Sorption of acidic dyes from water by poly(vinyl imidazole) grafted onto poly(styrene) based beads

Bildik, Fatih; Turan, Gulcin Torunoglu; Duran, Hakan; Şişmanoğlu, Tuba; Şenkal, Bahire Filiz

doi:10.5004/dwt.2019.24669

Cited by 5 publications

(2 citation statements)

References 46 publications

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“…Numerous types of dyes and pigments have been discharged into the aquatic environment through wastewater from various industries such as paper and pulp, textile, leather, and printing industries [1]. Wastewater from the textile dyeing operation contains unused dyes (~8% to 20% of the total pollution load) and auxiliary chemicals and significantly contribute to water pollution [2].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive performance of MWCNTs for simultaneous cationic and anionic dyes removal; kinetics, thermodynamics, and isotherm study

et al. 2021

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Disposal of contaminated wastewater causes many serious problems especially when it gets mixed with the ground and seawater. It is, therefore, important to apply any remedial action to eradicate dangerous pollutants from the aqueous effluents and to avoid exposure of this wastewater to aquatic life. The research results discussed herein deal with the removal of Rhodamine B (RhB) and Congo Red (CR) dye from wastewater by using multi-walled carbon nanotubes (MWCNTs) as an adsorbent. Different factors like solid dosage, initial pH and concentration, time, and temperature were studied to understand the behavior and mechanism of adsorption. The maximum adsorption capacity in case of a single component system was found to be 302 mg/g and 300 mg/g for Congo Red and Rhodamine B, respectively. Moreover, the mechanism of adsorption was best described by a pseudo-second-order kinetic model. Thermodynamic parameters showed that adsorption of CR and RhB was exothermic when these were removed from a single dye system. However, the overall process became endothermic for concurrent removal of both dyes from the solution. The research results showed that the MWCNTs could successfully be utilized to remove the dye from the industrial wastewater.

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Section: Introductionmentioning

confidence: 99%

Adsorptive performance of MWCNTs for simultaneous cationic and anionic dyes removal; kinetics, thermodynamics, and isotherm study

et al. 2021

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“…Cr 6+ ion and the organic dye reactive black were successfully adsorbed on the aforementioned gels 23 . Poly(vinyl benzyl chloride‐co‐ethylene glycol dimethacrylate [EGDMA]) (10%) (PVBC) resin grafted with PNVI removed dyes from solution at ppm level 24 . A competitive adsorption study on poly(2‐hydroxyethyl methacrylate‐N‐vinyl imidazole) cryogel and poly(2‐hydroxyethyl methacrylate‐N‐vinyl imidazole)/poly(2‐hydroxyethyl methacrylate) composite cryogel was performed in the removal of Pb 2+ , Cd 2+ , Zn 2+ , and Cu 2+ ions from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Pullulan/poly(N‐vinylimidazole) cryogel: An efficient adsorbent for methyl orange

Hezarkhani

Ustürk

Özbilenler

et al. 2021

J of Applied Polymer Sci

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Pullulan/poly(N‐vinylimidazole) (PNVI) hybrid cryogels were synthesized under free radical polymerization and chemical crosslinking conditions in an alkaline, aqueous solution of pullulan (PUL), N‐vinylimidazole (NVI), ammonium persulfate and epicholorohydrin (ECH) at −18°C. PUL and PNVI cryogels alone were also synthesized under similar conditions. Optimum cryogel formation conditions were determined by considering product yields and gel fractions of the samples. The products were characterized by elemental analysis, FTIR‐ATR spectrometry, Thermal gravimetric analysis, and scanning electron microscopy (SEM) analyses. It has been found that PUL/PNVI hybrid samples bear improved physicochemical properties compared to ECH crosslinked PUL and PNVI samples alone. They act as hydrogels in aqueous medium reaching equilibrium swelling capacity values of the order of 600%. Dried PUL/PNVI cryogels show higher thermal stability than the dried cryogels of the parent polymers and maintain their physical integrity over a prolonged time period. Macroporous morphology was revealed by SEM analysis. Having 54.2 mg/g maximum equilibrium adsorption capacity in 200 ppm methyl orange solution and maintaining 95% of its adsorption capacity at the end of seven consecutive adsorption/desorption cycles, PUL/PNVI cryogel proved to be an efficient and durable dye adsorbent using methyl orange as the model compound in aqueous solution.

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Effective and fast removal of crystal violet dye from aqueous solutions using Rumex acetosella: isotherm, kinetic, thermodynamic studies, and statistical analysis

Erdogan

Işık

Uğraşkan

et al. 2022

Biomass Conv. Bioref.

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Sorption of acidic dyes from water by poly(vinyl imidazole) grafted onto poly(styrene) based beads

Cited by 5 publications

References 46 publications

Adsorptive performance of MWCNTs for simultaneous cationic and anionic dyes removal; kinetics, thermodynamics, and isotherm study

Adsorptive performance of MWCNTs for simultaneous cationic and anionic dyes removal; kinetics, thermodynamics, and isotherm study

Pullulan/poly(N‐vinylimidazole) cryogel: An efficient adsorbent for methyl orange

Effective and fast removal of crystal violet dye from aqueous solutions using Rumex acetosella: isotherm, kinetic, thermodynamic studies, and statistical analysis

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