Influence of Cr doping on the microstructural, optical and photocatalytic properties of ZnO synthesized by sol-gel method

S. A. Ansari, Fahad Alam, A. Khan, Wasi Khan, M. Chaman, M. Muneer, A. H. Naqvi

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Nanosized Cr doped ZnO particles were synthesized by facile sol-gel method. The structural, optical and photocatalytic properties of the particles have been investigated by XRD, UV-Vis and FTIR spectroscopy at room temperature for 0%, 0.5%, 1%, 3% and 5% doping concentrations of Cr. X-ray diffraction analysis reveals that the Cr doped ZnO occurs in a single phase polycrystalline nature with wurtzite lattice. The average crystallite size decreases with increase in Cr concentration. The UV-Vis spectra of the nanoparticles indicate decrease in band gap energy upto 3.47 eV for 5% Cr substituion. FTIR results also show the correlation between structural and optical properties of the nanoparticles. The photocatalytic activity of the nanoparticles was investigated by studying the degradation of a dye derivative, Acid Red 17 under UV light source as a function of irradiation time. An increase in the degradtion of the dye was observed from 24.86% to 66.47 % from pure nanosized ZnO to Cr doped ZnO during 70 min of illumination. © 2012 Bentham Science Publishers.
Original languageEnglish (US)
Pages (from-to)581-586
Number of pages6
JournalCurrent Nanoscience
Volume8
Issue number4
DOIs
StatePublished - Jul 23 2012
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-23

ASJC Scopus subject areas

  • Biomedical Engineering
  • Bioengineering
  • Pharmaceutical Science
  • Biotechnology
  • Medicine (miscellaneous)

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