skip to main content

Title: Co-doped mesoporous titania photocatalysts prepared from a peroxo-titanium complex solution

Graphical abstract: - Highlights: • Peroxotitanium complex for the synthesis of doped photocatalysts. • Fabrication of N doped and N/Ag co-doped photocatalysts. • Characterization of photocatalysts by SEM, XRD, BET, DRS and XPS. • Bench scale photocatalysis under simulated solar light using crystal violet pollutant. - Abstract: In this study, nitrogen doped and nitrogen/silver co-doped TiO{sub 2} photocatalsysts were fabricated using a sol–gel method at room temperature. The obtained gels were neutralized, washed with pure water, and calcined at 400 °C for 4 h. The photocatalysts were characterized by scanning and transmission electron microscopy, X-ray diffraction, diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, and BET specific surface area. The results showed that spherical particles with anatase structure were produced after annealing at 400 °C. N 1s (400 eV) and Ag 3d (367.3 eV) states indicated that nitrogen doping and silver co-doping were in the form of NO bonds and AgO, respectively. The photocatalytic activity of photocatalysts was investigated using a batch reactor system exposed to artificial solar irradiation. Both nitrogen and silver/nitrogen co-doped materials were effective in the photocatalytic degradation of hexamethyl pararosaniline chloride.
Authors:
 [1] ;  [2] ;  [3] ; ;  [4] ;  [5] ;  [1]
  1. Faculty of Engineering and Information Technology, University of Technology Sydney, NSW 2007 (Australia)
  2. Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba, QLD 4350 (Australia)
  3. Faculty of Science, University of Technology Sydney, NSW 2007 (Australia)
  4. The Research Institute for Catalysis, Chonnam National University, Gwangju 500-757 (Korea, Republic of)
  5. (Korea, Republic of)
Publication Date:
OSTI Identifier:
22341813
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 49; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; DOPED MATERIALS; IRRADIATION; NANOSTRUCTURES; NITRIC OXIDE; NITROGEN; PHOTOCATALYSIS; SCANNING ELECTRON MICROSCOPY; SILVER; SILVER OXIDES; SIMULATION; SOL-GEL PROCESS; SYNTHESIS; TITANIUM COMPLEXES; TITANIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY