Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 601, Issue -, Pages 85-87Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.02.142
Keywords
Oxide materials; Crystal structure; X-ray diffraction; Kinetics
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Funding
- CSIR, New Delhi
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Bismuth oxide (Bi2O3) is prepared in its pure body centered cubic form (gamma) without surfactant at a calcination temperature of 500 degrees C and its photocatalytic degradation property is studied using methyl orange as the model pollutant. gamma-Bi2O3 degrades 95.2% of methyl orange in 90 min and the kinetics of degradation is studied using pseudo first and second order. The obtained results are found to be best fit in pseudo second order equation which predicts that the adsorption is controlled by more than one step and it is verified from the Weber- Morris equation.
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