Takeuchi, Masato Deguchi, Junichi Hidaka, Manabu Sakai, Shiro Woo, Kyoungja Choi, Pyuck-Pa Park, Jong-Ku Anpo, Masakazu 2024-01-20T21:03:29Z 2024-01-20T21:03:29Z 2021-09-03 2009-07-15 0926-3373 https://pubs.kist.re.kr/handle/201004/132313 The photocatalytic oxidation of gaseous acetaldehyde With O-2 on commercial TiO2 nano-particles could be successfully enhanced by a simple mechanical blending with a high-silica mordenite (MOR) zeolite, the surface of which showed high hydrophobic properties. When the TiO2 nano-particles of ca. 5-20 wt% were mixed with the MOR zeolite powders in an agate mortar for only 5 min, the blended TiO2/MOR samples showed higher photocatalytic reactivity as compared to the pure TiO2 nano-particles. Since the high-silica zeolite powders are highly transparent in UV light regions, the incident UV light is effectively irradiated onto the whole part of the TiO2 nano-particles without any loss of light intensity. Furthermore, the siliceous MOR zeolite powders effectively adsorb the gaseous acetaldehyde molecules and supply them onto the surfaces of the blended TiO2 nano-particles, resulting in an enhancement of the photocatalytic reactivity. (C) 2008 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV TITANIUM-OXIDE PHOTOCATALYSTS WATER DECOMPOSITION ADSORPTION CATALYSIS Enhancement of the photocatalytic reactivity of TiO2 nano-particles by a simple mechanical blending with hydrophobic mordenite (MOR) zeolite Article 10.1016/j.apcatb.2008.12.022 1 APPLIED CATALYSIS B-ENVIRONMENTAL, v.89, no.3-4, pp.406 - 410 APPLIED CATALYSIS B-ENVIRONMENTAL 89 3-4 406 410 scie scopus 000267203200013 2-s2.0-65649091720 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article TITANIUM-OXIDE PHOTOCATALYSTS WATER DECOMPOSITION ADSORPTION CATALYSIS Photocatalytic oxidation of gaseous acetaldehyde TiO2 nano-particles High-silica mordenite zeolites having hydrophobic character Mechanical blending