10.1007/s40097-014-0116-z

Fabrication of perovskite-type oxide La0.5Pb0.5MnO3 nanoparticles and its dye removal performance

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  • Haman Tavakkoli*1,
  • Tahereh Moayedipour1,
  1. Department of Chemistry, Khouzestan Science and Research Branch, Islamic Azad University, Ahvaz, IR
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Published in Issue 24-07-2014

How to Cite

Tavakkoli, H., & Moayedipour, T. (2014). Fabrication of perovskite-type oxide La0.5Pb0.5MnO3 nanoparticles and its dye removal performance. Journal of Nanostructure in Chemistry, 4(3 (September 2014). https://doi.org/10.1007/s40097-014-0116-z
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Abstract

Abstract La 0.5 Pb 0.5 MnO 3 perovskite-type oxide is prepared by sol–gel method. The physical and chemical properties of a nanoparticle were characterized by differential thermal analysis (DTA), thermogravimetric analysis, XRD, and scanning electron microscopy (SEM) techniques. The adsorption effect of the sample is evaluated by removal of Eosin dye from aqueous solution. The results of XRD indicate that the perovskite-type oxide has a good crystal phase at 650 °C. The DTA, XRD, and SEM data revealed that La 0.5 Pb 0.5 MnO 3 nano particles are prepared successfully via sol–gel modified pechini method. These nanoparticles showed the excellent adsorption efficiency towards Eosin dye in aqueous solution. The adsorption studies were carried out at different pH values, dye concentrations, various adsorbent dosages, and contact time in a batch experiment. The dye removal efficiency was found to be decreased with increasing in initial pH of the dye solution, and nanoadsorbent exhibited good dye removal efficiency at acidic pH specially pH 1. Experimental results indicated that the adsorption kinetic data follow a pseudo-first-order rate for tested dye. The isotherm evaluations revealed that the Freundlich model attained better fits to the experimental equilibrium data than the Langmuir and Temkin models.

Keywords

  • Perovskite-type oxide,
  • Nanopowder,
  • Dye removal,
  • Eosin
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