Title of article :
The effect of pH on lateral size and surface chemistry of graphene oxide
Author/Authors :
abbasi, f. sharif university of technology - department of petroleum and chemical engineering, ايران , karimi-sabet, j. nuclear science and technology research institute - nfcrs, ايران , ghotbi, c. sharif university of technology - department of petroleum and chemical engineering, ايران , abbasi, z. sharif university of technology - department of petroleum and chemical engineering, ايران , mousavi, s.a. sharif university of technology - department of petroleum and chemical engineering, ايران , amini, n. sharif university of technology - department of petroleum and chemical engineering, ايران
Abstract :
In recent times, single-layer Graphene Oxide (GO) has been of intense interest to many researchers for a broad spectrum of applications. Size and surface charge of GO sheets are two key factors in most of these fields. These structural properties can be tuned by adjusting pH and manipulating the content of oxygen-containing groups. Furthermore, the pH value extremely affects the surface chemistry and functional groups of GO sheets, which are crucial in providing a high stable solution and chemical activity of particles. In this study, Graphene oxide is synthesized by the improved hummer method and characterized by XRD, AFM, FTIR, DLS, and zeta potential. pH value can be tuned through titration with NaOH and HC1, and the effect of pH on GO dispersion stability and optical properties is investigated.
Keywords :
Attractive force , Graphene oxide , pH , Repulsive force
Journal title :
Scientia Iranica(Transactions F: Nanotechnology)
Journal title :
Scientia Iranica(Transactions F: Nanotechnology)
