An efficient removal mechanism for different hydrophilic antibiotics from aquatic environments by Cu-Al-Fe-Cr quasicrystals

Lei Zhang; Tian Ai; Xiaoxi Tian; Shujuan Dai

doi:10.1039/d1ra08095d

An efficient removal mechanism for different hydrophilic antibiotics from aquatic environments by Cu-Al-Fe-Cr quasicrystals

RSC Adv. 2022 Mar 30;12(16):9995-10004. doi: 10.1039/d1ra08095d. eCollection 2022 Mar 25.

Authors

Lei Zhang¹, Tian Ai¹, Xiaoxi Tian¹, Shujuan Dai²

Affiliations

¹ School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 PR China zl3303064@163.com asatsky@163.com astxx@163.com.
² School of Mining Engineering, University of Science and Technology Liaoning Anshan PR China shujuandai@163.com.

Abstract

The work studied the adsorption properties and mechanism of Cu-Al-Fe-Cr quasicrystals (QCs) for the adsorption of ibuprofen (IBU), tedizolid phosphate (TZD), and sulbactam sodium (SAM) for the first time. The experimental results showed that quasicrystals were good adsorbents with great potential. The structure, surface morphology, and elemental composition of QCs were investigated by XPS, XRD, SEM, EDX, particle size, DSC-TG, and FTIR. The adsorption pH, kinetics, thermodynamics, and isotherms of IBU, TZD, and SAM in QCs were systematically studied. QCs had good adsorption performance for antibiotics, and the adsorption capacities of IBU, TZD, and SAM were 46.964, 49.206, and 35.292 mg g^-1 at the concentration of 25 mg L^-1, respectively. The surface charge and hydrophobicity of QCs were affected by changing pH, thereby affecting the adsorption performance of QCs. The main driving forces of adsorption included electrostatic force and hydrophobicity.