期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 89, 期 3-4, 页码 406-410出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2008.12.022
关键词
Photocatalytic oxidation of gaseous acetaldehyde; TiO2 nano-particles; High-silica mordenite zeolites having hydrophobic character; Mechanical blending
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据