Removal of Heavy Metals from Aqueous Systems with Thiol Functionalized Superparamagnetic Nanoparticles

Journal Article · Sat Jun 09 00:00:00 EDT 2007 · Environmental Science & Technology, 41(14):p.5114-5119

DOI:https://doi.org/10.1021/es0705238· OSTI ID:910268

Yantasee, Wassana; Warner, Cynthia L; Sangvanich, Thanapon; Addleman, Raymond S; Carter, Timothy G; Wiacek, Robert J; Fryxell, Glen E; Timchalk, Chuck; Warner, Marvin G

We have shown that superparamagnetic iron oxide (Fe3O4) nanoparticles with a surface functionalization of dimercaptosuccinic acid is an effective, magnetic, sorbent material for toxic metals such as Hg, Ag, Pb, Cd and other soft cations. The chemical affinity, stability, capacity and kinetics of the functionalized nanoparticles has been explored and compared to conventional resin based sorbents and nanoporous silica materials with similar surface chemistries.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 910268
• Report Number(s): PNNL-SA-53961; 24801; 400412000; TRN: US200723%%392
• Journal Information: Environmental Science & Technology, 41(14):p.5114-5119, Vol. 41, Issue 14
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
HEAVY METALS
SORPTION
IRON OXIDES
SORPTIVE PROPERTIES
THIOLS
NANOSTRUCTURES
AQUEOUS SOLUTIONS
PARAMAGNETISM
superparamagnetic
iron oxide
nanoparticles
heavy metal
DMSA
sorbent
thiol
SAMMS
Environmental Molecular Sciences Laboratory