The photocatalytic investigation of methylene blue dye with Cr doped zinc oxide nanoparticles

Journal Article · Fri Aug 28 04:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4929218· OSTI ID:22488818

Ray, Rajeev ^[1]; Kumar, Ashavani ^[2]

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1. School of Material Science and Nanotechnology, National Institute of Technology Kurukshetra, Haryana (India)
2. Department of Physics, National Institute of Technology Kurukshetra, Haryana (India)

The present work reports eco-friendly and cost effective sol-gel technique for synthesis of Chromium doped ZnO nanoparticles at room temperature. In this process Zinc nitrate, Chromium nitrate were used as precursor. Structural as well as optical properties of Cr induced ZnO samples were analysed by X-ray diffraction technique (XRD), SEM, PL and UV-Visible spectroscopy (UV-Vis) respectively. XRD analysis shows that the samples have hexagonal (wurtzite) structure with no additional peak which suggests that Cr ions fit into the regular Zn sites of ZnO crystal structure. By using Scherrer’s formula for pure and Cr doped ZnO samples the average grain size was found to be 32 nm. Further band gap of pure and doped ZnO samples have been calculated by using UV-Vis spectra. The photo-catalytic degradation of methyl blue dye under UV irradiation was examined for synthesized samples. The results show that the concentration plays an important role in photo-catalytic activity.

• OSTI ID: 22488818
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1675; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
CHROMIUM IONS
CHROMIUM NITRATES
CONCENTRATION RATIO
CRYSTAL STRUCTURE
DOPED MATERIALS
GRAIN SIZE
IRRADIATION
METHYLENE BLUE
NANOPARTICLES
OPTICAL PROPERTIES
PHOTOCATALYSIS
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SYNTHESIS
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA
X-RAY DIFFRACTION
ZINC NITRATES
ZINC OXIDES