Abstract
This study delves into the exploration of an alternative bleaching method as a substitute for hydrogen peroxide, addressing concerns related to its excessive chemical usage, high waste load, and elevated energy and water consumption. Photocatalytic bleaching was implemented on 100% cotton fabrics. Initially, hydrogen peroxide served as a catalyst, and the photocatalytic effect was meticulously examined. Subsequently, nano-sized TiO2 was introduced into the photocatalytic recipe, and operational conditions were fine-tuned to determine the optimal bleaching process for cotton fabrics. All photocatalytic experiments were systematically compared with conventional hydrojen peroxide bleaching method. A comprehensive analysis, encompassing color spectrum values, SEM, SEM-EDX, XRD, and FTIR-ATR tests, was conducted. The results revealed a notable 13.36% enhancement in whiteness performance during bleaching when subjected to photocatalytic treatment with nano TiO2 and H2O2 in tandem. This study posits itself as an environmentally conscious alternative to the long-standing conventional bleaching processes prevalent in the textile industry.
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