Adsorptive Elimination of Heavy Metals from Aqueous Solution Using Magnetic Chitosan/Cellulose-Fe(III) Composite as a Bio-Sorbent

Abstract

Magnetic chitosan/cellulose nanofiber-Fe(III) [M-Ch/CNF-Fe(III)] composites were isolated for the elimination of Cr(VI), Cu(II), and Pb(II) from aqueous solution. Various analytical methods, such as field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction analysis (XRD), and thermogravimetric analysis (TGA) were employed to determine the morphological, physicochemical, and thermal properties of the isolated M-Ch/CNF-Fe(III) composites. It was found that the M-Ch/CNF-Fe(III) composites were porous materials, and they have the potential to be implemented as an adsorbent for heavy metals removal. The adsorption efficiency of M-Ch/CNF-Fe(III) composites was determined for Cr(VI), Cu(II), and Pb(II) elimination with changing pH (pH 1.0–8.0), adsorbent doses (0.05–1.0 g), time (15–90 min), and temperature (28–80 °C). In addition, isothermal and kinetics studies were conducted to assess the adsorption behavior and mass transfer phenomena of M-Ch/CNF-Fe(III) composites as an adsorbent for Cr(VI), Cu(II) and Pb(II) elimination from aqueous solution. The outcomes of the present study reveal that the M-Ch/CNF-Fe(III) composites could be utilized as an adsorbent for the Cr(VI), Cu(II), and Pb(II) elimination from industrial effluents.

Recent Progress on the Adsorption of Heavy Metal Ions Pb(II) and Cu(II) from Wastewater

“…The maximum adsorption capacity of Pb(II) was 205.2 mg/g. Mardhia et al [ 8 ] investigated the removal of Pb(II) from an aqueous solution by magnetic chitosan/cellulose nanofiber-Fe (III) [M-Ch/CNF-Fe(III)] composites. The results show that M-Ch/CNF-Fe(III) composites are porous materials and have potential as heavy metal adsorbents.…”

“…[ 128 ] from Elsevier), ( c ) magnetic chitosan/cellulose nanofiber-Fe(III) composite (reproduced with permission from Ref. [ 8 ] from MDPI) and ( d ) FE-SEM images of poly(vinylalcohol)–chitosan nanofibers membranes (reproduced with permission from Ref. [ 102 ] from Elsevier).…”

“…from MDPI), (b) chitosan/poly(vinylalcohol)/ZnO beads (reproduced with permission from Ref [128]. from Elsevier), (c) magnetic chitosan/cellulose nanofiber-Fe(III) composite (reproduced with permission from Ref [8]. from MDPI) and (d) FE-SEM images of poly(vinylalcohol)-chitosan nanofibers membranes (reproduced with permission from Ref [102].…”

A review on environmental chemodynamics, isothermal, kinetics, and thermodynamics modeling for the adsorptive removal of Cr(vi) from the industrial effluent using magnetic nanoparticles as a bio-sorbent

“…Surface modification of the adsorbent in a magnetic field has been shown to enhance adsorption efficiency because of the increasing reactive functional groups on the surface of the adsorbent. 7,26,96 The possible mechanisms for the adsorptive removal of Cr( vi ) can be expressed as shown in Fig. 10.…”

“…10. 7,96 The agricultural biomass-based magnetic adsorbent shows a notable advantage over commercial adsorbents in the removal of Cr( vi ) from industrial effluents. However, there are limited studies on the scaled-up adsorptive removal of Cr( vi ) from industrial effluent.…”