期刊
CATALYSIS COMMUNICATIONS
卷 20, 期 -, 页码 99-102出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2012.01.011
关键词
Photocatalytic nitrate reduction; Groundwater remediation; Titanium oxide; Bimetallic palladium catalyst
Photocatalytic reduction of NO3- under UV irradiation in the presence of ethanol was carried out in the presence of semiconductor photocatalyst Pt/TiO2 and supported bimetallic non-photocatalyst Sn-Pd/Al2O3, which were dispersed in water. This system effectively and selectively promoted the photocatalytic reduction of NO3- to N-2, whereas Pt/TiO2 or Sn-Pd/Al2O3 alone showed no or little activity under the reaction conditions. The decomposition rate of NO3- and selectivity to gaseous nitrogen compounds (mainly N-2) for the present photocatalytic system were higher than those for TiO2 photocatalyst directly-modified with Sn-Pd particles. (C) 2012 Elsevier BM. All rights reserved.
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