Cellophane and filter paper as cellulosic support for silver nanoparticles and its thermal decomposition catalysis

Carbohydrate Polymers
Bruna da Silva PereiraAna Adelina Winkler Hechenleitner

Abstract

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.

References

Sep 14, 2011·Methods : a Companion to Methods in Enzymology·Kevin SeekellAdam Wax
Oct 23, 2012·Biosensors & Bioelectronics·S PrakashVinod K Shahi
Feb 16, 2013·Colloids and Surfaces. B, Biointerfaces·Aswathy RavindranS Sudheer Khan
Aug 21, 2013·Environmental Toxicology and Pharmacology·Nidhija RoyVibha Rani
Jun 16, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Loriz Francisco SallumRenato Lajarim Carneiro
Dec 3, 2014·Carbohydrate Polymers·Ran LiLina Zhang

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Related Feeds

Birth Defects

Birth defects encompass structural and functional alterations that occur during embryonic or fetal development and are present since birth. The cause may be genetic, environmental or unknown and can result in physical and/or mental impairment. Here is the latest research on birth defects.