SYNTHESIS OF CELLULOSE-GRAPHENE OXIDE COMPOSITE MICROBEADS FOR COPPER (II) HEAVY METAL WASTE ADSORPTION

• Main Author: Dandy Susanto, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/79633
• Institution: Institut Teknologi Bandung

Industrial waste generally contains non-degradable heavy metal ions that could become environmental pollutants and be harmful to human health. Adsorption is a method that could be used to reduce heavy metal pollutions. Graphene oxide has stunning adsorption capability, but the structure of the material become a hindrance. Cellulose microbead is a perfect macromolecule option for graphene oxide because of its high adsorption properties. Dropping method was used to synthesize cellulose microbeads from cellulose-NaOH-water solution into a water bath using various parameters. Cellulose-graphene oxide microbeads was synthesized by adding graphene oxide into cellulose-NaOH-water solution and used the same dropping method but only with the optimum parameter. Adsorption of CuCl2 solution was performed for both microbeads. Visual and SEM imaging from microbeads cellulose showed different shapes and morphologies depending on the parameters used, then the optimum parameter was obtained. Cellulose-graphene oxide microbeads composite has a rougher surface morphology. Results from the adsorption process showed that both microbeads succeeded in adsorbing copper (II) and chloride ions of CuCl2 solution.