Highly Water-Stable Dye@Ln-MOFs for Sensitive and Selective Detection toward Antibiotics in Water

• DOI: 10.1021/acsami.9b05815
• Publication Date: 2019-05-30T16:16:58Z
• Authors: Mingke Yu; Ying Xie; Xinyu Wang; Yuxin Li; Guangming Li
• Keywords: X-Ray Diffraction; Ciprofloxacin; Reproducibility of Results; Water; 02 engineering and technology; Quinolones; 0210 nano-technology; Anti-Bacterial Agents; Norfloxacin

The host-guest composite, RhB@Tb-dcpcpt, is synthesized by trapping rhodamine B (RhB) into the channels of [Me2NH2][Tb3(dcpcpt)3(HCOO)]·DMF·15H2O (Tb-dcpcpt, DMF = N,N'-dimethylformamide) via an ion-exchange process. photophysical property RhB@Tb-dcpcpt exhibits stable columinescence RhB and Tb3+ ions in whole excitation range 300-390 nm, realizing excitation-wavelength-independent yellow light emission. Powder X-ray diffraction photoluminescence analysis illustrate outstanding stabilities on structural properties water medium. Subsequently, a bifunctional sensing process toward antibiotics designed terms luminescent intensity color. As result, could realize sensitive selective detection nitrofuran (nitrofurazone nitrofurantoin) quenching quinolone (ciprofloxacin norfloxacin) color-changing Systematic mechanism reveals that photoinduced electron transfer inner filter effect contribute to realization