Photocatalytic Degradation and Mineralization of Reactive Textile Azo Dye Using Semiconductor Metal Oxide Nano Particles
نویسندگان
چکیده
The textile industry consumes considerable amounts of water during the dying and finishing operations. Dyes extensively used are found to be toxic and considered to be resistant to biodegradation. In this work a detailed investigation of heterogeneous photocatalytic degradation of Navy blue HE2R 1 (NB), azo dye of reactive class is presented using UV/P25TiO2/ZnO2/H2O2 process in aqueous suspension under 8W low-pressure mercury vapor lamp irradiation by using Semiconductor metal oxide nano particles. Here we also report the optimization of various experimental parameters such as effect of catalyst concentration, effect of substrate concentration, effect of addition of H2O2. The obtained results show that the employment of UV/P25TiO2/ZnO2/H2O2 process and selection of optional operational parameters lead to complete decolorization and substantial mineralization of Navy blue HE2R 1 (NB) dye which is supported by showing decreases in Chemical Oxygen Demand (COD) and Total Organic Carbon (TOC) of the dye solution.
منابع مشابه
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