화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터)
권호 16권 2호, p.2177
발표분야 촉매 및 반응공학
제목 Photocatalytic Degradation of organic dyes over alkali doped TiO2-ZrO2 with tunable band gap energy
초록 The ultraviolet and visible light irradiation photocatalysis is one of the emerging and promising techniques for the degradation of organic dyes. The degradation of organic dyes like Methylene Blue (MB) was interesting to investigate the adsorbed states and adsorption phenomena of MB because such properties could be affected by the structural and environmental change due to adsorption. Doped TiO2 has been of great interest because of the variance in the bandgap according to the dopant. The Dopants include alkali metal, alkaline earth metals and other semiconductors. Herein, we report the alkali metal doped TiO2-ZrO2 (1:1) mixed oxide with High surface area and tunable bandgap energy based on the dopant, specifically K and Na are reported. The surface area observed for K doped TiO2-ZrO2 is 256m2/g and Na doped sample showed 196m2/g. We studied the photocatalytic degradation of Methylene Blue (MB) over K/Na doped TiO2-ZrO2 in comparison with TiO2-ZrO2 (TZ) and commercial TiO2 (Degussa P25) and the kinetics of the degradation were studied based on the degradation over KTZ.
저자 Abhishek Burri, 옥대용, 정은영, 박상언
소속 인하대
키워드 Photocatalytic Degradation; Metal oxide
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