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. 2021 Jun 3;22(11):6053. doi: 10.3390/ijms22116053

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Figure A2 — (a) N $_{2}$ adsorption/desorption isotherms and (b) XRD curves of SO $_{3}$ H-UiO-66(Zr) [24 h] and SO $_{3}$ H-UiO-66(Zr) [48 h] powder.