Synthesis and characterization of a new fast swelling poly(EPMA-co-METAC) as superabsorbent polymer for anionic dye absorbent

Ilgın, Pınar; Gür, Aycan

doi:10.1007/s13726-015-0309-4

Cited by 12 publications

(8 citation statements)

References 25 publications

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“…P(EPMA-co-AMPS) hydrogels are ionic in nature so their swelling behavior depends on pH of the medium. As appeared in this Figure, the equilibrium mass swelling percentage for pure EPMA is not influenced by changing the pH of the swelling medium due to the fact that EPMA is non-ionic hydrogel and does not have any group that could be ionized in an aqueous solution [21]. With the overview of the AMPS groups which contains ionic (-SO 3 -) units into the main chain, the swelling ratios are increased as the pH values of solutions are enhanced.…”

Section: Synthesis and Characterization Of P(epma-co-amps) Hydrogelmentioning

confidence: 80%

“…Then the hydrogels were dried at 25 -C till they attained constant weight. Finally, they were kept in sealed containers for swelling studies, characterization and application of experiments [21].…”

Section: Synthesis Of P(epma-co-amps) Based Hydrogelmentioning

confidence: 99%

“…This situation can be explained by the stronger interactions between the active sites of adsorbent and adsorbate molecules. Electrostatic interaction is very dominant which can form between sulfonate group on the backbone of p(EPMA-co-AMPS) and quaternary nitrogen group of cationic dye and hence dye adsorption is better [21]. Digital image of color changes of dye solutions and the hydrogel during the adsorption process and a possible interaction between the hydrogel and the cationic MB molecule is presented in Figure 7 and Figure 8, respectively.…”

Section: Dye Adsorption Studiesmentioning

confidence: 99%

See 2 more Smart Citations

Adsoption of Cationic Dye on Anionic Hydrogel and Its Second Use for Drug Delivery with Antibacterial Properties

Ilgın¹

2018

HJBC

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B u çalışmada, serbest radikal kopolimerizasyonu ile 2,3-epoksipropilmetakrilat ve 2-akrilamido-2-metil-1propansülfonik asit içeren yeni bir uyarana duyarlı p (EPMA-co-AMPS) hidrojeller hazırlandı. Elde edilen hidrojellerin şişme özelliklerinin yanında yüzey morfolojisi, kimyasal ve mekanik özellikleri SEM, FTIR ve TPA kullanılarak tamamen karakterize edilmiştir. İlk olarak, çevresel uygulamalarda sulu çözeltiden katyonik boyaların uzaklaştırılması için hidrojeller kullanılmıştır. Hidrojellerin adsorpsiyon izotermleri ve kinetikleri, sırasıyla Langmuir denklemi ve yalancı-ikinci mertebeden denklem ile iyi bir uyum içindedir. Ayrıca, p (EPMA-co-AMPS) hidrojellerin adsorpsiyon kapasitesi, halihazırda bildirilmiş olan diğer adsorbanlarla karşılaştırıldığında rekabet etmektedir. İkinci olarak, biyomedikal uygulamalarda kontrollü ilaç salımı çalışmaları için hidrojelin bir ilaç taşıyıcısı olarak kullanımı araştırılmıştır. Son olarak, ilaç-yüklü hidrojeller Gram-pozitif bakterilere (Bacillus cereus) ve Gram-negatif bakterilere (Salmonella typhimurium) karşı antibakteriyel aktiviteler için test edilmiş ve antibakteriyel aktivite göstermiştir. Bu çalışmadan elde edilen sonuçlar, hazırlanan hidrojelin çeşitli uygulamalar için umut verici materyaller olabileceğini göstermektedir. Anahtar KelimelerHidrojeller, boya, ilaç taşıyıcı sistemler, adsorpsiyon, antibakteriyel aktivite.

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Section: Synthesis and Characterization Of P(epma-co-amps) Hydrogelmentioning

confidence: 80%

Section: Synthesis Of P(epma-co-amps) Based Hydrogelmentioning

confidence: 99%

Section: Dye Adsorption Studiesmentioning

confidence: 99%

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Adsoption of Cationic Dye on Anionic Hydrogel and Its Second Use for Drug Delivery with Antibacterial Properties

