BMC Chemistry (Nov 2023)

Removal of Pb(II) ions by cellulose modified-LaFeO3 sorbents from different biomasses

  • Shimaa M. Ali,
  • Mohamed A. El Mansop,
  • Ahmed Galal,
  • Soha M. Abd El Wahab,
  • Wafaa M. T. El-Etr,
  • Hanaa A. Zein El-Abdeen

DOI
https://doi.org/10.1186/s13065-023-01066-2
Journal volume & issue
Vol. 17, no. 1
pp. 1 – 9

Abstract

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Abstract LaFeO3 perovskite is prepared by the cellulose-modified microwave-assisted citrate method using two different biomasses as a cellulose source; rice straw (RS) and banana peel (BP). The prepared samples are assigned as LaFeO3/cellulose-RS and as LaFeO3/cellulose-BP, respectively. Raman Spectra prove the presence of perovskite and cellulose phases, as well as biochar resulted from the thermal treatment of the cellulose. LaFeO3/cellulose-RS has a cauliflower morphology while, two phases are observed for LaFeO3/cellulose-BP, mesoporous cellulose phase and octahedral LaFeO3 nanoparticles as shown by scanning electron microscope (SEM) images. LaFeO3/cellulose-BP has higher porosity and larger BET surface area than LaFeO3/cellulose-RS. Both samples are applied for the removal of Pb(II) ions from aqueous solution by adsorption. The adsorption follows Langmuir isotherm, with maximum adsorption capacities of 524 and 730 mg/g for LaFeO3/cellulose-RS and LaFeO3/cellulose-BP, respectively. Cellulose precursors from different biomasses affect structural and morphological properties of LaFeO3/cellulose samples as well as the sorption performance for Pb(II) ions. BP is more recommended than RS, as a biomass, in the present study.

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