You need JavaScript to view this

Radiation Processing of Active Biodegradable Green Nano Composite Materials for Packaging Purposes

Abstract

Clean and green reduction process of silver ions and graphene (GO) into nanosilver metal and graphene (GR) nanosheets respectively was achieved via gamma irradiation. The efficiency of gamma radiation to reduce silver ions and graphene oxide (GO) was investigated using UV-vis spectroscopy. Effects of gaseous atmosphere type, dispersion pH value, capping agent type and irradiation dose on GR nano-sheets formation were investigated. The presence of capping agent such as sodium carboxymethyl cellulose (CMC) or cellulose acetate is proven to be crucial. The obtained GR nanosheets and nanosilver metals are characterized using atomic force microscopy (AFM), transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FT-IR), X-ray diffraction (XRD) as well as thermo-gravimetric analyzer (TGA) and differential scanning calorimeter (DSC). Effectiveness, simplicity, reproducibility, and low energy consumption are the merits of using the Gamma radiation technique. Furthermore, the capping agent is eco-friendly and the dispersion is stable for months at room temperature. This approach can open up large-scale production of GR nanosheets and nanosilver metals. The prepared Nano-silver can be mixed with different natural polymer like CA to form Nano-composite films. The excellent physical properties of CA did not affect by addling Ag. The ionizing radiation has un-significant effect on the properties  More>>
Authors:
AbdEl-Rehim, Hassan A.; Hegazy, El-Sayed A.; Raafat, Ahmed [1] 
  1. National Center for Radiation Research and Technology NCRRT, Atomic Energy Authority, Cairo, Egypt P. O. Box 29, Nasr City, Cairo (Egypt)
Publication Date:
Jul 01, 2011
Product Type:
Conference
Report Number:
IAEA-RC-1207.1
Resource Relation:
Conference: 1. RCM on Radiation Curing of Composites for Enhancing the Features and Utility in Health Care and Industry, Vienna (Austria), 18-22 Jul 2011; Other Information: Refs., 3 tabs., 14 figs.; Related Information: In: Report of the 1st RCM on Radiation Curing of Composites for Enhancing the Features and Utility in Health Care and Industry. Working Material| 179 p.
Subject:
60 APPLIED LIFE SCIENCES; 36 MATERIALS SCIENCE; AMINO ACIDS; ATOMIC FORCE MICROSCOPY; BIODEGRADATION; CELLULOSE; COMPOSITE MATERIALS; DISPERSIONS; FILMS; FOURIER TRANSFORMATION; GAMMA RADIATION; GRAPHENE; INFRARED SPECTRA; MECHANICAL PROPERTIES; NANOSTRUCTURES; OLIGOSACCHARIDES; OXIDES; SILVER; SILVER IONS; SPECTROSCOPY; THERMAL GRAVIMETRIC ANALYSIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
OSTI ID:
22270123
Research Organizations:
International Atomic Energy Agency, Division of Physical and Chemical Sciences, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA14M2992091355
Availability:
Available from INIS in electronic form. Also available on-line: http://www-naweb.iaea.org/napc/iachem/working_materials/RC-1207-1-report.pdf
Submitting Site:
INIS
Size:
page(s) 62-77
Announcement Date:
Oct 23, 2014

Citation Formats

AbdEl-Rehim, Hassan A., Hegazy, El-Sayed A., and Raafat, Ahmed. Radiation Processing of Active Biodegradable Green Nano Composite Materials for Packaging Purposes. IAEA: N. p., 2011. Web.
AbdEl-Rehim, Hassan A., Hegazy, El-Sayed A., & Raafat, Ahmed. Radiation Processing of Active Biodegradable Green Nano Composite Materials for Packaging Purposes. IAEA.
AbdEl-Rehim, Hassan A., Hegazy, El-Sayed A., and Raafat, Ahmed. 2011. "Radiation Processing of Active Biodegradable Green Nano Composite Materials for Packaging Purposes." IAEA.
@misc{etde_22270123,
title = {Radiation Processing of Active Biodegradable Green Nano Composite Materials for Packaging Purposes}
author = {AbdEl-Rehim, Hassan A., Hegazy, El-Sayed A., and Raafat, Ahmed}
abstractNote = {Clean and green reduction process of silver ions and graphene (GO) into nanosilver metal and graphene (GR) nanosheets respectively was achieved via gamma irradiation. The efficiency of gamma radiation to reduce silver ions and graphene oxide (GO) was investigated using UV-vis spectroscopy. Effects of gaseous atmosphere type, dispersion pH value, capping agent type and irradiation dose on GR nano-sheets formation were investigated. The presence of capping agent such as sodium carboxymethyl cellulose (CMC) or cellulose acetate is proven to be crucial. The obtained GR nanosheets and nanosilver metals are characterized using atomic force microscopy (AFM), transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FT-IR), X-ray diffraction (XRD) as well as thermo-gravimetric analyzer (TGA) and differential scanning calorimeter (DSC). Effectiveness, simplicity, reproducibility, and low energy consumption are the merits of using the Gamma radiation technique. Furthermore, the capping agent is eco-friendly and the dispersion is stable for months at room temperature. This approach can open up large-scale production of GR nanosheets and nanosilver metals. The prepared Nano-silver can be mixed with different natural polymer like CA to form Nano-composite films. The excellent physical properties of CA did not affect by addling Ag. The ionizing radiation has un-significant effect on the properties of CA-Ag nano composites films The CA-Ag nano composites posses biological activity towards different microorganisms. On other hand graphene or graphene oxide dispersions might be of interesting for producing biological active packaging films. Go as nanofillers has used for fabrication of a biocomposite with chitosan. The significantly improved in Chitosan /Go nano composites physical properties, including mechanical property, electrical conductivity, and structural stability, was demonstrated. Properties of the CA-Ag and Chitosan /Go nano composites suggest their uses as active eco-friendly food packaging materials. (author)}
place = {IAEA}
year = {2011}
month = {Jul}
}