1. Heterogeneous photocatalysis of organic dyes2. Novel photocatalytic techniques of Organic dye degradation in water3. Application of doped semiconductors in the degradation of dyes4. Hybrid systems and their importance in the dye degradation5. Photocatalytic Degradation of Azo Dyes under Visible Light Irradiation6. High Photocatalytic Activity under Visible Light for dye degradation7. Rate-Limiting Steps of Dye Degradation8. Effective Materials in the Photocatalytic Treatment of Dyestuffs and Stained Wastewater9. Industrial application of photocatalytic methods such as textile pharmaceutical industries, tannery, and craft10. Phtytogenicsynthesis of nanoparticles and their application in photo catalysis11. Mycogenic synthesis of metallic nanostructures and their use in dye degradation12. Mechanistic aspect of the dye degradation using photocatalysts13. Green and sustainable methods of photocatalytic materials for efficient application in dye degradation