The application of atomic layer deposition in the production of sorbents for ⁹⁹Mo/^99mTc generator

The application of atomic layer deposition in the production of sorbents for ⁹⁹Mo/^99mTc generator

Moret, J. L.T.M. (External organisation)
Alkemade, J. (TU Delft ChemE/Product and Process Engineering)
Upcraft, T. M. (External organisation)
Paulssen, E. (TU Delft RST/Applied Radiation & Isotopes; FH Aachen University of Applied Sciences)
Wolterbeek, H.T. (TU Delft RST/Applied Radiation & Isotopes)
van Ommen, J.R. (TU Delft ChemE/Product and Process Engineering)
Denkova, A.G. (TU Delft RST/Applied Radiation & Isotopes)

2020

New production routes for ⁹⁹Mo are steadily gaining importance. However, the obtained specific activity is much lower than currently produced by the fission of U-235. To be able to supply hospitals with ⁹⁹Mo/^99mTc generators with the desired activity, the adsorption capacity of the column material should be increased. In this paper we have investigated whether the gas phase coating technique Atomic Layer Deposition (ALD), which can deposit ultra-thin layers on high surface area materials, can be used to attain materials with high adsorption capacity for ⁹⁹Mo. For this purpose, ALD was applied on a silica-core sorbent material to coat it with a thin layer of alumina. This sorbent material shows to have a maximum adsorption capacity of 120 mg/g and has a^99mTc elution efficiency of 55 ± 2% based on 3 executive elutions.

Mo/mTc
Sorbent materials

http://resolver.tudelft.nl/uuid:4183bb63-8427-4077-8466-da881a65a7f2

https://doi.org/10.1016/j.apradiso.2020.109266

0969-8043

Applied Radiation and Isotopes, 164

Institutional Repository

journal article

© 2020 J. L.T.M. Moret, J. Alkemade, T. M. Upcraft, E. Paulssen, H.T. Wolterbeek, J.R. van Ommen, A.G. Denkova