S. MUTHUPOONGODI, LIVIU MITU, T. LINDA, X. SAHAYA SHAJAN, S. BALAKUMAR FACILE RECOVERABLE, REUSABLE AND EFFICIENT HETEROGENEOUS PHOTOCATALYST PREPARATION AND CHARACTERIZATION OF V2O5 ADDED TIO2 POLYMER NCS
TiO2 and V2O5 added polymer nanocomposites (NCs) were prepared by solution cast method and characterized by UV-Vis-DRS spectroscopy, powder X-ray diffraction, FTIR and SEM analysis. These characterization studies were employed to investigate the structure, optical property, phase formation and morphology of the prepared polymer NCs. The photocatalytic activities of the NCs were studied by observing the degradation of model dyes congo red (CR) and rhodamine B (RhB) under 365 nm of UV-light irradiation. In addition the recyclability and reusability of the catalyst were also examined. The results showed that nearly 95 % congo red and rhodamine B had undergone degradation in 160 and 80 mins of reaction time respectively. The catalyst shows better recyclability and can be reused for at least 6 times. In particular V2O5 added polymer NCs shows better catalytic activity towards the degradation of organic dyes. In the photodegradation process the photo-induced holes were considered to be the dominant active species. The reported catalytic system is found to be a simple, reusable and effective model for the degradation of dye polluted effluent water.