It is now extensively established that the ideal way to achieve the development in heterogeneous
catalysis is to utilize semiconducting titanium dioxide (TiO2) based particles with high surface area as well as
mesoporous structure. This can efficiently accommodate substrates on its surface to interact with each other. Most
of the reduction-oxidation type organic transformations, degradation of hazardous organic moieties are feasible at
moderate reaction conditions with the help of TiO2 nanoparticles due to their ability to form composites with enhanced
performance, better metal support interactions, chemical stability, selectivity and presence of reactive
acid-base sites on its surface. This review article provides a balanced and comprehensive analysis of some innovative
and ambitious strategies for modification of TiO2 host material for heterogeneous catalysis: a) making its
composites with other materials; and b) doping by metal or non-metal.
Keywords: Titanium dioxide, heterogeneous catalysis, mixed oxide composites, metal support, organic transformation.
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