Institutional Repository of Chinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
Impact of water chemistry on surface charge and aggregation of polystyrene microspheres suspensions | |
Lu, Songhua1,2; Zhu, Kairuo2; Song, Wencheng3,4,5; Song, Gang6; Chen, Diyun6; Hayat, Tasawar7; Alharbi, Njud S.8; Chen, Changlun2,7,8; Sun, Yubing1 | |
2018-07-15 | |
发表期刊 | SCIENCE OF THE TOTAL ENVIRONMENT |
ISSN | 0048-9697 |
摘要 | The discharge of microplastics into aquatic environment poses the potential threat to the hydrocoles and human health. The fate and transport of microplastics in aqueous solutions are significantly influenced by water chemistry. In this study, the effect of water chemistry (i.e., pH, foreign salts and humic acid) on the surface charge and aggregation of polystyrene microsphere in aqueous solutions was conducted by batch, zeta potentials, hydrodynamic diameters, FT-IR and XPS analysis. Compared to Na+ and K+ the lower negative zeta potentials and larger hydrodynamic diameters of polystyrene microspheres after introduction of Mg2+ were observed within a wide range of pH (2.0-11.0) and ionic strength (IS, 0.01-500 mmol/L). No effect of Cl- HCO3- and SO42- on the zeta potentials and hydrodynamic diameters of polystyrene microspheres was observed at low IS concentrations (<5 mmol/L), whereas the zeta potentials and hydrodynamic diameters of polystyrene microspheres after addition of SO42- were higher than that of Cl- and HCO3 at high IS concentrations (>10 mmol/L). The zeta potentials of polystyrene microspheres after HA addition were decreased at pH 2.0-11.0, whereas the lower hydrodynamic diameters were observed at pH < 4.0. According to FT-IR and XPS analysis, the change in surface properties of polystyrene microspheres after addition of hydrated Mg2+ and HA was attributed to surface electrostatic and/or steric repulsions. These investigations are crucial for understanding the effect of water chemistry on colloidal stability of microplastics in aquatic environment. (C) 2018 Elsevier B.V. All rights reserved. |
关键词 | Polystyrene microsphere Zeta potentials Hydrodynamic diameters Water chemistry |
DOI | 10.1016/j.scitotenv.2018.02.296 |
关键词[WOS] | LAYERED DOUBLE HYDROXIDES ; NATURAL ORGANIC-MATTER ; ABSORPTION FINE-STRUCTURE ; REDUCED GRAPHENE OXIDE ; ZERO-VALENT IRON ; CARBONACEOUS NANOFIBERS ; MODELING TECHNIQUES ; TIO2 NANOPARTICLES ; MARINE-ENVIRONMENT ; POROUS-MEDIA |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Fundamental Research Funds for the Central Universities[JB2015001] ; Natural Science Foundation of China[91326202] ; Natural Science Foundation of China[21477133] ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources[GZDX2017K002] ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Jiangsu Provincial Key laboratory of Radiation Medicine and Protection ; Jiangsu Provincial Key laboratory of Radiation Medicine and Protection ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources[GZDX2017K002] ; Natural Science Foundation of China[21477133] ; Natural Science Foundation of China[91326202] ; Fundamental Research Funds for the Central Universities[JB2015001] |
WOS研究方向 | Environmental Sciences & Ecology |
WOS类目 | Environmental Sciences |
WOS记录号 | WOS:000432467700094 |
出版者 | ELSEVIER SCIENCE BV |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/37043 |
专题 | 中科院等离子体物理研究所 |
通讯作者 | Sun, Yubing |
作者单位 | 1.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Key Lab Photovolta & Energy Conversat, POB 1126, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Anhui Prov Key Lab Med Phys Technol, Hefei 230031, Anhui, Peoples R China 4.Chinese Acad Sci, Ctr Med Phys & Technol, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China 5.Chinese Acad Sci, Hefei Canc Hosp, Hefei 230031, Anhui, Peoples R China 6.Guangdong Prov Key Lab Radionuclides Pollut Contr, Guangzhou 510006, Guangdong, Peoples R China 7.King Abdulaziz Univ, Dept Math, NAAM Res Grp, Fac Sci, Jeddah 21589, Saudi Arabia 8.King Abdulaziz Univ, Dept Biol Sci, Fac Sci, Jeddah, Saudi Arabia |
第一作者单位 | 中科院等离子体物理研究所 |
推荐引用方式 GB/T 7714 | Lu, Songhua,Zhu, Kairuo,Song, Wencheng,et al. Impact of water chemistry on surface charge and aggregation of polystyrene microspheres suspensions[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,630(无):951-959. |
APA | Lu, Songhua.,Zhu, Kairuo.,Song, Wencheng.,Song, Gang.,Chen, Diyun.,...&Sun, Yubing.(2018).Impact of water chemistry on surface charge and aggregation of polystyrene microspheres suspensions.SCIENCE OF THE TOTAL ENVIRONMENT,630(无),951-959. |
MLA | Lu, Songhua,et al."Impact of water chemistry on surface charge and aggregation of polystyrene microspheres suspensions".SCIENCE OF THE TOTAL ENVIRONMENT 630.无(2018):951-959. |
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