Modified Fe3O4- hydroxyapatite nanocomposites as heterogeneous catalysts in three UV, Vis and Fenton like degradation systems

- Photocatalytic degradation of dye by Ag modified HAP under visible light.
- Study of Fenton like degradation of dye by transition metal ions modified HAP.
- Comparison of catalytic systems according to Langmuir-Hinshelwood kinetic expression.