Adsorptive and photocatalytic performance of TiO2 pillared montmorillonite in degradation of endocrine disruptors having different hydrophobicity

被引:136
作者
Ooka, C
Yoshida, H
Horio, M
Suzuki, K
Hattori, T
机构
[1] Nagoya Municipal Ind Res Inst, Atsuta Ku, Nagoya, Aichi 4560058, Japan
[2] Nagoya Univ, Grad Sch Engn, Dept Appl Chem, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[3] Natl Inst Adv Ind Sci & Technol, Ceram Res Inst, Moriyama Ku, Nagoya, Aichi 4638560, Japan
关键词
TiO2 pillared clay; photocatalyst; endocrine disruptor; adsorption; hydrophobic interaction; photodegradation;
D O I
10.1016/S0926-3373(02)00169-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
TiO2 pillared clay was applied for the adsorption-photocatalytic degradation of the endocrine disruptors with various hydrophobicities (di-n-butyl phthalate, diethyl phthalate, dimethyl phthalate and bisphenol-A). The hydrothermal treatment developed the crystallinity of the TiO2 pillar and the size of the TiO2 crystallites, and enhanced the photocatalytic degradation rate. However, the hydrothermal treatment in hard condition made the specific photocatalytic activity decrease since the size of crystallites increased. The surface hydrophobicity of the pillared clay was not affected so much, but reduced slightly, by the hydrothermal treatment. Higher hydrophobic endocrine disruptor was more adsorbed and enriched on the TiO2 pillared clay. Enrichment of the reactant enhanced the rate of photocatalytic degradation on the pillared clay. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:313 / 321
页数:9
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