期刊
CHEMICAL ENGINEERING JOURNAL
卷 204, 期 -, 页码 54-64出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.07.077
关键词
Agrochemicals; Water detoxification; Photocatalytic oxidation; Semiconductor materials
资金
- Ministerio de Espana de Ciencia e Innovacion [AGL2010-20458-C02-01]
- Ramon and Cajal Subprogram
- Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria [RTA2011-00022-00-00]
Heterogeneous photocatalysis with different semiconductor materials such as zinc oxide (ZnO), titanium dioxide (TiO2), tungsten (VI) oxide (WO3), tin (IV) oxide (SnO2) and zinc sulphide (ZnS) in aqueous suspensions has been investigated for the removal of eight miscellaneous pesticides (ethoprophos, isoxaben, metalaxyl, metribuzin, pencycuron, pendimethalin, propanil and tolclofos-methyl). The experiments were carried out at pilot plant scale using compound parabolic collectors under natural sunlight, comparison of catalysts showed that ZnO is the most efficient for catalyzing the removal of these compounds. The photocatalysis of these compounds using ZnO followed first-order kinetics. The residual levels at the end (240 min) of the ZnO experiment were lower than 0.8 mu g L-1. (C) 2012 Elsevier B.V. All rights reserved.
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