Abstract
Contamination of industrial and dietary water with Cr(VI) ions is known as a global concern. Industrial wastes containing elevated Cr(VI) concentration are hazardous and harmful to people and animals, if inappropriately treated. Consequently, in the current research, a novel nanocomposite of activated nanobentonite@cobalt ferrite@carboxymethylcellulose (ANB@CoFe2O4@CMC) is generated and characterized. Several characterization techniques were employed to confirm the structure of as-prepared ANB@CoFe2O4@CMC. The mean particle size range of this nanocomposite was found to be 22.5–26.2 nm. Through batch adsorption assessments, ANB@CoFe2O4@CMC was employed and optimized to remove Cr(VI) ions from aquatic medium providing optimum conditions of pH 2.0, 25–30 min shaking time, 25 mg nanocomposite dosage at 25 °C reaction temperature. Freundlich model was extremely relevant via linear and nonlinear expression. Thermodynamic investigations were investigated to conclude that both exothermal and spontaneous tendencies in governing Cr(VI) adsorptive uptake. The ANB@CoFe2O4@CMC was remarkably stable after five subsequent runs of regenerating and recycling. This investigation displayed the potential of ANB@CoFe2O4@CMC as a powerful nanocomposite material for Cr(VI) recovery from diverse waters via a microcolum technique, exhibiting uptake values up to 87.9–95.8 %. As a result, the evaluated ANB@CoFe2O4@CMC could be successfully illustrated a superior material for effective multi-uptake Cr(VI) ions from water.
Published Version
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