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Silver nanoparticles deposited on polysiloxane networks as active catalysts in dye degradation
Author(s) -
WójcikBania Monika,
Stochmal Edyta,
Duraczyńska Dorota
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49170
Subject(s) - silver nanoparticle , absorbance , catalysis , materials science , degradation (telecommunications) , nanoparticle , redox , toluene , reducing agent , fourier transform infrared spectroscopy , chemical engineering , metal ions in aqueous solution , metal , inorganic chemistry , nanotechnology , chemistry , organic chemistry , metallurgy , chromatography , telecommunications , computer science , engineering
The article proposes a new method of obtaining silver nanoparticles on polysiloxane networks using the reducing properties of Si–H groups. Three types of networks with different architecture and distribution of Si–H groups were studied as reducing agents for silver ions and as matrices for the obtained silver nanoparticles. As established by FTIR spectroscopic studies, the redox reaction between Ag + ions from the silver heptafluorobutyrate solution in toluene and Si–H groups of the networks occurred, which resulted in the appearance of silver nanoparticles in the systems. The amount of metal introduced into individual polysiloxane networks is closely related to the consumption of Si–H groups in them. The type of polysiloxane networks used affects the size of Ag NPs obtained and their distribution on the carrier. Polysiloxane‐Ag systems are observed to be an effective catalyst on reduction of hazardous dye like methyl red, which is confirmed by a decrease in absorbance maximum values.