Graphene/SiO2 Nanocomposite From Natural Material
M Munasir(a,*); Mahdalisa Dayu (a)

(a)Physics Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya
Kampus Unesa-Ketintang, Jl. Ketintang, Surabaya, 60231

(*)munasir_physics[at]unesa.ac.id

Abstract

This work, reports on the results of research, fabrication of natural-based Graphene/SiO2 nanocomposites; graphene (GO) was prepared from coconut shells using the Hamers method and silica nanoparticles (SiO2) derived from Tetraethyl-orthosilicate precursors. Graphene/SiO2 nanocomposite fabrication using the one-pot process. The Crystal structure was analyzed using XRD, functional groups with FTIR and D-band and G-band that identified sp2 orbitals with Raman Spectroscopy. The analysis of adsorption properties of methylene blue dyes dissolved in water studied by UV-Vis spectroscopy. Graphene/SiO2 characteristics are obtained both in terms of structure and adsorption power of colours in the water, which is characterized by a trend of decreasing adsorption intensity on the UV-Vis curve.

Keywords: graphene (GO); Fe3O4/rGO; nanoparticle

Topic: Physics