• About
  • Policies
  • What is openaccess
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Chemistry
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Chemistry
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      TiO2-Al2O3 binary mixed oxide surfaces for photocatalytic NOx abatement

      Thumbnail
      View / Download
      1.5 Mb
      Author
      Soylu, A. M.
      Polat, M.
      Erdogan, D. A.
      Say, Z.
      Yıldırım, C.
      Birer, Ö.
      Ozensoy, E.
      Date
      2014
      Source Title
      Applied Surface Science
      Print ISSN
      0169-4332
      Electronic ISSN
      1873-5584
      Publisher
      Elsevier
      Volume
      318
      Pages
      142 - 149
      Language
      English
      Type
      Article
      Item Usage Stats
      110
      views
      91
      downloads
      Abstract
      TiO2-Al2O3 binary oxide surfaces were utilized in order to develop an alternative photocatalytic NOx abatement approach, where TiO2 sites were used for ambient photocatalytic oxidation of NO with O2 and alumina sites were exploited for NOx storage. Chemical, crystallographic and electronic structure of the TiO2-Al2O3 binary oxide surfaces were characterized (via BET surface area measurements, XRD, Raman spectroscopy and DR-UV-Vis Spectroscopy) as a function of the TiO2 loading in the mixture as well as the calcination temperature used in the synthesis protocol. 0.5 Ti/Al-900 photocatalyst showed remarkable photocatalytic NOx oxidation and storage performance, which was found to be much superior to that of a Degussa P25 industrial benchmark photocatalyst (i.e. 160% higher NOx storage and 55% lower NO2(g) release to the atmosphere). Our results indicate that the onset of the photocatalytic NOx abatement activity is concomitant to the switch between amorphous to a crystalline phase with an electronic band gap within 3.05-3.10 eV; where the most active photocatalyst revealed predominantly rutile phase together and anatase as the minority phase.
      Keywords
      Al2O3
      DeNOx
      NOx abatement
      Photocatalysis
      TiO2
      Permalink
      http://hdl.handle.net/11693/26853
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.apsusc.2014.02.065
      Collections
      • Department of Chemistry 594
      Show full item record

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      Login

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 1771
      Copyright © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy