期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 19, 期 9, 页码 3727-3734出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-011-0719-6
关键词
Photocatalysis; TiO2; beta-SiC foam; Diuron; Water treatment; Photoreactor
This study of photocatalytic degradation of wastewater was carried out in alveolar cell beta-SiC foam-structured photocatalytic reactors working in a recirculation mode. The immobilization of TiO2 on beta-SiC foams was efficiently obtained through a sol-gel technique in acidic conditions. In order to optimize degradation yields obtained by the foam-structured prototype reactor for the photocatalytic water treatment, the operating conditions of the photoreactor have been investigated and the efficiency of the process was evaluated by measuring the photocatalytic degradation of Diuron (3-(3,4-dichlorophenyl)-1,1-dimethyl-urea)) under UV irradiation. Kinetic studies were carried out by investigating the influence of different parameters controlling the reaction (TiO2 loading and beta-SiC foam cell size). The ageing of TiO2/beta-SiC foam photocatalytic materials and the mineralization (TOC, Cl-, NO3- and NH4+) of Diuron were investigated.
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