Sintesis dan Karakterisasi Film Lapis Tipis TiO2 Sebagai Pendegradasi Pewarna Tekstil Procion Red MX-8B

Abstract

TiO2photocatalyst is one of type semiconductor that is often used in textile dyes photodegradation method which characteristics are influenced by the size of crytal. Synthesis of TiO2 photocatalysts can be done by several methods, one using the sol-gel method. By treating variations in the composition of the reactans and treatment of synthesis in sol-gel method, the size of the TiO2 crystals can be controlled to produced the desired characteristics. This study has been made of TiO2 photocatalysts in the form of thin-layer films using sol-gel method with annealing process at a temperature of 550oC. This study examines the effect of the concentration of precursor TTIP and hydrolysis ratio of the crystal structure, crystallinity, the band gap energy, and photocatalyst activity to degrade procion red mx-8b dye compound. The result obtained is known that the crystal synthesized has structure of TiO2 anatase. Value crystal size, crystallinity, the band gap energy, and percent degradation has a value that depends on the composition of TTIP concentration and hydrolysis ratio. Although the results showed morphology of TiO2 particle indivcate that large size and crystallinity value is still low, but that is interesting each of the measurement results mutually support each other.