Development of visible light-responsive mono and co-doped TiO2 for photocatalytic degradation of methyl orange dye

• Main Authors: Malik, Z., Ibrahim, S. A., Ainuddin, A.R., Hussin, R., Kamdi, Z.
• Format: Conference or Workshop Item
• Language: English
• Published: 2024
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.uthm.edu.my/11216/1/P16715_c834e3bd4b8424c618e886a1247d6c87%2010.pdf; http://eprints.uthm.edu.my/11216/; https://doi.org/10.1063/5.0183197

Titanium dioxide (TiO2) has been acknowledged as a promising photocatalyst in environmental remediation including wastewater treatment. In this study, TiO2 nanoparticles either by single or co-doped of iron (Fe) and nitrogen (N) via sol-gel method and calcined at 500 °C for 3 hours. This experiment investigated the performance of mono/co-dopant of TiO2 photocatalyst against methyl orange in aqueous solution under UV light irradiation. The experimental results showed the rate of degradation favored in co-doped TiO2 followed by mono doped TiO2 and pristine TiO2. The photocatalytic reaction followed pseudo first-order kinetics which were rationalized in terms of the Langmuir– Hinshelwood model and provided nearly complete degradation