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a) The reaction mechanism for CTF‐HUST synthesis by a Schiff base formation, followed by a Michael addition. Representations of the structures of b) CTF‐HUST‐1, c) CTF‐HUST‐2, d) CTF‐HUST‐3, and e) CTF‐HUST‐4. Here, the circles are filled with different colors representing the presence of two types of pores. Adapted with permission.43 Copyright 2017, Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim.
