Molecular engineering of biomimetic donor-acceptor conjugated microporous polymers with full-spectrum response and an unusual electronic shuttle for enhanced uranium(VI) photoreduction

•Three biomimetic CMPs photocatalyst are applied to photoreduction of U(VI).•Quinone block is photocatalytic active sites for the photoreduction.•ECUT-TQ can not only broaden the absorption spectrum, but boost e-/h+ separation.•The ECUT-TQ achieves an impressively photoreaction rate constant of 0.057 min−1.•The e- and •O2– radicals are main active species in the photocatalytic process.