Self-Assembly of Ag2S Colloidal Nanoparticles Stabilized by MPS in Water Solution | Zendy

S. V. Rempel | Zendy; Yulia V. Kuznetsova | Zendy; А. А. Rempel | Zendy

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Self-Assembly of Ag2S Colloidal Nanoparticles Stabilized by MPS in Water Solution

Author(s) -

S. V. Rempel,

Yulia V. Kuznetsova,

А. А. Rempel

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c01994

Subject(s) - high resolution transmission electron microscopy , transmission electron microscopy , nanoparticle , scanning electron microscope , colloid , spectroscopy , materials science , self assembly , nanotechnology , chemical engineering , stoichiometry , molar ratio , analytical chemistry (journal) , chemistry , organic chemistry , catalysis , physics , quantum mechanics , engineering , composite material

Self-assembly of colloidal Ag 2 S nanoparticles (NPs) was studied in the presence of (3-mercaptopropyl)trimethoxysilane (MPS). Solutions with different molar ratios of Ag 2 S/MPS were prepared. The appearance of nano- and microtubes was detected. Self-organized NPs were studied with optical microscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and high-resolution transmission electron microscopy (HRTEM). Silicon nuclear magnetic resonance spectroscopy ( 29 Si NMR) was used to study polycondensation of MPS molecules. Geometrical parameters of the nano- and microtubes depended on the molar ratio of Ag 2 S/MPS. The scheme and mechanism of self-assembly of Ag 2 S NPs in nanotubes in the presence of MPS were proposed. The effect of MPS on the preservation of the initial stoichiometry of Ag 2 S NPs was discussed.

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