The Adsorption of Calmoduline via Nicotinamide Immobilized Poly(HEMA-GMA) Cryogels

Erol, Kadir

doi:10.18596/jotcsa.287321

Cited by 19 publications

(7 citation statements)

References 27 publications

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“…Correlation between the equilibrium data and the Langmuir-1 isotherm model was found to be high (R 2 ) (Table 3). The Langmuir model is based on the assumption of homogeneous adsorption energies to the surface and the absence of adsorbate transition in the surface plane [40,[43][44][45][46][47][48][49][50].…”

Section: Isotherm Studiesmentioning

confidence: 99%

Antibiotic Removal from the Aquatic Environment with Activated Carbon Produced from Pumpkin Seeds

Alacabey

2022

Molecules

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Antibiotics are among the most critical environmental pollutant drug groups. Adsorption is one of the methods used to eliminate these pollutants. In this study, activated carbon was produced from pumpkin seed shells and subsequently modified with KOH. The adsorbent obtained through this procedure was used to remove ciprofloxacin from aqueous systems. Fourier Transform-Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), elemental, X-ray Photoelectron Spectroscopy (XPS), Brunauer–Emmett–Teller (BET) and Zeta analyses were used to characterize the adsorbent. The surface area, in particular, was found to be a very remarkable value of 2730 m2/g. The conditions of the adsorption experiments were optimized based on interaction time, adsorbent amount, pH and temperature. Over 99% success was achieved in removal operations carried out under the most optimal conditions, with an absorption capacity of 884.9 mg·g−1. In addition, the Langmuir isotherm was determined to be the most suitable model for the adsorption interaction.

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Section: Isotherm Studiesmentioning

confidence: 99%

Antibiotic Removal from the Aquatic Environment with Activated Carbon Produced from Pumpkin Seeds

Alacabey

2022

Molecules

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“…The p(HEMA-GMA) cryogels were synthesized as in ref . Briefly, 7.8 mL of HEMA and 0.6 mL of GMA (HEMA/GMA = 14.6:1, mol ratio) and 1.898 g of MBAAm were dissolved in 90 mL of deionized water and degassed under vacuum for about 30 min.…”

Section: Methodsmentioning

confidence: 99%

Preparation and Properties of Cryogel Based on Poly(2-hydroxyethyl methacrylate-co-glycidyl methacrylate)

Wan

et al. 2019

Langmuir

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The immobilized metal affinity cryogels based on poly(2-hydroxyethyl methacrylate-co-glycidyl methacrylate) (p(HEMA-GMA)) containing hydroxy and epoxy groups were prepared by free-radical copolymerization under cryogenic condition and then functionalized with iminodiacetic acid and chelated Cu2+, Ca2+, and Fe3+ ions to the p(HEMA-GMA) cryogel. The structures of p(HEMA-GMA) and immobilized metal-affinity cryogels were analyzed by Fourier transform infrared spectroscopy and scanning electron microscopy (SEM)–energy dispersive X-ray spectroscopy. SEM results showed that the prepared cryogels had interconnected pores with the size of 30–100 μm. The performance of water swelling into the cryogels was fitted in Fickian diffusion. The adsorption property of cryogels was influenced by the immobilized ionic type, temperature, and adsorbate. The adsorption capacity of immobilized Cu2+ cryogel (p(HEMA)–Cu2+ (0.5 M) cryogel) was the highest in comparison with that of Ca2+ and Fe3+ affinity cryogels under the same condition. The maximum adsorption capacity of p(HEMA)–Cu2+ (0.5 M) cryogel for porcine pancreatic lipase was 150.14 mg/g at a higher temperature of 35 °C, whereas for bovine serum albumin, the maximum adsorption capacity was 154.11 mg/g at a lower temperature of 25 °C. The research of thermodynamics and kinetics indicated that the mechanism of the protein adsorption process corresponded to the Langmuir model and pseudo-second-order model.

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“…The heavy metals could accumulate in food chains and endanger public health. − Therefore, solving the problem of heavy metal pollution in the environment has always been a focus for researchers. Currently, various measures have been employed to solve this problem, such as chemical precipitation, ion exchange, membrane separation, adsorption, etc. , The adsorption method has been considered as the most widespread technology due to its flexible adsorbent design, easy operation, and high adsorption efficiency. − …”

Section: Introductionmentioning

confidence: 99%

A Multifunctional Microspheric Soil Conditioner Based on Chitosan-Grafted Poly(acrylamide-co-acrylic acid)/Biochar

Yang

Xiang

et al. 2022

Langmuir

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A multifunctional microspheric soil conditioner based on chitosan-grafted poly(acrylamide-co-acrylic acid)/biochar [CS-g-P(AM-co-AA)/BC] was prepared. First, the P(AM-co-AA) was synthesized and successfully grafted onto CS, and the three-dimensional network structure of microspheres was formed with N,N-methylenebis-(acrylamide) as the cross-linking agent according to the inverse suspension polymerization method. Meanwhile, BC and urea were encapsulated into the body of microspheres during the polymerization. The structure of the microspheres was analyzed by Fourier transform infrared spectroscopy, polarized optical microscopy, and scanning electron microscopy, and the mechanism of adsorption of Cu 2+ on the microspheres was investigated by X-ray photoelectron spectroscopy. Furthermore, the experimental results demonstrated the excellent water absorption and retention capabilities of microspheres, and the release rate of urea was dramatically reduced. Importantly, the introduction of BC significantly enhanced the adsorption performance of the microspheres with respect to heavy metal ions. Consequently, the multifunctional soil conditioner held promise for use in soil improvement and agricultural production.

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The Adsorption of Calmoduline via Nicotinamide Immobilized Poly(HEMA-GMA) Cryogels

Cited by 19 publications

References 27 publications

Antibiotic Removal from the Aquatic Environment with Activated Carbon Produced from Pumpkin Seeds

Antibiotic Removal from the Aquatic Environment with Activated Carbon Produced from Pumpkin Seeds

Preparation and Properties of Cryogel Based on Poly(2-hydroxyethyl methacrylate-co-glycidyl methacrylate)

A Multifunctional Microspheric Soil Conditioner Based on Chitosan-Grafted Poly(acrylamide-co-acrylic acid)/Biochar

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