Synthesis and Characterization of TiO2/ZnO Photocatalyst Composite Material
Siti Oryza Sativa, Muhammad Ali Zulfikar, Aep Patah, Wibawa Hendra Saputera

Institut Teknologi Bandung

Abstract

The Textile and Textile Product (TPT) industry is the manufacturing sector that recorded the highest growth in the quarter of 2019. As an industry that produces textile products, dyes are used during the dyeing process. Synthetic dyes are more often used in the coloring process because they are cheap and the colors produced are brighter than natural dyes. Processing of dye waste that is not carried out properly causes pollution of the soil and water environment, so it is necessary to carry out further effective and efficient processing. This research proposes photocatalytic processing of dye waste. Photocatalytic reactions require photocatalyst materials. The photocatalytic method has advantages because it is economical, low toxic, does not form sludge, is environmentally friendly, low energy consumption and can be reused. TiO2 material modified with ZnO will be synthesized and characterized for processing dye waste. It is hoped that this research will contribute to the field of material chemistry and the environment. TiO2 has a band gap energy of 3.2 eV so that this material still works in the UV light range. It is known that sunlight has about 5% UV light and 45% visible light, so it is necessary to modify TiO2 so it can work under visible light.

Keywords: photocatalysis, photocatalyst material, TiO2/ZnO

Topic: CHEMISTRY AND MATERIAL SCIENCES