A porous g-C 3 N 4 /NH 2 -MIL-53(Fe) (CNMIL) aerogel with excellent recyclability and photocatalytic performance was successfully synthesized via facile electrostatic self-assembly. The coupling of NH 2 -MIL-53(Fe) enhanced the visible-light absorption regions of g-C 3 N 4 and increases its specific surface areas. The synthesized aerogel possessed outstanding recyclability and could be easily separated from the aqueous phase. In addition, the CNMIL aerogel exhibited superior degradation efficiencies for rhodamine B (RhB) and norfloxacin (NFL) under visible-light irradiation, which were 2.6 and 1.3 times higher than pure g-C 3 N 4 , respectively. The increased photocatalytic performance of the CNMIL aerogel could be attributed to the synergistic electron transfer interface between g-C 3 N 4 and NH 2 -MIL-53(Fe), which achieved effective electron transfer, thus enhancing the photocatalytic activity. The study achieved the modulation of the g-C 3 N 4 by Fe-based MOF, which suggested the potential of metal-free polymer and metal-organic framework composites for efficient photocatalysis. [Display omitted] • The g-C 3 N 4 /NH 2 -MIL-53(Fe) aerogel was synthesized via a facile electrostatic self-assembly method. • The introduced of NH 2 -MIL-53(Fe) increases visible-light absorption regions and the specific surface area of g-C 3 N 4. • The aerogel achieves excellent recoverability and photocatalytic performance simultaneously. [ABSTRACT FROM AUTHOR]