Tecnologia da Moda e Engenharia Têxtil

Degradation of Textile Dye by UV Light Using Nano Zno/Bamboo Charcoal Photocatalysts

Ming-Shien Yen, Mu-Cheng Kuo and Chien-Wen Chen

Degradation of Textile Dye by UV Light Using Nano Zno/Bamboo Charcoal Photocatalysts

The purpose of this study is to fabricate a composite material made of nano zinc oxide and bamboo charcoal through calcination and to investigate the decolorization effect of this composite material on simulated textile wastewater containing the acidic dye C.I. Acid Red 266. The parameters contributing to the photocatalytic decolorization of Acid Red 266 are the concentration of the composite solution, the proportion of nano zinc oxide and bamboo charcoal in the composite, the change in the pH of the dye solution, and the reaction time under UV irradiation. The decolorization of C.I. Acid Red 266 by the composite materials is measured with an ultraviolet spectrometer. The experimental result shows that decolorization is optimal when the pH of the dye solution is 4 and the proportion of nano zinc oxide and bamboo charcoal in the composite material is 1:9.