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Highly effective photocatalytic system comprising semiconductor photocatalyst and supported bimetallic non-photocatalyst for selective reduction of nitrate to nitrogen in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
50789 46813 2012 4 PDF Available
Title
Highly effective photocatalytic system comprising semiconductor photocatalyst and supported bimetallic non-photocatalyst for selective reduction of nitrate to nitrogen in water
Abstract

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 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.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Pt/TiO2–Sn-Pd/Al2O3 effectively promoted photocatalytic reduction of NO3–. ► H2 was formed by photoreduction of water over Pt/TiO2. ► Formed H2 was consumed to reduce NO3– over Sn-Pd/Al2O3.

Keywords
Photocatalytic nitrate reduction; Groundwater remediation; Titanium oxide; Bimetallic palladium catalyst
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Highly effective photocatalytic system comprising semiconductor photocatalyst and supported bimetallic non-photocatalyst for selective reduction of nitrate to nitrogen in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 20, 5 April 2012, Pages 99–102
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us