Removal of indoor pollutants under UV irradiation by a composite TiO2-zeolite sheet prepared using a papermaking technique

被引：122

作者：

Ichiura, H ^{[1
]}

Kitaoka, T ^{[1
]}

Tanaka, H ^{[1
]}

机构：

[1] Kyushu Univ, Dept Forest & Forest Prod Sci, Fukuoka 8128581, Japan

来源：

CHEMOSPHERE | 2003年 / 50卷 / 01期

基金：

日本学术振兴会;

关键词：

photocatalyst; adsorbent; composite TiO2-zeolite sheet; papermaking technique; indoor pollution;

D O I：

10.1016/S0045-6535(02)00604-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Toluene and formaldehyde are malodorous and cause indoor pollution. These materials have received much attention as hazardous and malodorous substances. It is well known that long-term exposure to even fairly low levels of toluene and formaldehyde brings about the risk of asthma, and eczema. In this study, a composite TiO2-zeolite (ZE) sheet prepared using a papermaking technique was applied to remove toluene and formaldehyde under UV irradiation. The optimum composition of the TiO2 (Ti)-ZE sheet was studied in detail with regard to the effective removal of various indoor pollutants. Gaseous toluene and formaldehyde were removed by a composite TiO2-ZE sheet with different efficiencies depending upon the ratio of Ti/ZE in the composite sheet. The composite sheets could decompose formaldehyde and toluene repeatedly after being recharged. It was shown that the sheets are potentially applicable as highly functional materials to be placed on walls and ceilings of houses for the removal of various indoor pollutants. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：79 / 83

页数：5

共 23 条

[1] Photocatalytic oxidation of gaseous toluene on anatase TiO2 catalyst:: mechanistic aspects and FT-IR investigation [J].