The photocatalytic degradation of azo dyes in the presence of titanium dioxide (TiO₂) doped with selective metals has been a topic of growing interest due to its potential for efficient and eco-friendly dye removal. Azo dyes are widely used in various industries, including textiles, cosmetics, and food, but their release into the environment poses significant environmental and health concerns. Photocatalysis, particularly using TiO₂ as a catalyst, has emerged as a promising method to address this issue. This study explores the enhanced photocatalytic activity of TiO₂ through the introduction of selective metal dopants. The incorporation of specific metals into the TiO₂ lattice aims to optimize its photocatalytic properties, including bandgap engineering, charge carrier separation, and surface reactivity. The unique combination of metal dopants and TiO₂ is expected to boost the degradation efficiency and reduce the reliance on expensive and potentially harmful sensitizers. The experimental investigation involves the synthesis and characterization of TiO₂-based photocatalysts doped with various metals. The photocatalytic degradation of different azo dyes is assessed under controlled laboratory conditions, studying the influence of metal dopants on the degradation kinetics, degradation efficiency, and by-product formation. The results demonstrate the significant potential of metal-doped TiO₂ photocatalysts for efficient azo dye degradation. The findings contribute to the understanding of the fundamental principles underlying the photocatalytic process and provide valuable guidance for the design and optimization of advanced photocatalytic systems. Ultimately, this research contributes to the development of sustainable and effective technologies for the removal of azo dyes from various wastewater, promoting environmental preservation and human well-being.

Raghava Kommalapati

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