• Transport of PVP-coated Silver Nanoparticles in Saturated Porous Media
  • Bae, Sujin;Jang, Min-Hee;Lee, Woo Chun;Park, Jae-Woo;Hwang, Yu Sik;
  • Future Environmental Research Center, Korea Institute of Toxicology;Future Environmental Research Center, Korea Institute of Toxicology;Future Environmental Research Center, Korea Institute of Toxicology;Department of Civil & Environmental Engineering, Hanyang University;Future Environmental Research Center, Korea Institute of Toxicology;
  • 포화된 다공성매체에서 PVP-코팅된 은나노입자의 이동성 연구
  • 배수진;장민희;이우춘;박재우;황유식;
  • 안전성평가연구소, 미래환경연구센터;안전성평가연구소, 미래환경연구센터;안전성평가연구소, 미래환경연구센터;한양대학교 건설환경공학과;안전성평가연구소, 미래환경연구센터;
Abstract
The transport of silver nanoparticles (AgNPs) was investigated through a column packed with sand. A series of column experiments were carried out to evaluate the effect of ionic strength (IS), pH, electrolyte type and clay mineral on mobility of polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs). The deposition of PVP-AgNPs was increased with increasing solution ionic strength and decreasing pH. Furthermore, the depositon of PVP-AgNPs was affected by the electrolyte type (NaCl vs. NaNO3) and was shown to be greater at NaNO3 solution. Also, the transport of PVP-AgNPs was greatly increased after the pre-deposition of clay particles on sand. Our results suggest that various environmental factors can influence the mobility of PVP-AgNPs in soil-groundwater systems and should be carefully considered in assessing their environmental risks.

Keywords: Silver nanoparticles;Transport;Ionic strength;pH;Clay;

References
  • 1. Badawy, A.E., Luxton, T., Silva, R., Scheckel, K., Suidan, M., and Tolaymat, T., 2010, Impact of environmental conditions (pH, ionic strength, and electrolyte type) on the surface charge and aggregation of silver nanoparticles suspensions, Environ. Sci. Technol., 44, 1260-1266.
  •  
  • 2. Bae, S., Hwang, Y.S., Lee, Y., and Lee, S., 2013, Effects of water chemistry on aggregation and soil adsorption of silver nanoparticles, Environ. Health. Toxicol., 28, 1-7.
  •  
  • 3. Benn, T.M. and Westerhoff, P., 2008, Nanoparticle silver released into water from commercially available sock fabrics, Environ. Sci. Technol., 42, 4133-4139.
  •  
  • 4. Braun, A., Klumpp, E., Azzam, R., and Neukum, C., 2015, Transport and deposition of stabilized engineered silver nanoparticles in water saturated loamy sand and silty loam, Sci. Total. Environ., 535, 102-112.
  •  
  • 5. Chen, K.L. and Elimelech, M., 2007, Influence of humic acid on the aggregation kinetics of fullerene (C60) nanoparticles in monovalent and divalent electrolyte solutions, J. Colloid. Interf. Sci., 307, 126-134.
  •  
  • 6. Cornelis, G., Pang, L., Doolette, C., Kirby, K.J., and McLaughlin, M.J., 2013, Transport of silver nanoparticles in saturated columns of natural soils, Sci. Total. Environ., 463-464, 120-130.
  •  
  • 7. Domingos, R.F., Tufenkji, N., and Wilkinson, K.J., 2009, Aggregation of titanium dioxide nanoparticles: Role of a fulvic acid, Environ. Sci. Technol., 43, 1282-1286.
  •  
  • 8. Gondikas, A.P., Morris, A., Reinsch, B.C., and Marinakos, S.M., 2012, Cysteine-induced modifications of Zero-valent silver nanomaterials: Implications for particle surface chemistry, aggregation, dissolution, and silver speciation, Environ. Sci. Technol., 46, 7037-7045.
  •  
  • 9. Gottschalk, F. and Nowack, B., 2011, The release of engineered nanomaterials to the environment, J. Environ. Monitor., 13, 1145-1155.
  •  
  • 10. Huynh, K.A. and Chen, K.L., 2011, Aggregation kinetics of citrate and polyvinylpyrrolidone coated silver nanoparticles in monovalent and divalent electrolyte solutions, Environ. Sci. Technol., 45, 5564-5571.
  •  
  • 11. Jassby, D., Budarz, J.F., and Wiesner, M., 2012, Impact of aggregate size and structure on the photocatalytic properties of TiO2 and ZnO nanoparticles, Environ. Sci. Technol., 46, 6934-6941.
  •  
  • 12. Kim, J. and Lawler, D.F., 2005, Characteristics of zeta potential distribution in silica particles, B. Kor. Chem. Soc., 26, 1083-1089.
  •  
  • 13. Korea Environment Institute, 2011, Study on the Regulatory Scheme for the Safety of Manufactured Nanomaterials.
  •  
  • 14. Liu, J., 2014, Heteroaggregation of Silver Nanoparticles with Clay Minerals in Aqueous System, The Ohio State University Graduate School Master's degree Collection of dissertations.
  •  
  • 15. Panyala, N., Pena-Mendze, E., and Havel, J., 2008, Silver or silver nanoparticles: A hazardous threat to the environment and human health?, J. Appl. Biomed., 6, 117-129.
  •  
  • 16. Pol, V.G., Srivastava, D., Palchik, O., Palchik, V., Slifkin, M., Weiss, A., and Gedanken, A., 2002, Sonochemical deposition of silver nanoparticles on silica spheres, Langmuir, 18, 3352-3357.
  •  
  • 17. Tian, Y., Gao, B., Silvera-Batista, C., and Ziegler, K. J., 2010, Transport of engineered nanoparticles in saturated porous media, J. Nanopart Res., 12(7), 2371-2380.
  •  
  • 18. Tombácz, E., Csanaky, C., and Illes, E., 2001, Polydisperse fractal aggregate formation in clay mineral and iron oxide suspensions, pH and ionic strength dependence, Colloid. Polym. Sci., 279, 484-492.
  •  
  • 19. Tombácz, E. and Szekeres, M., 2004, Colloidal behabior of aqueous montmorillonite suspensions: the specific role of pH in the presence of indifferent electrolytes, Appl. Clay Sci., 27, 75-94.
  •  
  • 20. Tsegay Mengestab, Degree Project at the Department of Earth Sciences, Department of Earth Sciences, Uppsala University, 2015, Report on Fate and Transport of Nano-TiO2 in Saturated Porous Media: Effect of pH, Ionic Strength and Flow Rate Layer (in Sweden).
  •  
  • 21. Wisner, M.R., Lowry, G.V., Alvarez, P., Dionysiou, D., and Biswas, P., 2006, Assessing the risks of manufactured nanomaterials, Environ. Sci. Technol., 40, 4336-1315.
  •  
  • 22. Zhou, D., Abdel-Fattah, A.I., and Keller, A.A., 2012, Clay particles destabilize engineered nanoparticles in aqueous environments, Environ. Sci. Technol., 46, 7520-7526.
  •  

This Article

  • 2016; 21(1): 104-110

    Published on Feb 28, 2016

  • 10.7857/JSGE.2016.21.1.104
  • Received on Dec 7, 2015
  • Revised on Dec 14, 2015
  • Accepted on Dec 22, 2015