Preparation of Zn/Zr-MOFs by microwave-assisted ball milling and adsorption of lomefloxacin hydrochloride and levofloxacin hydrochloride in wastewater

Fuhua Wei; Jie Gong; Qinhui Ren; Xiang Yu; Yan Wang; Hongliang Chen; Zhao Liang

doi:10.1016/j.envres.2024.118941

Preparation of Zn/Zr-MOFs by microwave-assisted ball milling and adsorption of lomefloxacin hydrochloride and levofloxacin hydrochloride in wastewater

Environ Res. 2024 Apr 20;252(Pt 3):118941. doi: 10.1016/j.envres.2024.118941. Online ahead of print.

Authors

Fuhua Wei¹, Jie Gong², Qinhui Ren², Xiang Yu², Yan Wang², Hongliang Chen², Zhao Liang³

Affiliations

¹ College of Chemistry and Chemical Engineering, Anshun University, Anshun, 561000, Guizhou, China. Electronic address: wfh.1981@163.com.
² College of Chemistry and Chemical Engineering, Anshun University, Anshun, 561000, Guizhou, China.
³ Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo City, 315211, China; State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China. Electronic address: walleliang@hnu.edu.cn.

PMID: 38649015
DOI: 10.1016/j.envres.2024.118941

Abstract

The Zn/Zr-MOFs were synthesized via microwave-assisted ball milling and subsequently characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The thermal stability of the Zn/Zr-MOFs was evaluated through thermogravimetry (TGA). The results demonstrated the exceptional adsorption properties of the Zn/Zr-MOFs towards Lomefloxacin hydrochloride and Levofloxacin hydrochloride. At a concentration of 30 ppm for Lomefloxacin hydrochloride, the addition of 30 mg of Zn/Zr-MOFs material resulted in an adsorption capacity of 179.2 mg•g-1. Similarly, at a concentration of 40 ppm for Levofloxacin hydrochloride, the addition of 30 mg Zn/Zr-MOFs material led to an adsorption capacity of 187.1 mg•g-1. Kinetic analysis revealed that the experimental data aligned well with a pseudo-second order kinetic model. Overall, these findings highlight the significant potential application of Zn/Zr-MOF materials in wastewater treatment.

Keywords: Adsorption; Antibiotic; MOFs; Microwave-assisted ball milling.