Bioactivities
Vol. 1 No. 1 (2023): Bioactivities

Biosorption of Pd(II) from Aqueous Solution using Leaves of Moringa oleifera as a Low-cost Biosorbent

Dinani Amorim (Department of Chemical Engineering, State University of Maringá, Colombo-5790 (Brazil))
Bruno Costa (Department of Chemical Engineering, State University of Maringá, Colombo-5790 (Brazil))
Denis Martinez (Department of Chemical Engineering, State University of Maringá, Colombo-5790 (Brazil))



Article Info

Publish Date
26 Jun 2023

Abstract

Palladium ion (Pd(II)) is one of the hazardous metal pollutants commonly found in industrial effluents and poses severe environmental and human health impacts. The present study has chosen the leaves of Moringa oleifera (L-MO) as a potential biosorbent for removing Pd(II) from the aqueous solution. Various parameters such as pH, biosorbent dose, and initial Pd(II) concentration were optimized for maximum removal of Pd(II) using standard protocols. The Fourier-transform infrared spectroscopy study was performed to identify the functional groups involved in Pd(II) biosorption mechanism. The analysis of FTIR spectra confirmed the involvement of functional groups such as C–O, C=O, C–H, and O–H in the biosorption of Pd(II) on the surface of L-MO. The biosorption of Pd(II) was highest at pH 6. The sorption equilibrium data were well-fitted with the Langmuir isotherm model (R2 = 0.9896). The highest adsorption capacity of L-MO was 41.15 mg/g. It is concluded that the L-MO could be used as a potentially low-cost novel biosorbent to remove Pd(II) from contaminated water.

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Journal Info

Abbrev

bioactivities

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Chemistry Medicine & Pharmacology

Description

Bioactivities is a double-blind peer-reviewed journal for research activity on bioactivities of materials or compounds. This journal aims to provide a means for sustained discussion of relevant issues that fall within the focus and scopes of the journal which can be examined empirically in the ...