Optical and structural properties of polyvinylidene fluoride (PVDF) / reduced graphene oxide (RGO) nanocomposites
Ismail, Ahmed; Fouad, S.S.; M.I.Mohammed;
Abstract
Nanocomposites consisting of polyvinylidene fluoride [PVDF] and reduced graphene oxide [RGO] were
fabricated by solution casting method. TEM image of the RGO exhibits paper-like structure with single or
very thin layers. FTIR and XRD revealed that the structure of PVDF is strongly affected upon the addition
of RGO and the b-phase fractionwas found to increase on the expense of a-phase. DSC data indicates that
increasing the RGO content decreases the nanocomposites crystallinity. Optical properties were investigated
in the wavelength range (200e800 nm). The effect of RGO content on the optical band gap was
studied. Doppler broadening parameters (S and W) of 511 keV annihilation radiations were measured. A
reasonable correlation was found between S-parameter, the crystallinity and the optical band gap.
Doppler broadening parameters provide an explanation of the positronium formation as well as the type
and concentration of defects in the investigated composites.
fabricated by solution casting method. TEM image of the RGO exhibits paper-like structure with single or
very thin layers. FTIR and XRD revealed that the structure of PVDF is strongly affected upon the addition
of RGO and the b-phase fractionwas found to increase on the expense of a-phase. DSC data indicates that
increasing the RGO content decreases the nanocomposites crystallinity. Optical properties were investigated
in the wavelength range (200e800 nm). The effect of RGO content on the optical band gap was
studied. Doppler broadening parameters (S and W) of 511 keV annihilation radiations were measured. A
reasonable correlation was found between S-parameter, the crystallinity and the optical band gap.
Doppler broadening parameters provide an explanation of the positronium formation as well as the type
and concentration of defects in the investigated composites.
Other data
| Title | Optical and structural properties of polyvinylidene fluoride (PVDF) / reduced graphene oxide (RGO) nanocomposites | Authors | Ismail, Ahmed ; Fouad, S.S.; M.I.Mohammed | Keywords | Polyvinylidene fluoride;Reduced graphene oxide;Nanocomposites XRD;Optical properties;Doppler broadening | Issue Date | 2018 | Publisher | Elsevier | Journal | Journal of Molecular Structure | Volume | 1170 | Start page | 51 | End page | 59 | DOI | 10.1016/j.molstruc.2018.05.083 |
Attached Files
| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| pvdf rGO.pdf | 2.37 MB | Unknown | Request a copy |
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.