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Biphenyl-bridged wrinkled mesoporous silica nanoparticles for radioactive iodine capture

Published online by Cambridge University Press:  11 February 2019

Alexander T. Brown Open the ORCID record for Alexander T. Brown [Opens in a new window] ,
Jason Lin ,
Milana C. Thomas ,
Yves J. Chabal  and
Kenneth J. Balkus Jr
Alexander T. Brown
Affiliation:
Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd, Richardson, TX75080, USA
Jason Lin
Affiliation:
Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd, Richardson, TX75080, USA
Milana C. Thomas
Affiliation:
Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd, Richardson, TX75080, USA
Yves J. Chabal
Affiliation:
Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd, Richardson, TX75080, USA
Kenneth J. Balkus Jr*
Affiliation:
Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Rd, Richardson, TX75080, USA
*
*(Email: [email protected])
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Abstract

The capture of volatile radioactive iodine-129 is an important process for nuclear fission. Biphenyl-bridged wrinkled mesoporous silica shows similar performance for iodine sequestration to commercial Ag-mordenite and avoids the use of expensive silver. The biphenyl-wrinkled mesoporous silica nanoparticles function as a scaffold for biphenyl groups and also as a fluorescent indicator for the loading of iodine. The nanoparticles have a surface area of 973 m2/g and the biphenyl molecules form an electron charge-transfer complex with iodine. Iodine was loaded into the biphenyl-bridged wrinkled mesoporous silica (BWMS) at 19 ± 0.2 % loading by mass.

Keywords

nanostructureporosityabsorbent
Type
Articles
Information
MRS Advances , Volume 4 , Issue 7: Nanomaterials , 2019 , pp. 435 - 439
Copyright
Copyright © Materials Research Society 2019 

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References

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