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Aggregation, sedimentation, and dissolution of CuO and ZnO nanoparticles in five waters.
Environ Sci Pollut Res Int. 2018 Nov; 25(31):31240-31249.ES

Abstract

With the accelerated application of copper oxide (CuO) and zinc oxide (ZnO) nanoparticles (NPs) in commercial products, concerns about the potential impacts on the environment have been growing. Environmental behaviors of NPs are expected to significantly influence their fate and ecological risk in the aquatic environment. In this study, the environmental behaviors of two metallic NPs (CuO and ZnO NPs), including aggregation, sedimentation, and dissolution, were systematically evaluated in five representative waters (pool water, lake water, rainwater, tap water, and wastewater) with varying properties. Remarkable aggregation, sedimentation, and dissolution were observed for both metallic NPs, among which ZnO NPs exhibited greater influence. CuO (ZnO) NPs aggregated to 400 (500) nm, 500 (900) nm, and 800 (1500) nm in lake water, wastewater, and tap water, respectively. The sedimentation rates of CuO and ZnO NPs in the five waters were ranked as tap water > wastewater > lake water > pool water > rainwater. The dissolution of CuO and ZnO NPs in waters follows a first-order reaction rate model and is affected by ionic type, ionic strength (IS), and NOM (natural organic matter) concentrations. Redundancy analysis (RDA) indicated that the aggregation and sedimentation of NPs have a strong correlation, insofar as the sedimentation rates increase with increasing aggregation rates. The aggregation and dissolution of NPs have a negative correlation, insofar as the dissolution rates reduce with increasing aggregation rates. The aggregation, sedimentation, and dissolution of NPs can be influenced by ionic types, IS, and TOC in waters, among which, TOC may the dominant factor.

Authors+Show Affiliations

Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. hhuhjyhj@126.com. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China. hhuhjyhj@126.com.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. lzmiao@hhu.edu.cn. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China. lzmiao@hhu.edu.cn.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, People's Republic of China. College of Environment, Hohai University, 1 Xikang Road, Nanjing, 210098, People's Republic of China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30191530

Citation

Liu, Zhilin, et al. "Aggregation, Sedimentation, and Dissolution of CuO and ZnO Nanoparticles in Five Waters." Environmental Science and Pollution Research International, vol. 25, no. 31, 2018, pp. 31240-31249.
Liu Z, Wang C, Hou J, et al. Aggregation, sedimentation, and dissolution of CuO and ZnO nanoparticles in five waters. Environ Sci Pollut Res Int. 2018;25(31):31240-31249.
Liu, Z., Wang, C., Hou, J., Wang, P., Miao, L., Lv, B., Yang, Y., You, G., Xu, Y., Zhang, M., & Ci, H. (2018). Aggregation, sedimentation, and dissolution of CuO and ZnO nanoparticles in five waters. Environmental Science and Pollution Research International, 25(31), 31240-31249. https://doi.org/10.1007/s11356-018-3123-7
Liu Z, et al. Aggregation, Sedimentation, and Dissolution of CuO and ZnO Nanoparticles in Five Waters. Environ Sci Pollut Res Int. 2018;25(31):31240-31249. PubMed PMID: 30191530.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Aggregation, sedimentation, and dissolution of CuO and ZnO nanoparticles in five waters. AU - Liu,Zhilin, AU - Wang,Chao, AU - Hou,Jun, AU - Wang,Peifang, AU - Miao,Lingzhan, AU - Lv,Bowen, AU - Yang,Yangyang, AU - You,Guoxiang, AU - Xu,Yi, AU - Zhang,Mingzhi, AU - Ci,Hanlin, Y1 - 2018/09/06/ PY - 2017/09/20/received PY - 2018/08/31/accepted PY - 2018/9/8/pubmed PY - 2019/1/10/medline PY - 2018/9/8/entrez KW - Aggregation KW - CuO NPs KW - Dissolution KW - Sedimentation KW - ZnO NPs SP - 31240 EP - 31249 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 31 N2 - With the accelerated application of copper oxide (CuO) and zinc oxide (ZnO) nanoparticles (NPs) in commercial products, concerns about the potential impacts on the environment have been growing. Environmental behaviors of NPs are expected to significantly influence their fate and ecological risk in the aquatic environment. In this study, the environmental behaviors of two metallic NPs (CuO and ZnO NPs), including aggregation, sedimentation, and dissolution, were systematically evaluated in five representative waters (pool water, lake water, rainwater, tap water, and wastewater) with varying properties. Remarkable aggregation, sedimentation, and dissolution were observed for both metallic NPs, among which ZnO NPs exhibited greater influence. CuO (ZnO) NPs aggregated to 400 (500) nm, 500 (900) nm, and 800 (1500) nm in lake water, wastewater, and tap water, respectively. The sedimentation rates of CuO and ZnO NPs in the five waters were ranked as tap water > wastewater > lake water > pool water > rainwater. The dissolution of CuO and ZnO NPs in waters follows a first-order reaction rate model and is affected by ionic type, ionic strength (IS), and NOM (natural organic matter) concentrations. Redundancy analysis (RDA) indicated that the aggregation and sedimentation of NPs have a strong correlation, insofar as the sedimentation rates increase with increasing aggregation rates. The aggregation and dissolution of NPs have a negative correlation, insofar as the dissolution rates reduce with increasing aggregation rates. The aggregation, sedimentation, and dissolution of NPs can be influenced by ionic types, IS, and TOC in waters, among which, TOC may the dominant factor. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/30191530/Aggregation_sedimentation_and_dissolution_of_CuO_and_ZnO_nanoparticles_in_five_waters_ L2 - https://dx.doi.org/10.1007/s11356-018-3123-7 DB - PRIME DP - Unbound Medicine ER -