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In situ preparation of inorganic nanoparticles in amino‐functionalized porous cellulose particles
Author(s) -
Omura Taro,
Fujii Yuki,
Suzuki Toyoko,
Minami Hideto
Publication year - 2021
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.50397
Subject(s) - tetraethyl orthosilicate , catalysis , materials science , porosity , cellulose , nanoparticle , composite number , solvent , chemical engineering , amination , polymer chemistry , sol gel , chemistry , organic chemistry , composite material , nanotechnology , engineering
Amino‐functionalized cellulose particles with a porous structure were prepared by a solvent‐releasing method with 1‐butyl‐3‐methylimdazolium chloride ([Bmim]Cl) followed by an amination reaction, and were incorporated with silica. The amino groups provided the base catalyst for the formation of silica on the porous structure during the in situ sol–gel reaction of tetraethyl orthosilicate. After the reaction, no free silica remained in the reaction medium. The microscopic morphologies (specific surface area, pore diameter, and pore volume) of the composite particles were affected by the silica content in the composites, which was controllable by the sol–gel reaction time. When silver nanoparticles were introduced to the pores of the cellulose particles by reduction of AgNO 3 with amino groups, the composite exhibited catalytic ability and recyclability.