that the morphology of the particles changed from structurally uniform nanosized spherical to anomalous and porous material containing mixed amorphous and crystalline phases of ZnO and zinc phosphate in the presence of phosphate. To our knowledge, this is the first study in which the detailed process of phosphate-induced speciation and microstructural transformation of ZnO NPs has been analyzed. In view of the wide existence of phosphate contamination in water and its strong metal-complexation capability, phosphate-induced transformations may play an important role in the behaviors, fate, and toxicity of many other metal-based nanomaterials in the environment.
Language英语
Funding Project应物所项目组
WOS IDWOS:000305876500043
Citation statistics
Cited Times:116[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13135
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Lv, JT,Zhang, SZ,Luo, L,et al. Dissolution and Microstructural Transformation of ZnO Nanoparticles under the Influence of Phosphate[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2012,46(13).
APA Lv, JT.,Zhang, SZ.,Luo, L.,Han, W.,Zhang, J.,...&Christie, P.(2012).Dissolution and Microstructural Transformation of ZnO Nanoparticles under the Influence of Phosphate.ENVIRONMENTAL SCIENCE & TECHNOLOGY,46(13).
MLA Lv, JT,et al."Dissolution and Microstructural Transformation of ZnO Nanoparticles under the Influence of Phosphate".ENVIRONMENTAL SCIENCE & TECHNOLOGY 46.13(2012).
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