Adsorption properties of flouroquinolone type antibiotic ciprofloxacin into 2:1 dioctahedral clay structure: Box-Behnken experimental design

Gulen, Buket; Demirçivi, Pelin

doi:10.1016/j.molstruc.2019.127659

Cited by 65 publications

(17 citation statements)

References 32 publications

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“…Similar results were determined by Gulen and Demircivi [45] who determined values of 0.9224 and 0.8227 for R 2 and R 2 Adj coefficients, respectively. So, the authors concluded that these values indicated good fitness and high significance for the statistical model.…”

Section: Optimization and Modeling By Response Surfacesupporting

confidence: 89%

Equilibrium Study, Modeling and Optimization of Model Drug Adsorption Process by Sunflower Seed Shells

et al. 2020

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The adsorption capacity of the medication methylthioninium chloride (MC) from aqueous solution onto sunflower seed shells (SSS), a low cost and abundant alternative adsorbent, was investigated in a batch system. The surface properties of the adsorbent were characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), specific surface area (by using the Brunauer–Emmett–Teller equation), the liquid displacement method and pHPZC. The ability of SSS to remove the medication was assessed through kinetic, thermodynamic and equilibrium investigations. The adsorption efficiency of the SSS adsorbent for the removal of MC was evaluated considering the effects of its concentration, temperature, adsorption contact time, and the pH of the medium. The results obtained from the kinetic and isotherm studies show that the adsorption of the MC on SSS follows pseudo-second-order kinetics (R² > 0.99) and the Temkin isotherm model (R² = 0.97), respectively. The thermodynamic study showed that the adsorption was endothermic and spontaneous, according to its physisorption mechanism. The mathematical modeling of this process was carried out by using the surface response methodology of Box–Behenken. It was possible to deduce a statistically reliable regression equation that related the adsorption yield to the chosen operating parameters, that is, the initial MC concentration, the adsorbent dosage and the pH. Analysis of the variance indicated that the most influential parameters were the SSS dosage, the pH and their interaction and showed the optimal values for ensuring the best adsorption capacity of 95.58%.

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Section: Optimization and Modeling By Response Surfacesupporting

confidence: 89%

Equilibrium Study, Modeling and Optimization of Model Drug Adsorption Process by Sunflower Seed Shells

et al. 2020

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“…As depicted in Fig S3(b), using an adsorbent dose of 0.25g L -1 at pH 7.5, 30 mg L -1 initial CIP concentration, and 46.25 min contact time resulted in 96.02 % CIP removal, whereas using an adsorbent dose of 1.0 g L -1 at similar adsorption conditions almost completely removed CIP from the solution. A similar adsorption trend was observed by (Gulen and Demircivi, 2020) in the adsorption of CIP from water using a 2: 1 dioctahedral clay structure with the increase of CIP adsorption from 1.8% (0.034 g L -1 ) to 99.2% (2 g L -1 ).…”

Section: Effect Of Adsorbent Dosesupporting

confidence: 83%

Enhanced ciprofloxacin removal from aqueous solution using a chemically modified biochar derived from bamboo sawdust: Adsorption process optimization with response surface methodology

Wakejo,

Meshasha,

Kang

et al. 2022

Preprint

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Contamination of water by ciprofloxacin has become a significant concern due to its adverse health effects and growing evidence of antimicrobial-resistant genes evolution. To this end, a chemically modified bamboo biochar was prepared from bamboo sawdust to effectively remove ciprofloxacin (CIP) from an aqueous solution. Under similar adsorption conditions, the modified bamboo biochar (MBC) has an excellent CIP removal efficiency (96%) compared to unmodified bamboo biochar (UBC) efficiency (45%). Thus, MBC was used in batch adsorption experiments and the process was optimized with the central composite design (CCD) framework of response surface methodology (RSM). Sorption process parameters such as initial CIP concentration, pH, adsorbent dose, and contact time were studied and found to have a significant effect on CIP removal. The optimal CIP removal (96%) was obtained at MBC dose (0.5 g L-1), CIP initial concentration (20 mg L-1), pH (7.5), and contact time (46 min). The adsorption kinetic data were well described by the pseudo-second-order model (R2 = 0.999), and both Langmuir (R2 = 0.994) and Freundlich (R2 = 0.972) models gave the best fit in CIP adsorption isotherm analysis. The maximum monolayer adsorption capacity of the MBC was 78.43 mg g-1 based on the Langmuir isotherm model. These results suggest that CIP adsorption was mainly controlled by chemisorption. Moreover, the CIP adsorption process was endothermic and spontaneous. Overall, MBC is a low-cost, efficient, and recyclable adsorbent for eliminating emerging contaminants such as ciprofloxacin from an aqueous solution.

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“…Activated carbon presents a great disadvantage since clay minerals, such as kaolinite and montmorillonite, are much more economical, thus environmental remediation via activated carbon is greatly limited. Based on this, a series of studies have shown that these minerals have a high affinity for emerging antibiotic-type contaminants, such as tetracyclines [95][96][97], ciprofloxacin [89,[98][99][100], and sulfonamide [101], among others. Maged et al (2020) reported the removal of tetracyclines through the use of the thermal activation of bentonite because it has better properties than does natural bentonite; it was determined that the adsorption of the monolayer measured by the Langmuir model was 156.7 and 388.1 mg g -1 for natural bentonite and heatactivated bentonite, respectively [92].…”

Section: Claysmentioning

confidence: 99%

Removal of Antibiotic Emerging Pollutants: An Overview

Palacio

Aranda

Rivas

2022

J. Chil. Chem. Soc.

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In recent decades the presence of pollutants has grown considerably around the world, along with the scarcity of fresh water. One of the environmental problems that has intensified lately is the presence of antibiotic resistant strains and the appearance of resistant genes due to the misuse and high worldwide consumption of this type of pharmaceutical products. Therefore, the number of investigations has been intensified to address these great problems that can affect public health and cause great economic losses around the world. For this reason, in this review, different antibiotics removal techniques in water have been compiled and analyzed critically.

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Adsorption properties of flouroquinolone type antibiotic ciprofloxacin into 2:1 dioctahedral clay structure: Box-Behnken experimental design

Cited by 65 publications

References 32 publications

Equilibrium Study, Modeling and Optimization of Model Drug Adsorption Process by Sunflower Seed Shells

Equilibrium Study, Modeling and Optimization of Model Drug Adsorption Process by Sunflower Seed Shells

Enhanced ciprofloxacin removal from aqueous solution using a chemically modified biochar derived from bamboo sawdust: Adsorption process optimization with response surface methodology

Removal of Antibiotic Emerging Pollutants: An Overview

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