Fig. 1. Overview detailing the importance of in-line TBADT recovery.

a Photocatalytic Hydrogen Atom Transfer enables both early- and late-stage functionalization of hydroalkanes and biologically active compounds. b Small-scale versus large-scale synthetic organic chemistry requires different approaches: catalyst lifetime and cost are only relevant on a process chemistry level. c TBADT is a high molecular weight molecule resulting in a large mass fraction and thus high associated cost when discarded. This warrants the need for catalyst recycling. d We disclose a general and efficient approach for decatungstate recycling using in-line nanofiltration.