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Open Access

Dispersion performance of nanoparticles in water

Li-sha MA1,2, Zhan-tao HAN3, Yan-yan WANG1,2( )
Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey, Shijiazhuang 050061, China
Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
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Abstract

Engineering Nanoparticles (ENPs)' superior characteristics of adsorption depends on their dispersion in the medium. In this study, multi-walled carbon nanotubes (nonmetal), iron nanoparticles and silver nanoparticles (metallic simple substance), and Nano-TiO2, Nano-Fe2O3 and Nano-ZnO (metal oxide) were selected and respectively added into pure water and aqueous solution with 1% Sodium dodecyl benzene sulfonate (SDBS) surfactant. The dispersion effects were compared by leaving the solutions standing at room temperature under ultrasound. The results show that the dispersion of iron nanoparticles is the lowestamong the six ENPs, and that of multi-walled carbon nanotubes (MWCTS) is the highest. Adding anionic surfactants (SDBS) can obviously improve the dispersion performance of ENPs. The concentration of solution decreases by only 5% in 10 daysafter adding 1% SDBS for ultrasonic dispersion.

Keywords

NanoparticlesDispersionSodium dodecyl benzene sulfonate (SDBS)

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Journal of Groundwater Science and Engineering
Volume 9 Issue 1,
March 2021
Pages 37-44
DOI: 10.19637/j.cnki.2305-7068.2021.01.004
Cite this article:
MA L-s, HAN Z-t, WANG Y-y. Dispersion performance of nanoparticles in water. Journal of Groundwater Science and Engineering, 2021, 9(1): 37-44. https://doi.org/10.19637/j.cnki.2305-7068.2021.01.004

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Received: 26 June 2020
Accepted: 16 August 2020
Published: 28 March 2021
© 2021 Journal of Groundwater Science and Engineering Editorial Office
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