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Preparation of Ag/C fiber with nanostructure through in situ thermally induced redox reaction between PVA and AgNO 3 and its catalysis for 4‐nitrophenol reduction
Author(s) -
Wang Meng,
Yuan Bin,
Bai Shibing
Publication year - 2020
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4860
Subject(s) - redox , materials science , catalysis , carbonization , composite number , in situ , reducing agent , chemical engineering , spinning , fiber , polymer chemistry , composite material , scanning electron microscope , organic chemistry , chemistry , metallurgy , engineering
A novel synthesized Ag/C fibrous catalyst based on in situ thermally induced redox reaction of PVA/AgNO 3 composite fibers was proposed. Utilizing the plasticization and complexation of AgNO 3 solution, the melt spinning of PVA/AgNO 3 composites was accomplished. Through the in situ thermally induced redox reaction on PVA/AgNO 3 composite fibers combined with carbonization of PVA and reduction of Ag+, the synthesized Ag/C fibrous catalyst was prepared with nanosilver particles with average diameter of 130 nm immobilized on the loose microstructural carbon layers. The synthesized Ag/C fibrous catalyst exhibited excellent catalytic activity and reused for at least five cycles for the reduction of 4‐nitrophenol, which may hold great promise in effective and eco‐friendly waste water treatment.