Mechanistic study on the photocatalytic degradation of rhodamine B via Mn–Schiff-base-modified Keggin-type polyoxometalate composite materials

is playing a pivotal role. A possible mechanism of RhB photodegradation in the presence of compound 2 is proposed based on free radical trapping experiments and the energy bands. Future work could focus on fine-tuning the molecular architecture through strategic modification of the organic ligands and precise control of the metal-to-POM ratio, potentially leading to optimized electronic structures and enhanced charge transfer kinetics for superior photocatalytic performance in environmental applications.