Adsorption of heavy metal ions and azo dyes by crosslinked nanochelating resins based on poly(methylmethacrylate-co-maleic anhydride)

Masoumi, Arameh; Ghaemy, Mousa

doi:10.3144/expresspolymlett.2014.22

Cited by 39 publications

(18 citation statements)

References 34 publications

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“…The equilibrium state visible in Fig. 4 was caused by the saturation of the active binding sites of the polymer [12,34].…”

Section: Effect Of Initial Concentration Of Metal Ionsmentioning

confidence: 97%

“…There are numerous methods such as chemical oxidation [6], membrane separation [7], electrochemical coagulation, precipitation [8], ion exchange [9], biological treatment [10] and adsorption [11,12] that have been applied to resolve heavy metals from water. Amongst these techniques, the fact that it can be applied in low concentrations makes adsorption preferable for the removal of heavy metals.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Cu(II), Ni(II) and Pb(II) ions onto polyamine-polyurea polymer modified with pyromellitic dianhydride: kinetic, isotherm and thermodynamic studies

Özer

Boysan

İmamoğlu

2016

Desalination and Water Treatment

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In this study, a polyamine-polyurea polymer modified with pyromellitic dianhydride was used for batch adsorption of Cu(II), Ni(II), and Pb(II) ions to examine the effects of parameters such as pH, contact time, amount of adsorbent, temperature, and initial concentration of heavy metals. The optimum pH value was found to be 6.0 and the contact time required to reach equilibrium was 120 min. Adsorption kinetics, thermodynamics and equilibrium were analysed. The adsorptions of the metal ions were found to comply with the Langmuir isotherm equation and the pseudo-second-order kinetic model. The maximum monolayer adsorption capacity of the modified polymer for Cu(II), Ni(II), and Pb(II) ions was found to be 73.5, 81.3, and 109.9 mg g −1 , respectively. Adsorption mechanism studies of the intraparticle diffusion model showed that surface sorption and intraparticle diffusion contribute to the rate-limiting step. Thermodynamic parameters showed the adsorption processes for all metals with the polymer have an endothermic, irreversible and spontaneous nature.

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“…The equilibrium state visible in Fig. 4 was caused by the saturation of the active binding sites of the polymer [12,34].…”

Section: Effect Of Initial Concentration Of Metal Ionsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Adsorption of Cu(II), Ni(II) and Pb(II) ions onto polyamine-polyurea polymer modified with pyromellitic dianhydride: kinetic, isotherm and thermodynamic studies

Özer

Boysan

İmamoğlu

2016

Desalination and Water Treatment

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“…2952.54 cm -1 'de görülen pik alifatik -C-H titreşimleri sonucu oluşmuştur [22]. 1647.71 cm -1 'deki pik ise karbonil ve amit gruplarının piklerinin örtüşmesi sonucu ortaya çıkmıştır [23]. 1089.58 ve 955.26 cm -1 'de görülen pikler Fe3O4 parçacıkları etrafında oluşan demir hidroksitlerden kaynaklanmaktadır [24].…”

