. 2020 Jul 17;10(7):155. doi: 10.3390/membranes10070155
© 2020 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 (http://creativecommons.org/licenses/by/4.0/).
Figure 2.
XRD patterns of ZIF−8, m–ZIF−8 and Fe3O4.