Abstract
Abstract Polyester fabric were prepared with sensitized madder/TiO2 nano particles along with hydrolysis of polyester fabric in a one single-step processing by using sonochemical technique producing self-cleaning and hydrophilic properties under visible light. Moreover, central composite design (CCD) based on response surface methodology (RSM) has been used to design the experiments with three variables on the self- cleaning and water drop adsorption time of treated fabrics. The statistical analysis also recommended the optimum conditions for the polyester fabric treatment through the experimental results. Further, the tensile properties, bending length and dimensional stability of treated fabric were investigated in the optimum processing conditions. Also, the naonparicles were characterized by field emission scanning electron microscopy (FESEM), EDX and XRD spectroscopy. Fabrics treated with madder/TiO2 nanoparticles showed superior self-cleaning properties toward degradation of Methylene Blue under visible light in comparison to bare TiO2-treated polyester fabric. Madder can be described as a safe sensitizer for nano TiO2 in photo degradation of organic contaminates as a replacement for most costly and hazardous heavy metals in order to produce self-cleaning textile in practical application such as automotive, upholstery and garment industry.
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