Abstract:
World is facing severe energy and environmental crisis. Renewable energy sources are
gaining popularity with time, because of being an infinite source of energy, cost effectiveness
etc. Water pollution, a major type of pollution, is a cause of various potential acute health
diseases and potential chronic health diseases. Among the available chemical methods,
heterogeneous photocatalytic oxidation is an effective method for the degradation of large
number of persistent organic pollutants. Semiconductor based photocatalysts are commonly
used materials for the photodegradation of organic pollutants and toxic dyes. In this
dissertation, MoO3 were synthesized via hydrothermal method. In order, to reduce the band
gap of MoO3, composites were synthesized with g-C3N4. (NH4)6Mo7O24 powder was used as
precursor for synthesis of MoO3 and melamine was used as precursor for synthesis of g-C3N4.
The prepared catalysts were characterized using XRD, SEM, EDS and UV/Vis-DRS. The
degradation studies for the prepared photocatalysts were performed on methylene blue under
visible light using photochemical reactor. The spectroscopic studies exhibited that
photocatalytic performance of 30% g-C3N4/MoO3 composite was best amongst all prepared
catalysts with an efficiency of 91.5%.
