Iron oxide induced bagasse nanoparticles for the sequestration of Cr⁶⁺ ions from tannery effluent using a modified batch reactor

Abstract

The emphasis of the present study is to investigate the potential of magnetic iron oxide nanoparticles synthesized using bagasse from sugarcane (M‐NIOB). M‐NIOB was infused onto the modified batch reactor (M‐BR) stirrers using mesh structures for the adsorption of Cr6+ contained in effluent from the leather industry. M‐NIOB exhibited supermagnetic properties under an external magnetic field with a saturation magnetization value of 9.192 emu/g at room temperature. M‐NIOB nanoparticles were characterized by scanning electron microscopy, transmission electron microscopy, X‐ray diffraction, vibrating sample magnetometer, and Brunauer–Emmett–Teller analysis. The size of the M‐NIOB particles ranged from 50 to 200 nm. The most favorable time, pH, and temperature for the application of M‐NIOB to Cr6+ removal from tannery effluent was found to be 180 min, 5, and 318 K, respectively. M‐NIOB adsorbent performed its best at an adsorbent dosage of 800 mg/150 mL with a particle size of 150 nm. Kinetic and thermodynamic studies have been conducted. The applicability of various adsorption models for the Cr6+ adsorption data was tested. Moreover, the desorption studies carried out at 60 °C proved the capability of M‐NIOB for regeneration and reuse. Hence, M‐NIOB could be potentially applied for the treatment of effluent that has Cr6+ as a major constituent. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46683.

Comparison of Cr(VI) Adsorption Using Synthetic Schwertmannite Obtained by Fe3+ Hydrolysis and Fe2+ Oxidation: Kinetics, Isotherms and Adsorption Mechanism

“…New materials based on chromium affinity towards iron-containing minerals are still being developed. Researchers have published reports on novel solutions implementing iron oxides and oxyhydroxides properties [ 20 , 21 ].…”

Nano Modifications of Biochar to Enhance Heavy Metal Adsorption from Wastewaters: A Review

“…Preparation of sugar cane bagasse-Fe 3 O 4 composite was successfully carried out by coprecipitation of bagasse residue with FeSO 4 •7H 2 O and FeCl 3 •6H 2 O in the presence of ammonia followed by calcination. 61 The TEM analysis of the product revealed occurrence of spherical or rod-shaped structures of the modified bagasse. The interaction of bagasse with Fe−OH bond in their hybrid was confirmed by shifting the peak at 897 cm −1 in the bagasse to 874.6 cm −1 .…”

Agricultural waste biomass-assisted nanostructures: Synthesis and application

“…Due to high content of silica in SCB, Norhasyimi and co-workers prepared SBA-15 using acid washed SCB ash as silica source and P123 as neutral template [34]. The BET surface area and total pore volume of synthesized In 2018, Jabasingh and co-workers prepared 50-200 nm magnetic iron oxide nanoparticles by coprecipitation of Fe(III)/Fe(II) in the presence of ammonia and sugar cane bagasse under inert atmosphere followed by calcination in furnace [36]. This magnetic material can be used as supports for adsorption of Cr 6+ .…”