Internal electric field at the Schottky junctions in an MXene–MnCdS heterostructure for complete uranium remediation

The MXene-induced interfacial Schottky barrier creates a built-in electric field that drives spontaneous electron transfer from Mn 0.3 Cd 0.7 S to Ti 3 C 2 T x , achieving 100% U( vi )-to-U( iv ) photoreduction within 30 min through ˙O 2 − -mediated chain reactions.