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Updated: Jan 11, 2026
An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
Novel nickel-functionalized glycoboehmite materials for iodide and arsenate capture
Jessica N Kruichak1, Nelson S Bell1, Jeffery A Greathouse1
1Sandia National Laboratories, P. O. Box 5800, Albuquerque, NM, 87185, USA.
Abstract:
Selective adsorption of anions from aqueous solutions is essential to many industrial and remediation applications. A novel anion sorbent was developed using hybrid glycoboehmite (GB) synthesized from 1,4-butanediol and potassium hydroxide mineralizer. GB materials were further functionalized through Ni2+ adsorption from aqueous solutions. The adsorption capacity of GB for Ni2+ was found to be 2 to 5 times greater than that for Mg2+ or Ca2+, and 12 times higher than that of simple boehmite normalized to the surface area. Relative to GB, nickel-functionalized GB (Ni-GB) exhibits favorable adsorption properties for arsenate and iodide with much improved partitioning coefficient values (KD) of ~ 6400 and 43 mL/g respectively. Experimental characterization along with classical and ab initio molecular dynamics simulations offers insight into the ion adsorption mechanism.
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