Development of stable pollution free TiO2/Au nanoparticle immobilized green photo catalyst for degradation of methyl orange.

Two types of heterogeneous nanoparticle immobilized photocatalysts viz., PSP4VP-TiO2 and PSP4VP-TiO2-Au were synthesized by immobilization of TiO2 and TiO2-Au nanoparticles individually onto the insoluble cross-linked poly(styrene)-co-poly(4-vinylpyridine) as a common matrix. These two different green photocatalysts were characterized by FT-IR, SEM, HRTEM and EDS analyses and proves that the respective nanoparticles were found to immobilize onto the matrix.