title: The effect of microwave-assisted for photo-catalytic degradation of rhodamine B in aqueous nano TiO2 particles dispersions.
abstract: The photo-catalytic decomposition of rhodamine B was examined in aqueous nano TiO2 particles dispersions to assess effects of the microwave radiation assisted photo-catalytic process driven by UV radiation. The results of photo-catalytic degradation of rhodamine B showed that the decomposition rate increased with the microwave intensity, UV intensity, TiO2 particle dosages and the circulating fluid velocity. Addition of oxygen gas in the photo-catalytic degradation of rhodamine B increased the reaction rate. The effect of addition of H2O2 was not significant when photo-catalysis was used without additional microwave radiation or when microwave was irradiated without the use of photo-catalysts. When H2O2 was added under simultaneous use of photo-catalysis and microwave irradiation, however, considerably higher degradation reaction rates were observed. This study demonstrates that the microwave irradiation can play a very important role in photo-catalytic degradation.
authors: Department of Environmental Engineering, Sunchon National University, Jeonnam 540-742, Korea.
authors: Hyun-Chung
authors: HC
authors: Shin
authors: Sung Hoon
authors: SH
authors: Park
authors: Ho-Geun
authors: HG
authors: Ahn
authors: Minchul
authors: M
authors: Chung
authors: Byung Whan
authors: BW
authors: Kim
authors: Sun-Jae
authors: SJ
authors: Kim
authors: Seong-Gyu
authors: SG
authors: Seo
authors: Sang-Chul
authors: SC
authors: Jung