Functionalized Magnetic Nanoparticles for Heavy Metal Removal from Aqueous Solutions: Kinetics and Equilibrium Modeling - Advanced Materials for Agriculture, Food and Environmental Safety - page 289

11
Functionalized Magnetic Nanoparticles
for Heavy Metal Removal from Aqueous
Solutions: Kinetics and Equilibrium
Modeling
Ravindra Kumar Gautam*, Amita Jaiswal and
Mahesh Chandra Chattopadhyaya
Environmental Chemistry Research Laboratory, Department of Chemistry,
University of Allahabad, Allahabad, India
Abstract
Continuous discharge of heavy metals into aquatic bodies poses toxic ef ects to
biological systems. Functionalized magnetic nanoparticles have recently been
examined as promising platforms for removal of heavy metals from aqueous solu-
tions. Magnetic nanoparticles of er a new vista of separation and purii cation tech-
nology for heavy metals. h e multifunctional magnetic nanoparticles have been
successfully applied for the reduction of toxic metal ions up to ppb level in treated
wastewater. h is chapter highlights the potential application of magnetic nanopar-
ticles for the removal of heavy metals from aqueous solutions.
Keywords: Magnetic nanoparticles, nanocomposites, adsorption, heavy metals,
wastewater treatment, kinetics, modeling
11.1 Introduction
Pollution by heavy metals is a serious threat to aquatic ecosystems because
some of these metals are potentially toxic, even at very low concentrations.
Contamination of heavy metals in the surroundings has done great harm to
human and other organisms due to their high toxicity and carcinogenicity