PRELIMINARY STUDY PREPARATION OF FE/FE2O3/CU CATALYST FROM GRINDING CHIPS FOR SYNTHETIC DYES DEGRADATION

• Main Author: Affan Farizi, Ahmad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/55488
• Institution: Institut Teknologi Bandung

The Fenton system is one of the wastewater treatment methods that has a high degradation effectivity to degrade synthetic dyes that included into recalcitrant compounds. Fenton catalyst made from the grinding process of St37 material have a spherical shape with a core-shell structure, where the inside contains Fe and the outer surface is Fe oxide. However, the main drawback of the catalyst was the occurrence of leaching during the reaction process. This makes the catalyst can’t be use for the next degradation process. One of the solutions to overcome that problem is by forming a bimetallic catalyst system. Combining Fe-based catalyst which have core-shell structure with another metal element, namely Cu. Cu not only act as a protective layer that can minimize catalyst leaching but also acts as a catalyst and synergizes with Fe during the degradation process. Based on the analysis, it is known that the estimated grinding spark temperature is in the range of 1195-1435°C, which is in the range of St37 melting temperature. In addition, based on SEM-EDS and XRD analysis, it was identified the presence of Cu/Cu2O deposits formed and attached to the surface at each variation of solution concentration. Cu content increases as the CuSO4 concentration increases along with the decrease in the Fe content in the particles. Grinding chips sample that has been immersed into 100 mM CuSO4 was the sample with the most optimum degradation ability.