A top-down methodology for ultrafast tuning of nanosized zeolitesElectronic supplementary information (ESI) available: Experimental details and additional figures. See DOI: 10.1039/c5cc04542h

We herein present a top-down methodology to prepare nanosized zeolites with tunable size by combining post-synthesis milling and fast recrystallization of several minutes (10 min for SSZ-13 and 5 min for AlPO4-5). A continuous-flow recrystallization process is demonstrated to further enhance the overall product efficiency. A top-down methodology to prepare nanosized zeolites with tunable size by combining post-synthesis milling and fast recrystallization of several minutes is developed.