TONs remaining in the system) was achieved by the end of the 3-day catalyst recycling experiment. Notably, for this longer experimental run, some precipitation of TBADT on the membrane surface was detected during disassembly. The presence of fouling on the membrane surface explains the observed membrane flux decrease. Nevertheless, the deposited TBADT on the membrane surface could be easily washed away with pure acetonitrile. Therefore, to address the issue of catalyst deposition on the membrane surface, periodical (back)washing of the membrane with pure solvent could be implemented (e.g., 10