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Dr. Islam Moustafa :: Publications:

Title:
Effect of organic acids precursors on the morphology and size of ZrO2 nanoparticles for photocatalytic degradation of Orange G dye from aqueous solutions
Authors: Islam M. Ibrahim , Moustafa E. Moustafa, Mohamed R. Abdelhamid
Year: 2016
Keywords: Zirconium oxide nanoparticles XRD HR-TEM Photocatalytic degradation Orange G dye
Journal: Journal of Molecular Liquids
Volume: 223
Issue: Not Available
Pages: 741–748
Publisher: elsevier
Local/International: International
Paper Link: Not Available
Full paper Islam Moustafa_1st.pdf
Supplementary materials Not Available
Abstract:

Zirconium oxide nanoparticles were prepared by precipitation from different organic acid precursors (oxalic, tartaric, citric, succinic, malic, maleic and malonic) and ignition at 750 °C. The as-prepared samples were charac-terized by XRD, FT-IR, UV–Vis and HR-TEM techniques. XRD proved the crystalline monoclinic structure of the samples with average crystal sizes ranged from 7.1 nm (for citrate) to 35.1 nm (for maleic) precursor. The FT-IR spectra of the nanooxides showed the characteristic bands due to νOH, δOH and νZr-O at 3444, 1633 and 498 cm−1 , respectively. The UV–Vis spectra proved the semiconductor nature of the samples with optical energy gap ranging from 1.80 to 4.30 eV. One of the prepared samples was tested as catalyst for the photodegradation of Orange G dye in wastewater samples in presence of H2O2 where 100% removal of the dye was obtained after about 180 min.

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