MICROCRYSTALLINE CELLULOSE- GRAPHENE OXIDE COMPOSITE FOR HEAVY METAL ION ADSORPTION APPLICATIONS

• Main Author: Ivan Farrahan, Abdullah
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/55998
• Institution: Institut Teknologi Bandung

Adsorption is one method of handling liquid waste. Compared with other methods, this method has advantages such as low production and operation cost, abundant raw materials, good efficiency, as well as a simple, flexible, and reversible process. This adsorption method requires an adsorbent in the form of beads to absorb the content of heavy metal ions in the water. The adsorbent needs to be produced from materials that have good adsorption characteristics while meeting environmentally friendly standards, namely being able to be biologically degraded. This study evolves primary and secondary methods, which are experiment and literature study, respectively. In this study, beads were prepared by dissolving microcrystalline cellulose in NaOH. After the successful beading experiment, the beads were reproduced with the addition of graphene oxide (GO) at a concentration of 0.1 %; 0.2%; and 0.3% by weight. The analysis was carried out using SEM, EDS, and FTIR methods, each of which aims to determine the morphology, amount of metal ion adsorption, and GO content in the beads produced. As a result, the adsorbent produced has a rough shape and morphology that varies according to GO content and has an adsorption amount of 44% for the copper metal ion target. Through a literature review, the comparison of various GO-based composite adsorbent products, adsorption mechanisms, and desorption abilities was carried out.