DOI: 10.5061/dryad.zpc866t54
title: Decolorization of crystal violet using nano-sized novel fluorite structure Ga2Zr2-xWxO7 photocatalyst under visible light irradiation

description: Fluorite type Zr based oxides with the composition Ga2Zr2-xWxO7 (x=0,
 0.05, 0.1 and 0.15) were prepared using the citrate technique. Appropriate
 characterizations for all prepared materials were carried out. XRD
 clarified that all the undoped and W doped Ga2Zr2O7 samples were
 crystallized in the cubic fluorite phase structure. The average particle
 size of the prepared samples was in the range (3-8 nm). The lowest band
 gap (1.7 eV) and the highest surface area (124.3 m2/g) were recorded for
 Ga2Zr0.85W0.15O7. The Photocatalytic impacts of the prepared systems were
 studied by removal of crystal violet dye (CV) employing visible
 illumination taking in consideration initial dye concentrations, duration
 of visible irradiation treatment, catalysts dose and the dopant
 concentration. The obtained results showed faster dye removal with the
 boost of the catalyst dosage. W doping shifted the absorption to the
 visible light range by decreasing the band gap from 4.95 eV for parent
 Ga2Zr2O7 to 1.7 eV for 15 mol % tungsten doped Ga2Zr2O7 enhancing the
 photocatalytic decolorization of CV from 4.2% to 83.6% for undoped and 15
 mol% W doped Ga2Zr2O7 respectively at optimum operating conditions (pH 9,
 1g L-1 catalyst dose and 300 min). Complete CV degradation was attained by
 assistant of 25 mmol L-1 hydrogen peroxide. The reaction is aligned to
 pseudo first order kinetic. UV- visible and gas chromatography-mass
 spectrometry (GC-MS) studies were conducted to identify the by-products at
 the end of the reaction. GC-MS confirms the N-de-methylation followed by
 benzene ring rupture root forming short aliphatic acids. Fluorite type Zr
 based oxides with the composition Ga2Zr2-xWxO7 (x=0, 0.05, 0.1 and 0.15)
 were prepared using the citrate technique. Appropriate characterizations
 for all prepared materials were carried out. XRD clarified that all the
 undoped and W doped Ga2Zr2O7 samples were crystallized in the cubic
 fluorite phase structure. The average particle size of the prepared
 samples was in the range (3-8 nm). The lowest band gap (1.7 eV) and the
 highest surface area (124.3 m2/g) were recorded for Ga2Zr0.85W0.15O7. The
 Photocatalytic impacts of the prepared systems were studied by removal of
 crystal violet dye (CV) employing visible illumination taking in
 consideration initial dye concentrations, duration of visible irradiation
 treatment, catalysts dose and the dopant concentration. The obtained
 results showed faster dye removal with the boost of the catalyst dosage. W
 doping shifted the absorption to the visible light range by decreasing the
 band gap from 4.95 eV for parent Ga2Zr2O7 to 1.7 eV for 15 mol % tungsten
 doped Ga2Zr2O7 enhancing the photocatalytic decolorization of CV from 4.2%
 to 83.6% for undoped and 15 mol% W doped Ga2Zr2O7 respectively at optimum
 operating conditions (pH 9, 1g L-1 catalyst dose and 300 min). Complete CV
 degradation was attained by assistant of 25 mmol L-1 hydrogen peroxide.
 The reaction is aligned to pseudo first order kinetic. UV- visible and gas
 chromatography-mass spectrometry (GC-MS) studies were conducted to
 identify the by-products at the end of the reaction. GC-MS confirms the
 N-de-methylation followed by benzene ring rupture root forming short
 aliphatic acids.
description: the Dataset  has been collected through characterization of the
 prepared materials by several instruments and experimental data from the
 desigend experiments. All the dataset information are processed through
 the attached Exel sheets.
description: Revise the functions of each sheet of the attached excel
 file. No missing values, all data avalabile in excel
 file.