. 2021 Jun 1;26(11):3323. doi: 10.3390/molecules26113323
© 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/).
Scheme 1.
Modes of photocatalytic substitution.