The original article contained several errors and inconsistencies which were spotted by a reader. The article and its Supplementary Information have now been amended to correct these errors and to improve the reproducibility of the work. In Fig. 1a and the associated text, “*Eox” should have read “excited-state oxidation potential”. The redox potentials for Cz, CBZ4, CBZ5, KQGZ anions were incorrect due to insufficient deprotonation during the original photophysical measurements. These measurements have been repeated, and the correct redox potentials are as follows: Cz anion (−2.83 V vs. SCE), CBZ4 anion (−2.54 V vs. SCE), CBZ5 anion (−2.69 V vs. SCE), and KQGZ anion (−2.45 V vs. SCE). Statements referring to CBZ4 and its anion as being super-photoreductants in the “Defluorination of PTFE” section have been removed to reflect this change. In Fig. 2a, “Cs 2 CO 3 (2.0 equiv.)” has been removed for consistency with the figure legend. The text and figure have now been amended in the HTML and PDF versions of the article. Updates to the Supporting Information include corrected characterizations of the photocatalysts, as well as an elaboration of the key factors essential for reproducibility of the reaction.