Publication Type : Journal Article
Publisher : Elsevier
Source : Materials Science and Engineering: C 2012, 32 (3), 581–586. https://doi.org/10.1016/j.msec.2011.12.015.
Url : https://www.sciencedirect.com/science/article/pii/S0928493111003729
Campus : Amritapuri
School : School for Sustainable Futures
Year : 2012
Abstract : Gum kondagogu (GK) modified magnetic iron oxide nanoparticles (MNP) have been prepared by co-precipitating Fe2 + and Fe3 + ions using ammonia solution in presence of GK biomacromolecules. The TEM analysis revealed the presence of nearly spherical size iron oxide particles with diameters in the range of 8−15 nm; while the XRD results confirmed the crystallinity of iron oxide nanoparticles. The magnetic measurements demonstrated the ferromagnetic behavior of GK − MNP with a magnetic saturation value of ~ 60 emu/g. The removal efficiencies for a variety of metal cations by the GK − MNP were determined quantitatively in the order: Cd2 + > Cu2 + > Pb2 + > Ni2 + > Zn2 + > Hg2 + at a pH of 5.0 ± 0.1 and at a temperature of 30.0 ± 1.0 °C. A maximum of 106.8 mg/g and a minimum of 35.07 mg/g adsorption capacities were observed for the Cd2 + and Hg2 + ions, respectively using the Langmuir isotherm model.
Cite this Research Publication : Saravanan, P.; Vinod, V. T. P.; Sreedhar, B.; Sashidhar, R. B. "Gum Kondagogu Modified Magnetic Nano-Adsorbent: An Efficient Protocol for Removal of Various Toxic Metal Ions". Materials Science and Engineering: C 2012, 32 (3), 581–586. https://doi.org/10.1016/j.msec.2011.12.015.