Self-cleaning behaviour of alkyd coating impregnated with mixed metal oxides of Zn and Sn

Earlier, we reported the photocatalytic behaviour of mixed metal oxides of zinc and tin (MZOTO) and concluded that the composition prepared in the ratio 1:0.5 displays excellent results. Present study details about the formulation of alkyd resin based coating using MZOTO as the pigment in suitable proportion; the contents were homogeneously mixed by high energy ball milling technique. On exposing the coated specimen contaminated by artificial pollutant like crystal violet to sunlight, the pollutant was bleached within 4 h showing its excellent self-cleaning property. Thus the prepared coating provides a new vision to next generation self-cleaning coating to degrade organic pollutants.