전기방사를 이용한 TiO2 나노섬유 제조 및 메틸렌블루의 광촉매 분해 = Fabrication of TiO2 Nanofibers using Electrospinning System and Photocatayltic Decomposition of Methylene Blue

다국어 초록 (Multilingual Abstract)

TiO2 nanofiber was prepared by electrospinning method. The photocatalyst of TiO2 nanofiber were characterized by conducting TGA, FE-SEM and XRD. After calcination temperature of 500℃, the average diameter of TiO2 nanotibers decreased up to 69 nm from 154 nm due to reason of polymer removal. TiO2 nanofibers were obtained with anatase phase of 46%. These photocatalysts were evaluated for the decomposition of methylene blue under UV light at a different reaction temperatures. The photocatalytic degradation rate could be apply for first order equation by Langmuir-Hinshelwood. We calculated activation energy using Arrhenius equation. When the reaction temperatures are 30, 40, and 50℃, the degradation rate were 0.224, 0.262 and 0.301 hr(-1) respectively. The activation energy was 13.187 kJ/mol.