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Functionalized graphene oxide-zinc oxide hybrid material and its deployment for adsorptive removal of levofloxacin from aqueous media

Authors :
Nimra Ismail
Muhammad Imran
Muhammad Ramzan
Ayesha Anwar
Ibrahim A. Alsafari
Muhammad Asgher
Hafiz M.N. Iqbal
Source :
Environmental research. 217
Publication Year :
2022

Abstract

This work reports on the synthesis of aspartic acid-functionalized graphene oxide-zinc oxide, as a functional porous material, and its potential to mitigate levofloxacin (LFXN). The adsorbent was characterized by various techniques, including ultraviolet-visible (UV-Vis), Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (PXRD), and scanning electron microscopy (SEM). The average crystallite size of the prepared composite was about 17.30 nm. Batch adsorption studies were carried out to elucidate the adsorption process for LFXN. Different parameters, including contact time, LFXN initial concentration, adsorbent concentration, pH, temperature, and ionic strength were studied. The mechanism and kinetics were studied by fitting the data to Freundlich and Langmuir isotherms, pseudo-first-order and pseudo-second-order kinetic models, respectively. The isotherm data was better fitted to Langmuir isotherm (R

Details

ISSN :
10960953
Volume :
217
Database :
OpenAIRE
Journal :
Environmental research
Accession number :
edsair.doi.dedup.....6a179b80b9b30d8d6539be229ff219d3