Cellophane and filter paper as cellulosic support for silver nanoparticles and its thermal decomposition catalysis.
Silver nanoparticles (AgNPs) have attracted great attention due to its optical, electrical and thermal properties. Cellulosic supports for these nanoparticles are of particular interest because of its availability, flexibility and biocompatibility. In this work, AgNPs were synthesized using two cellulosic materials, cellophane (CP) and filter paper (FP), as matrix support. Cellulosic materials were immersed in an aqueous solution of silver nitrate containing polyvinylpyrrolidone (PVP) and then reduced with hydroxylamine. The obtained nanocomposites (CP-AgNPs and FP-AgNPs) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (DRX) and scanning electron microscopy (SEM). AgNPs of near 15nm anchored onto cellulosic surfaces were detected. The thermal properties of these materials were investigated through thermogravimetry (TG). Their kinetic of thermal decomposition was studied by the Vyasovkin method of dynamic isoconvertion, which indicated a catalytic effect of AgNPs in the cellulose thermal decomposition reaction.
Department of Chemistry, State University of Maringa, Av. Colombo 5790, 87020-900, Zona 07, Maringá, PR, Brazil.
Bruna
B
da Silva Pereira
Department of Chemistry, State University of Maringa, Av. Colombo 5790, 87020-900, Zona 07, Maringá, PR, Brazil.
Marcela Fernandes
MF
Silva
Technological Department Environmental Management, Federal Technological University of Parana, Campus Medianeira, Av. Brasil, Parque Independência, 85884-000 Medianeira, PR, Brazil.
Paulo Rodrigo Stival
PR
Bittencourt
Department of Chemistry, State University of Maringa, Av. Colombo 5790, 87020-900, Zona 07, Maringá, PR, Brazil.
Daniela Martins Fernandes
DM
de Oliveira
Department of Chemistry, State University of Maringa, Av. Colombo 5790, 87020-900, Zona 07, Maringá, PR, Brazil.
Edgardo Alfonso Gómez
EA
Pineda
Department of Chemistry, State University of Maringa, Av. Colombo 5790, 87020-900, Zona 07, Maringá, PR, Brazil. Electronic address: anitawh@uem.br.
Ana Adelina Winkler
AA
Hechenleitner
Cellophane; Cellulosic materials; Filter paper; Hydroxilamine (PubChem CID: 787); Polyvinylpirrolidone (PubChem CID: 11989721); Silver nanoparticles; Silver nitrate (PubChem CID: 24470); Sodium hydroxide (PubChem CID: 14798); Thermal decomposition catalysis; Vyasovkin