Organofunctional sol-gel materials for toxic metal separation

Hee Jung Im, Terry L. Yost, Yihui Yang, J. Morris Bramlett, Xianghua Yu, Bryan C. Fagan, Leonardo R. Allain, Tianniu Chen, Craig E. Barnes, Sheng Dai, Lee E. Roecker, Michael J. Sepaniak, Zi Ling Xue

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

Inorganic-organic silica sol-gels grafted or encapsulated with organic ligands were prepared and found to selectively and reversibly remove target metal ions such as Cu 2+, Cd 2+, and Sr 2+. These organofunctional sol-gel materials were hydrophilic and showed fast kinetics of metal uptake. The sol-gels were easily regenerated and used in multicycle metal removal. In our search for new ligands for metal removal, we found that the reactions of thioacetal ligands with Hg 2+ gave Hg(SCH 2COOH) 2.

Original languageEnglish
Title of host publicationNuclear Waste Management Acconplishments of the Environmental Management Science Program
EditorsPaul Wang, Tiffany Zachry
Pages223-237
Number of pages15
StatePublished - 2006

Publication series

NameACS Symposium Series
Volume943
ISSN (Print)0097-6156

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