Simultaneous Adsorption of Ternary Antibiotics (Levofloxacin, Meropenem, and Tetracycline) by SunFlower Husk Coated with Copper Oxide Nanoparticles

Abstract

In this study, a new adsorbent derived from sunflower husk powder and coated in CuO nanoparticles (CSFH) was investigated to evaluate the simultaneous adsorption of Levofloxacin (LEV), Meropenem (MER), and Tetracycline (TEC) from an aqueous solution. Significant improvements in the adsorption capacity of the sunflower husk were identified after the powder particles had been coated in CuO nanoparticles. Kinetic data were correlated using a pseudo-second-order model, and was successful for the three antibiotics. Moreover, high compatibility was identified between the LEV, MER, and TEC, isotherm data, and the Langmuir model, which produced a better fit to suit the isotherm curves. In addition, the spontaneous and exothermic nature of the adsorption process was crucial for transforming the three antibiotics into CSFH. The greatest CSFH adsorption capacity was in MER (131.83 mg/g), followed by TEC (96.95 mg/g), and LEV (62.24 mg/g). These findings thus indicate that CSFH is one of the most effective and efficient adsorbents to use for eliminating wastewater contaminated with antibiotic residue.

Adsorption of Anionic Dyes by Polypyrrole‐Grafted Mesoporous SBA‐15 Composite: Isotherms, Kinetics, Thermodynamics, Interaction Mechanism and Recycling

“…K c can be obtained using the equation k c =q e /C e . The parameters ΔH° and ΔS° were calculated using van't Hoff equation 11 [28–30] $$$\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {{\rm l}{\rm n}{\rm \ }{\rm K}}_{{\rm c}}=-{\rm \ }{{\Delta {\rm H}^\circ{}}\over{{\rm R}{\rm T}}}+{\rm \ }{{\Delta {\rm S}^\circ{}}\over{{\rm R}}}\hfill\cr}}$$$ …”

Enhancing microbial desalination cell performance for water desalination and wastewater treatment: experimental study and modelling of electrical energy production in open and closed‐circuit modes

“…Various fields, including biology, geology, and materials science employ SEM to investigate the microstructure and morphology of materials at high magnifications. The method provides in‐depth insights into the surface topography, crystal structure, and elemental content of materials, rendering it an excellent technique for assessing the behaviour and properties of numerous materials 33‐35 . Each interfacial shape and topological characteristic was evaluated using an SEM with X‐ray spectroscopy (XPS).…”

“…The method provides in-depth insights into the surface topography, crystal structure, and elemental content of materials, rendering it an excellent technique for assessing the behaviour and properties of numerous materials. [33][34][35] Each interfacial shape and topological characteristic was evaluated using an SEM with X-ray spectroscopy (XPS). The produced images adequately portrayed the three-dimensional surface contour.…”

Catalytic Degradation of Ciprofloxacin in Aqueous Solution by Peroxymonosulfate Activated with a Magnetic CuFe2O4@Biochar Composite

“…A variety of methods have been explored to treat antibiotic pollutants such as biotransformation, adsorption, electrocoagulation method [ 6 , 7 ], and advanced oxidation processes (AOPs). Additionally, different types of highly effective AOPs have been widely studied due to their high oxidation ability to various pollutants, such as Fenton processes [ 8 ], UV-photolysis driven processes [ 9 ], ozonation [ 10 ], and sulfate radical-based AOPs (SR-AOPs) [ 11 , 12 , 13 ].…”