Semiconductor wastewater treatment performance using TiO2 Co Fe and Co Fe nanoparticles

• Main Author: Tay, Si Yuan
• Other Authors: Darren Sun Delai
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2023
• Subjects: Engineering::Environmental engineering::Water treatment
• Online Access: https://hdl.handle.net/10356/172591
• Institution: Nanyang Technological University

Four samples of titanate cobalt ferrite (TiO2 Co Fe) and two samples of cobalt ferrite (Co Fe) nanoparticles were synthesized with modifications to the synthesis method and reagents used. The nanoparticles were characterised using field emission scanning electron microscopy (FE-SEM), energy dispersive x-ray (EDX), x-ray diffraction (XRD), brunauer-emmett-teller (BET), and thermogravimetric analysis (TGA). The nanoparticles are subsequently tested for its treatment efficiency of semiconductor wastewater in terms of total suspended solids (TSS), chemical oxygen demand (COD), and anion (F-, SO42-, Cl-) reduction. The nanoparticles can treat TSS effectively with a removal efficiency of up to 94%. However, it has limited effectiveness in treating COD and anions without modification of the wastewater properties. Finally, the semiconductor wastewater and nanoparticles were studied on its zeta potential. The semiconductor wastewater and nanoparticles have a slight positive zeta potential of 4.49mV and average zeta potential of -30.6kV respectively.