Photocatalytic Degradation of Amaranth Dye over Immobilized Nano-crystals of TiO_2

摘要

The present work is focused on the heterogeneous photocatalytic degradation of Amaranth dye over immobilized nano-crystals of TiO_2. Immobilization has been an acceptable approach to overcome the drawbacks encountered with powder suspensions. Immobilization is performed using polyvinyl alcohol-formaldehyde binder. This method of immobilization does not require thermal heating at high temperature. Combination of adsorption and photodegradatoin processes is also studied. Adding high adsorption capacity activated carbon to photoactive Titanium dioxide induces strong beneficial effects in the removal of Amaranth dye.