Change of ZnO nanoparticles colloidal behavior in aqueous solutions of humic acids
The effect of natural organic matter on the colloidal properties of nanoparticles is of great importance. In this work we examined colloidal properties of ZnO nanoparticles with average size of 32 nm in differently concentrated solutions of humic acids using spectrophotometry and dynamic light scattering. It has been shown that small additions of humic acids (10-6 mgL,'1) do not affect the sedimentation properties, but the size of the aggregates increases by 5.6 times in comparison with the suspension without the addition of acids. It has been also found that, in a certain concentration range, with the growth of humic acids content, the deposition rate increases, and the size and charge of the aggregates decrease. For example, in the solutions with concentrations of humic acids 10-6...10'4..J0'2 mgL,'1, the size and zeta potential of particles are, respectively, 825...472...161 nm and +14.0 ...-5.5...-16.4 mV.
Keywords
sedimentation,
humic acids,
ZnO nanoparticles,
size,
zeta potentialAuthors
| Yudnikova Arina A. | Tomsk Polytechnic University | aay25@tpu.ru |
| Godymchuk Anna Yu. | Tomsk Polytechnic University | godym-chuk@tpu.ru |
Всего: 2
References
Fan Z., Lu J.G. Zinc oxide nanostructures: synthesis and properties // Journal of Nanoscience and Nanotechnology. 2005. Vol. 10. Р. 1561-1573.
Yuzhen L., Lin G., Huibin X., Lu D., Chunlei Y., Jiannong W., Weikun G., Shihe Y., Ziyu W. Low temperature synthesis and optical properties of small-diameter ZnO nanorods // Journal of Applied Physics. 2006. Vol. 99. Art. 114302.
Gruzintsev A.N., Yakimov E.E. Annealing effect on the luminescent properties and native defects of ZnO // Inorganic Materials. 2005. Vol. 41 (7). Р. 725-729.
Singh T.A., Das J., Sil P.C. Zinc oxide nanoparticles: A comprehensive review on its synthesis, anticancer and drug delivery applications as well as health risks // Advances in Colloid and Interface Science. 2020. Art. 102317.
Turan N.B., Erkan H.S., Engin G.O., Bilgili M.S. Nanoparticles in the aquatic environment: Usage, properties, transformation and toxicity - a review // Process Safety and Environmental Protection. 2019. Vol. 130. Р. 238-249.
Park J., Kim S., Yoo J., Lee J.-S., Park J.-W., Jung J. Effect of salinity on acute copper and zinc toxicity to Tigriopus japonicus: the difference between ions and nanoparticles // Marine Pollution Bulletin. 2014. Vol. 85. Р. 526-531.
Dai H., Sun T., Han T., Guo Z., Wang X. Aggregation behavior of zinc oxide nanoparticles and their biotoxicity to Daphnia magna: influence of humic acid and sodium alginate // Environmental Research. 2020. Vol. 191. Art. 110086.
Akhil K., Klan S.S. Effect of humic acid on the toxicity of bare and capped ZnO nanoparticles on bacteria, algal and crustacean system // Journal of Photochemistry and Photobiology B: Biology. 2017. Vol. 167. Р. 136-149.
Godymchuk A., Papina I., Karepina E., Kuznetsov D., Lapin I., Svetlichnyi V. Agglomeration of iron oxide nanoparticles: pH effect is stronger than amino acid acidity // Journal of Nanoparticle Research. 2019. Vol. 21 (10). Р. 208.
Касимова Л.В. Способ получения стимулятора роста растений : патент РФ 2213452, приоритет от 06.06.2001.
Hana Y., Kim D., Hwang G., Lee B., Eom I., Kim P.J., Tong M., Kim H. Aggregation and dissolution of ZnO nanoparticles synthesized bydifferent methods: Influence of ionic strength and humic acid // Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2014. Vol. 451. Р. 7-15.
Xia T., Kovochich M., Liong M., Madler L., Gilbert B., Shi H.B., Yeh J.I., Zink J.I., Nel A.E.Comparison of the mechanism of toxicity of zinc oxide and cerium oxidenano-particles based on dissolution and oxidative stress properties // ACS Nano. 2008. Р. 21212134.
Miller R.J., Lenihan H.S., Muller E.B., Tseng N., Hanna S.K., Keller A.A. Impacts of metal oxide nanoparticles on marine phytoplankton // Environmental Science and Technology. 2010. Vol. 44. Р. 7329-7334.
Lin D.H., Xing B.S. Phytotoxicity of nanoparticles: inhibition of seed germination and root growth // Environmental Pollution. 2007. Vol. 150. Р. 243-250.
Jeng H.A., Swanson J. Toxicity of metal oxide nanoparticles in mammaliancells // Journal of Environmental Science and Health. Part A. 2006. Vol. 41. Р. 2699-2711.
