A dual-emission ratiometric fluorescence probe for highly selective and simultaneous detection of tetracycline and ferric ions in environmental water samples based on a boron-doped carbon quantum dot/CdTe–Eu3+ composite

A dual-emission ratiometric fluorescence probe for the simultaneous detection of tetracycline (TC) and Fe 3+ in aqueous solution was fabricated based on a boron-doped carbon quantum dot (B-CQD)/CdTe–Eu 3+ composite.