Highly efficient photocatalytic degradation of antibiotics in water by copper-based coordination polymer

2026-05-23

PRE

Liang, Jiaqi

Li, Liang

Zhang, Yue

Yin, Haiyang

Wang, Xiuyan

Chang, Limin *

DOI：10.1016/j.molstruc.2026.146265

Original

Original request for help

Save

Abstract

En 中文

This study successfully synthesized a novel Cu(II)-based coordination polymer, namely {[Cu(TDBA)(L)(H2O)]center dot (DMF)2 center dot(H2O)}n (CP)[H2TDBA=2,2 '-thiodibenzoic acid, L = N,N'-bis(3-pyridinecarboxamide)-4,4 '-(3,3 '-dimethylbiphenyl)], through a solvothermal method. The structure of CP was fully characterized. Under simulated visible-light irradiation, CP exhibited exceptional degradation efficiencies of 99.00%, 80.00% and 1.37% toward tetracycline (TC), oxytetracycline (OTC), and ciprofloxacin (CIP), respectively. Notably,after five consecutive photocatalytic recycling experiments, CP maintained its high degradation performance and the structural integrity, demonstrating outstanding stability. Furthermore, the effects of key parameters including initial TC concentration, catalyst dosage, and solution pH on the photocatalytic performance were systematically investigated. Radical scavenger experiments combined with electron spin resonance (ESR) spectroscopy confirmed that 1O2,center dot O2- ,center dot OH, and h+ serve as the predominant active species responsible for the photocatalytic degradation of antibiotics.

Keywords:

Coordination polymer

Photocatalytic degradation

Tetracycline

Mechanism

Highly efficient photocatalytic degradation of antibiotics in water by copper-based coordination polymer

Abstract

Journal

Organization

Cited Papers

Citing Papers