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Type: Journal article
Title: Zirconium-based metal-organic framework for removal of perrhenate from water
Author: Banerjee, D.
Xu, W.
Nie, Z.
Johnson, L.
Coghlan, C.
Sushko, M.
Kim, D.
Schweiger, M.
Kruger, A.
Doonan, C.
Thallapally, P.
Citation: Inorganic Chemistry, 2016; 55(17):8241-8243
Publisher: American Chemical Society
Issue Date: 2016
ISSN: 0020-1669
Statement of
Debasis Banerjee, Wenqian Xu, Zimin Nie, Lewis E. V. Johnson, Campbell Coghlan, Maria L. Sushko, Dongsang Kim, Michael J. Schweiger, Albert A. Kruger, Christian J. Doonan and Praveen K. Thallapally
Abstract: The efficient removal of pertechnetate (TcO4(-)) anions from liquid waste or melter off-gas solution for an alternative treatment is one of the promising options to manage (99)Tc in legacy nuclear waste. Safe immobilization of (99)Tc is of major importance because of its long half-life (t1/2 = 2.13 × 10(5) yrs) and environmental mobility. Different types of inorganic and solid-state ion-exchange materials have been shown to absorb TcO4(-) anions from water. However, both high capacity and selectivity have yet to be achieved in a single material. Herein, we show that a protonated version of an ultrastable zirconium-based metal-organic framework can adsorb perrhenate (ReO4(-)) anions, a nonradioactive surrogate for TcO4(-), from water even in the presence of other common anions. Synchrotron-based powder X-ray diffraction and molecular simulations were used to identify the position of the adsorbed ReO4(-) (surrogate for TcO4(-)) molecule within the framework.
Rights: © 2016, American Chemical Society
RMID: 0030052185
DOI: 10.1021/acs.inorgchem.6b01004
Appears in Collections:Chemical Engineering publications

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