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Uribe EC, Mason HE, Shusterman JA, et al. Organic layer formation and sorption of U(vi) on acetamide diethylphosphonate-functionalized mesoporous silica. Dalton Trans. 2017;46(16):5441-5456doi: 10.1039/c7dt00362e.
Uribe, E. C., Mason, H. E., Shusterman, J. A., & Lukens, W. W. (2017). Organic layer formation and sorption of U(vi) on acetamide diethylphosphonate-functionalized mesoporous silica. Dalton transactions (Cambridge, England : 2003), 46(16), 5441-5456. https://doi.org/10.1039/c7dt00362e
Uribe, Eva C, et al. "Organic layer formation and sorption of U(vi) on acetamide diethylphosphonate-functionalized mesoporous silica." Dalton transactions (Cambridge, England : 2003) vol. 46,16 (2017): 5441-5456. doi: https://doi.org/10.1039/c7dt00362e
Uribe EC, Mason HE, Shusterman JA, Lukens WW. Organic layer formation and sorption of U(vi) on acetamide diethylphosphonate-functionalized mesoporous silica. Dalton Trans. 2017 Apr 19;46(16):5441-5456. doi: 10.1039/c7dt00362e. PMID: 28394389.
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Dalton Trans. 2017 Apr 19;46(16):5441-5456. doi: 10.1039/c7dt00362e.

Organic layer formation and sorption of U(vi) on acetamide diethylphosphonate-functionalized mesoporous silica.

Dalton transactions (Cambridge, England : 2003)

Eva C Uribe, Harris E Mason, Jennifer A Shusterman, Wayne W Lukens

Affiliations

  1. Department of Chemistry, University of California, Berkeley, California 94720, USA. [email protected].

PMID: 28394389 DOI: 10.1039/c7dt00362e

Abstract

Acetamide diethylphosphonate (AcPhos)-functionalized silica has been shown to have a high affinity for U(vi) in pH 2-3 nitric acid. Previous work with AcPhos-functionalized silica has focused on actinide and lanthanide extraction under various conditions, but has shown poor reproducibility in the functionalization process. For this work, four AcPhos-functionalized SBA-15 materials were synthesized and evaluated based on their U(vi) sorption capacity and their stability in nitric acid. Materials synthesized using pyridine as a basic catalyst were shown to form a greater fraction of polymeric structures at the silica surface, which correlated with higher structural integrity upon contact with acidic solutions. Single-pulse

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