Ilgın¹

2018

HJBC

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“…The high correlation coefficient ( 2 ) and the good agreement between the theoretical adsorption capacity ( ,cal ) and the experimental adsorption capacity ( ,exp ) indicated that As (III) adsorption on Ce-Al-Fe trimetal oxide adsorbent was fitted well by the pseudo-second-order model. This suggested that the adsorption process might be chemisorption [36][37][38]. The adsorption rate (V 0 ) increased with initial increasing As (III) concentration due to increasing driving force.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Removal of Arsenite from Water by Ce-Al-Fe Trimetal Oxide Adsorbent: Kinetics, Isotherms, and Thermodynamics

Sun

Zhang

Marhaba

et al. 2016

Journal of Chemistry

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Ce-Al-Fe trimetal oxide adsorbent was prepared. The morphology characteristics of the new adsorbent were analysed by the transmission electron microscope (SEM) method. The SEM results implied its ability in the adsorption of As (III). To verify the analyses, bench-scale experiments were performed for the removal of As (III) from water. In the experiments of adsorption, As (III) adsorption capacity of the trimetal oxide adsorbent was presented significantly higher than activated aluminium oxide and activated carbon. As (III) adsorption kinetics resembled pseudo-second-order adsorption mode. When initial As (III) concentration was 3, 8, and 10 mg·L−1, the maximum adsorption capacity achieved was 1.48, 3.73, and 5.12 mg·g−1, respectively. In addition, the experimental adsorption data were described well by the Freundlich adsorption isotherm model at 20, 30, and 40°C. The enthalpy change(ΔS), the standard free energy(ΔG), and entropy change(ΔH)indicated that the nature of As (III) adsorption was exothermic and spontaneous with increasing randomness on the interface of solid and liquid. And the adsorption mechanism can be interpreted as chemisorption with As (III) multilayer coverage formation on the adsorbent surface.

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“…Among these methods and processes, adsorption is one of the most attractive and promising technologies [10,11]. Scientists have developed many kinds of adsorbents used in environmental treatments, such as TiO 2 immobilized on activated carbon [12,13], high surface area activated carbons [14][15][16], carbon nanotubes [17], magnetic nanoparticles [18,19], metal-organic frameworks [20,21], porous diatomite ceramic filter [22], novel stimuli-responsive hydrogels [23][24][25], and so on. However, among these adsorption materials, those with selective adsorption properties are scarce.…”

Section: Introductionmentioning

confidence: 99%

Selective adsorption of zwitterionic viscose fiber treated with sodium chloroacetate and hyperbranched polyethylenimine

Zhang

Liu

2020

Iran Polym J

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Anionic modified viscose fiber (AVF) was prepared by using viscose fiber (VF) as raw material, sodium hydroxide as catalyst and sodium chloroacetate as modification reagent. The COOH content of anionic viscose fiber was 109.25 mmol/kg. Anionic viscose fibers were modified with branched polyethylenimine (HPEI) at 140 °C hydrothermal environment using a high-pressure reaction kettle. Zwitterionic viscose fibers (AVF-g-HPEI) with different amino and carboxyl contents could be obtained by changing the ratio of the two modified reagents. Increasing HPEI dosage resulted in amide group content of zwitterionic viscose fibers ranging from 0 to 108.35 mmol/kg. The zwitterionic viscose fibers were characterized by IR, SEM and XPS. IR analysis showed that zwitterionic viscose fiber was successfully prepared. SEM analysis showed that the reaction mainly occurred on the surface of the fiber, and the fiber structure was not changed. XPS analysis demonstrated that with the HPEI dosage increasing nitrogen elements on the surface of zwitterionic viscose fiber increased significantly. Dye adsorption experiments indicated that (1) AVF-g-HPEI could selectively adsorb the anionic dye or the cationic dye (such as methyl orange and methylene blue) from the mixed solution after the pre-treatment with pH 4.5 or pH 10.5 solution, respectively, (2) the dyes adsorbed by zwitterionic viscose fiber could be desorbed in the aqueous solution of pH 4.5 or 10.5, respectively and (3) the desorption ratio of AVF-g-HPEI remained above 0.85 after eight cycles.

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Synthesis and characterization of a new fast swelling poly(EPMA-co-METAC) as superabsorbent polymer for anionic dye absorbent

Cited by 12 publications

References 25 publications

Adsoption of Cationic Dye on Anionic Hydrogel and Its Second Use for Drug Delivery with Antibacterial Properties

Adsoption of Cationic Dye on Anionic Hydrogel and Its Second Use for Drug Delivery with Antibacterial Properties

Removal of Arsenite from Water by Ce-Al-Fe Trimetal Oxide Adsorbent: Kinetics, Isotherms, and Thermodynamics

Selective adsorption of zwitterionic viscose fiber treated with sodium chloroacetate and hyperbranched polyethylenimine

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