Section: Ftir Analizi (Ftir Analysis)unclassified

Dispers Blue 56 Boyasının Fe3O4 Gömülü Akrilamit Temelli Polimer İle Giderimi

Keskin¹

2017

SAÜ Fen Bilimleri Enstitüsü Dergisi

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ÖZBu çalışmada Dispers Mavi 56 isimli boyanın Fe3O4 tanecikleri gömülü akrilamit -triazin polimeri ile giderimi araştırılmıştır. Adsorpsiyona etki edebilecek olan, pH, etkileşim zamanı, karıştırma hızı, sıcaklık, başlangıç boya konsantrasyonu ve adsorbent miktarı parametreleri incelenmiştir. Optimum koşullar altında, 25 mg/L başlangıç boya konsantrasyonu ve 1.5 g polimer kullanılarak %96.6 giderim verimine ulaşılmıştır. Boya konsantrasyon ölçümleri UV-Vis spektrofotometresi kullanılarak yapılmıştır. Sentezlenen polimerin adsorpsiyon öncesi ve sonrası FTIR spektrumları alınmıştır. Adsorpsiyon mekanizmasını araştırmak amacıyla yalancı birinci derece modeli, yalancı ikinci derece modeli, Langmuir ve Freundlich izoterm sabitleri hesaplanmıştır. Sonuçlara göre adsorpsiyonun yalancı ikinci derece kinetik modeline ve Langmuir izotermine uyduğu görülmüştür.Anahtar Kelimeler: Fe3O4, akrilamit, dispers mavi 56, polimer Removal of disperse blue 56 dye by Fe3O4 embedded acrylamide based polymer ABSTRACTIn this study, removal of Disperse Blue 56 dye by Fe3O4 particles embedded acrylamidetriazine polymer was investigated. The possible effects of pH, interaction time, agitation speed, temperature, initial dye concentration and adsorbent dosage parameters on the adsorption were investigated. In the presence of 25 mg/L concentration of dye, the removal efficiency was reached 96.6% by using 1.5 g of polymer under optimum conditions. Dye concentrations were measured by UV-Vis spectrophotometer. The FTIR spectra of synthesized polymer were taken before and after adsorption. In order to investigate adsorption mechanism, the constants of pseudo-first-order, pseudo-second-order, Langmuir and Freundlich isotherms were calculated. According to the results, the adsorption well fitted with pseudosecond-order kinetic model and Langmuir isotherm.Dispers mavi 56 boyasının Fe3O4 gömülü akrilamit temelli polimer ile giderimi

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“…Bekiari et al [5] have reported the use of poly sodium acrylate (PANa) hydrogels for the removal of crystal violet and Cu 2+ from water and found that PANa hydrogel adsorb stronger Cu 2+ ions due to complex formation between the hydrogel and the metal ions by engaging one metal ion per two carboxylate anion than crystal violet just due to electrostatic interaction. The removal of metal ions like Fe(III), Cu(II) and Mn(II) was also found to depend on treatment time, pH of the medium, initial feed concentration of the metal ion [5,6]. Further, to the best of our knowledge the interaction of metal ion with hydroxy propyl cellulose (HPC) hydrogel is rather less nor available during literature survey.…”

Section: Introductionmentioning

confidence: 99%

“…to readily available low cost ones which do not even need electrical components during the last years. It is also fact that the development of hydrogel adsorbents must satisfy certain criteria like specific, fast complexation and reusability [6]. Hydrogel based adsorbents have interesting features due to their high hydrophilicity, biocompatibility, non-toxicity and biodegradability.…”

Section: Introductionmentioning

confidence: 99%

Removal of Selective Metal Ions from Water with Hydroxy Propyl Cellulose Hydrogel

Devi¹,

Devi²,

Singh³

2019

Asian J. Chem.

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In this study, environmentally friendly hydrogels prepared from hydroxy propyl cellulose hydrogels blended with poly(vinyl alcohol) (PVA) and poly(vinyl pyrrolidone) (PVP) were employed to absorb selected metal ions of Cu and Fe to find potential applications in removal of metal ion from water or in wastewater treatment. Highest adsorption capacity of hydroxy propyl cellulose hydrogels blended with PVA or PVP is shown at 0.04 % (w/v) of the metal ion solutions. Hydroxy propyl cellulose hydrogel when blended PVA has shown greater adsorption of Fe(III) ion than Cu(II) ion at higher pH. Hydroxy propyl cellulose hydrogel when blended with PVP also showed maximum adsorption capacity rather than PVA blended hydrogel.

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Adsorption of heavy metal ions and azo dyes by crosslinked nanochelating resins based on poly(methylmethacrylate-co-maleic anhydride)

Cited by 39 publications

References 34 publications

Adsorption of Cu(II), Ni(II) and Pb(II) ions onto polyamine-polyurea polymer modified with pyromellitic dianhydride: kinetic, isotherm and thermodynamic studies

Adsorption of Cu(II), Ni(II) and Pb(II) ions onto polyamine-polyurea polymer modified with pyromellitic dianhydride: kinetic, isotherm and thermodynamic studies

Dispers Blue 56 Boyasının Fe3O4 Gömülü Akrilamit Temelli Polimer İle Giderimi

Removal of Selective Metal Ions from Water with Hydroxy Propyl Cellulose Hydrogel

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