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    Home > Chemicals Industry > Chemical Technology > Studies have found that silver colloidal nanoparticles coated with surfactant molecules have stronger stability

    Studies have found that silver colloidal nanoparticles coated with surfactant molecules have stronger stability

    • Last Update: 2022-04-05
    • Source: Internet
    • Author: User
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    Recently, researchers from the Nanomaterials and Device Technology Research Department of the Institute of Solid State Physics, Hefei Institute of Material Science, Chinese Academy of Sciences have made new progress in exploring the evolution of the stability of Ag colloidal nanoparticles prepared by liquid phase laser ablation (LAL)


    Due to the small size effect and surface effect, nanoparticles exhibit a thermodynamic metastable property in colloidal solution


    Researchers used LAL technology to prepare uncoated Ag colloidal nanoparticles with ultrafine particle size distribution; through shaking treatment, the structural stability of the active Ag colloidal nanoparticles was explored


    In addition, considering that the surface functionalization of nanoparticles has more extensive applications in life, the researchers simultaneously prepared two kinds of surfactant molecules CTAC and SDBS coated Ag colloidal nanoparticles, and further studied their stability evolution


    The related research results are titled Stability evolution of ultrafine Ag nanoparticles prepared by laser ablation in liquids and published in Journal of Colloid and Interface Science


    Changes of uncoated Ag colloidal nanoparticles under shaking treatment: (A) actual photos; (B) ultraviolet and visible light absorption; (C) changes in SPR characteristic peak position with time; (D) SPR characteristic peak-to-peak intensity and zeta potential Change over time

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