Novel nickel-functionalized glycoboehmite materials for iodide and arsenate capture
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 Ni<sup>2+</sup> adsorption from aqueous solutions. The adsorption capacity of GB for Ni<sup>2+</sup> was found to be 2 to 5 times greater than that for Mg<sup>2+</sup> or Ca<sup>2+</sup>, 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 (K<sub>D</sub>) 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.
Authors
- Jessica Nicole Kruichak (ORCID: https://orcid.org/0009-0009-7496-4113)
- Mark A. Rodriguez (ORCID: https://orcid.org/0000-0002-6940-5044)
- Philippe F. Weck (ORCID: https://orcid.org/0000-0002-7610-2893)
- Edward Matteo (ORCID: https://orcid.org/0000-0003-0585-2096)
- Nelson S. Bell (ORCID: https://orcid.org/0000-0001-7077-996X)
- Jeffery A. Greathouse (ORCID: https://orcid.org/0000-0002-4247-3362)
- Samantha G. Rosenberg (ORCID: https://orcid.org/0000-0001-5033-5675)
- Mila Nhu Lam (ORCID: https://orcid.org/0000-0001-5161-6604)
- Benjamin Juba
- Yifeng Wang (ORCID: https://orcid.org/0000-0002-8812-2357)
Institutions
- Sandia National Laboratories California (US)
- Sandia National Laboratories (US)
Publication Details
- Journal
- Scientific Reports
- Published
- 2025-11-13
- DOI
- https://doi.org/10.1038/s41598-025-23429-6
- Primary Topic
- Adsorption and biosorption for pollutant removal
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- U.S. Department of Energy
- Office of Nuclear Energy
- National Nuclear Security Administration
- Sandia National Laboratories