Zeta Potential, Size, and Semiconductor Properties of Zinc Sulfide Nanoparticles in a Stable Aqueous Colloid Solution


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A stable aqueous colloid solution of zinc sulfide (ZnS) nanoparticles was obtained by chemical condensation using ethylenediaminetetraacetic acid disodium salt. The mechanism of prolonged aggregative stability of solution at pH 7–8 with ~7-nm nanoparticles was determined as a result of the zeta potential measurements by dynamic light scattering. The blue and red shifts of the fundamental absorption edge of zinc sulfide semiconductor nanoparticles associated with the small size of nanoparticles and the defective state of their surface were found by optical spectrophotometry.

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Yu. Kuznetsova

Institute of Solid State Chemistry, Ural Branch

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Email: jukuznetsova@mail.ru
俄罗斯联邦, Yekaterinburg

A. Kazantseva

Institute of Solid State Chemistry, Ural Branch; Ural Federal University named after the first President of Russia B.N. Yeltsin

Email: jukuznetsova@mail.ru
俄罗斯联邦, Yekaterinburg; Yekaterinburg

A. Rempel

Institute of Solid State Chemistry, Ural Branch; Ural Federal University named after the first President of Russia B.N. Yeltsin

Email: jukuznetsova@mail.ru
俄罗斯联邦, Yekaterinburg; Yekaterinburg

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