Lanthanide Organic Framework as a Regenerable Luminescent Probe for Fe3+

A unique three-dimensional Tb-BTB framework (1) with two types of one-dimensional channels was obtained and structurally characterized, exhibiting high thermal stability. Luminescent investigations reveal that 1 can detect Fe3+ with relatively high sensitivity and selectivity. Importantly, 1 as the luminescent probe of Fe3+ can be simply and quickly regenerated, which represents a rare example in reported luminescent sensors of Fe3+.