Photocatalytic Discoloration of Bromophenol Blue Using Rare Earth-Doped MnCeOx–TiO2 Catalysts Under Visible Light Irradiation: Optimization Via Response Surface Methodology

Key Points

• Photocatalytic discoloration occurs under visible light irradiation, effectively removing bromophenol blue.
• Optimization techniques led to a significant decrease in color intensity of bromophenol blue, achieving over 90% discoloration.
• Assessment via response surface methodology was employed to analyze the effects of various parameters on the reaction.
• These findings highlight the potential of rare earth-doped MnCeOx–TiO2 catalysts for water purification applications.