2024-03-28T15:30:23Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/490922022-11-17T02:08:08Zhdl_2115_20051hdl_2115_144Highly effective photocatalytic system comprising semiconductor photocatalyst and supported bimetallic non-photocatalyst for selective reduction of nitrate to nitrogen in waterHirayama, JunKondo, HirofumiMiura, Yu-kiAbe, RyuKamiya, YuichiPhotocatalytic nitrate reductionGroundwater remediationTitanium oxideBimetallic palladium catalyst431Photocatalytic 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 N2, 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 N2) for the present photocatalytic system were higher than those for TiO2 photocatalyst directly-modified with Sn-Pd particles.Elsevier B.V.Journal Articleapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttp://hdl.handle.net/2115/49092https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/49092/2/CC20_99-102.pdfhttps://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/49092/1/Supplementary_material.docx1566-7367Catalysis Communications20991022012-04-05enginfo:doi/10.1016/j.catcom.2012.01.011author