LaFeO 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 LaFeO/cellulose-RS and as LaFeO/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. LaFeO/cellulose-RS has a cauliflower morphology while, two phases are observed for LaFeO/cellulose-BP, mesoporous cellulose phase and octahedral LaFeO nanoparticles as shown by scanning electron microscope (SEM) images. LaFeO/cellulose-BP has higher porosity and larger BET surface area than LaFeO/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 LaFeO/cellulose-RS and LaFeO/cellulose-BP, respectively. Cellulose precursors from different biomasses affect structural and morphological properties of LaFeO/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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