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

This study synthesizes five hybrid complexes based on silicotungstic acid modified by diverse MnL [L = Salen(L 1 ), 5-Br-Salen(L 2 ), 5-Cl-Salen(L 3 ), 3-Me-Salen(L 4 ) and di- t Bu-Salen(L 5 )] for the degradation of Rhodamine B under UV irradiation.