Synthesis of Gum Arabic Magnetic Nanoparticles for Adsorptive Removal of Ciprofloxacin: Equilibrium, Kinetic, Thermodynamics Studies, and Optimization by Response Surface Methodology

Abstract

Given the increasing risks that antibiotic abuse poses to microecology and human health, it is imperative to develop incredibly powerful adsorbents. This study investigated the use of environmentally sustainable polymeric nanocomposite based on gum arabic (GA) and magnetic nanoparticles (MNPs) synthesized via co-precipitation method to form gum arabic magnetitic nanoparticles (GA-MNPs) as an efficient adsorbent for ciprofloxacin (CIP) removal from aqueous solution. The physicochemical properties and morphology of the synthesized GA-MNPs were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and Energy Dispersive X-Ray Analysis (EDX). The experiment was designed by response surface methodology (RSM) and the Central Composite Design (CCD) was utilized to optimize the operating variables: contact time (0–120 min), pH (3–10), adsorbent dosage (0.10–0.40 g/L), and concentration of adsorbate (5–100 mg/L). Results showed that 96.30% was the maximum percentage of CIP removed. The adsorption effect of the CIP molecule on the surface of the GA-MNPs was investigated using regression analysis and analysis of variance. Furthermore, Freundlich Isotherm and Pseudo Second order kinetic equations have the highest consistency with experimental investigations suggesting double-layer adsorption. This implies that chemisorption was the mechanism involved. In addition, the calculated thermodynamic parameters were postulating an exothermic and spontaneous method in nature. Owing to its adsorption selectivity and recyclability, GA-MNPs could be classified as an environmentally friendly, less expensive, and highly efficient promising adsorbent for remediation of CIP from aqueous solution.

Nano round polycrystalline adsorbent of chicken bones origin for Congo red dye adsorption

“…The three-parameters isotherm models of R–P and Sips are represented as 26 , 27 : where K R, in L mg −1 stands for the R–P constant; g denotes the R–P exponent that vary between 0 and 1. Langmuir isotherm equation is predicted if β is 1 and when β equals 0, the R-P reduces to Freundlich isotherm equation 24 , 25 .…”

“…The spreading of the molecules of the solutes in solution at equilibrium can be deploy to determine constant of equilibrium, K d , expressed as 19 , 27 , 28 : …”

Harvesting of Atmospheric Water Using Polymer‐Based Hybrid Hydrogels

“…These tribes mainly relied on subsistence farming and had few other money-saving methods [47]. Each advancing civilization created its unique strategy for gathering or diverting runoff for advantageous applications, even as many diverse strategies were developed essentially evenly as WH spread throughout many of these places [48,49]. The Middle East was part of the earliest region in the universe to start collecting water for useful activities like domestics and agriculture.…”

Electrochemical sensor based on gum Arabic nanoparticles for rapid and in-situ detection of different heavy metals in real samples

“…Owing to its biological, chemical and physical characteristics, gum Arabic (GA) has recently received much attention as a suitable biopolymer for the design of green nanoparticles [ [31] , [32] , [33] ]. The mentioned polymers are reported for their branched polysaccharide structure comprising various sugars, such as arabinose, rhamnose, galactose, glucuronic acid, etc [ [31] , [32] , [33] ]. The charged group's facilities then its adsorption onto the surface of a nanoparticle.…”