Ultrasonic Functionalization Of Graphene Oxide By Sulphanilic Acid And Used For The Selective Adsorption Of Methylene Blue Among The Cationic Dyes

Abstract

Graphite oxide (GO) is oxygen containing derivative of graphite, in which it has various type of functional groups which are excellent chemical reactivity. Preparation of graphene oxide is done by Hummer’s method, due to its highly chemical of reactivity of graphene oxide we can functionalized with different type of material. In this Research Work we report the use of sulphanilic acid as a surface modifying agent, sulphanilic acid incorporated on the graphene oxide surface. The –SO₃H functional groups of Sulphanilic acid were expected to provide surface compatibility form modified GO sheet. The product (S-Doped GO) which is confirmed by testing physiochemical analysis, surface analysis and elemental analysis bu various analytical techniques. S-doped GO selectively adsorbed methylene blue as a representative of cationic dye. This study shows the utility of this material for the separation and removal of methylene blue like dye which is environmentally very important.