Crossed mixture‐process design for optimization of simultaneous adsorption of Tartrazine and Indigo carmine dyes by cobalt hydroxide nanosorbent

Bagtash, Maryam; Zolgharnein, Javad

doi:10.1002/cem.3039

Cited by 13 publications

(1 citation statement)

References 39 publications

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“…In some cases, more than a single pharmaceutical compound is present in an aqueous sample, making it necessary to optimize the adsorption process to promote the removal of all compounds present in the sample [27]. Particularly, there are no studies reported until now for the combination of sulfonamides and nitroimidazoles.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Binary Adsorption of Metronidazole and Sulfamethoxazole in Aqueous Solution Supported with DFT Calculations

et al. 2023

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Sulfamethoxazole [SMX] and metronidazole [MNZ] are emergent pollutants commonly found in surface water and wastewater, which can cause public health and environmental issues even at trace levels. An efficient alternative for their removal is the application of adsorption technology. The present work evaluated single and binary adsorption processes using granular activated carbon (CAG F400) for SMX and MNZ in an aqueous solution. The binary adsorption process was studied using a Box–Behnken experimental design (RSD), and the results were statistically tested using an analysis of variance. Density functional theory (DFT) modeling was employed to characterize the interactions between the antibiotics and the CAG F400 surface. For the individual adsorption process, adsorption capacities (qe) of 1.61 mmol g−1 for SMX and 1.10 mmol g−1 for MNZ were obtained. The adsorption isotherm model that best fit experimental data was the Radke–Prausnitz isotherm model. The adsorption mechanism occurs through electrostatic and π-π dispersive interactions. For the binary adsorption process, the total binary adsorption capacity achieved was 1.13 mmol g−1, evidencing competitive adsorption. The significant factors that determine the removal of SMX and MNZ from a binary solution were the solution pH and the initial concentration of antibiotics. From DFT studies, it was found that SMX adsorption on CAG F400 was favored with adsorption energy (Eads) of −10.36 kcal mol−1. Finally, the binary adsorption results corroborated that the adsorption process was favorable for both molecules.

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Section: Introductionmentioning

confidence: 99%

Optimization of Binary Adsorption of Metronidazole and Sulfamethoxazole in Aqueous Solution Supported with DFT Calculations

et al. 2023

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Simultaneous removal of acidic dyes on binary mixture from aqueous solutions by magnetic basic resin

Karanfil,

Coşkun,

Delibaş

2024

J of Applied Polymer Sci

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This study, magnetic basic resin (MBR) was synthesized by radical polymerization and modification. Its functional groups, surface morphology, elemental composition, and magnetic value were determined by ATR‐FTIR FE‐ESEM, EDX, and VSM techniques. Subsequently, the usability of MBR as an adsorbent in the simultaneous adsorption of Tartrazine (Tart) and Reactive Blue‐4 (RB4) dye binary mixtures were examined. Maximum adsorption for both dyes, (170 mg/g for Tart and 184 mg/g for RB4), was observed under acidic conditions at a pH range of 1.5–2. It was determined that the adsorption of both dyes onto MBR occurred in a monolayer, and the saturation time was 90 min for Tart and 60 min for RB4. The adsorption of both dyes fitted the pseudo‐second‐order kinetic model. It was also concluded that intra‐particle diffusion was effective. Based on the thermodynamic parameters, it was concluded that the adsorption proceeded spontaneously and endothermically, additionally, the calculated E values led to the conclusion that electrostatic interactions dominated the adsorption of Tart and RB4. The MBR exhibited a notable affinity for Tart and RB4, even within a dense matrix containing both anions and cations. Furthermore, it maintained this high removal affinity across four consecutive uses, involving adsorption and desorption processes.

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Indigo Carmine Dye Adsorptive Removal by Polyethylene Glycol-Modified Hydroxyapatite Nanoparticles as an Efficient Adsorbent

Zolgharnein

Rajabalipour

Farahani

2023

Water Air Soil Pollut

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Crossed mixture‐process design for optimization of simultaneous adsorption of Tartrazine and Indigo carmine dyes by cobalt hydroxide nanosorbent

Cited by 13 publications

References 39 publications

Optimization of Binary Adsorption of Metronidazole and Sulfamethoxazole in Aqueous Solution Supported with DFT Calculations

Optimization of Binary Adsorption of Metronidazole and Sulfamethoxazole in Aqueous Solution Supported with DFT Calculations

Simultaneous removal of acidic dyes on binary mixture from aqueous solutions by magnetic basic resin

Indigo Carmine Dye Adsorptive Removal by Polyethylene Glycol-Modified Hydroxyapatite Nanoparticles as an Efficient Adsorbent

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