Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers

Maksin, Danijela D.; Nastasović, Aleksandra B.; Milutinović-Nikolić, A.; Suručić, Ljiljana; Sandić, Zvjezdana P.; Hercigonja, Radmila; Onjia, Antonije

doi:10.1016/j.jhazmat.2011.12.079

Cited by 113 publications

(61 citation statements)

References 67 publications

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“…In the case of DETA the concentration of amino groups is higher by 1.15 times compared to those with ethylenediamine (EDA). In the paper by Maksin et al [29] the porous and nonporous crosslinked poly(glycidyl methacrylate-coethylene glycol dimethacrylate) were prepared by suspension copolymerization and functionalized with diethylenetriamine. They found that the maximum adsorption capacity at pH 1.8 was 143 mg/g for PGME2-DETA.…”

Section: Adsorption Test Resultsmentioning

confidence: 99%

New crosslinked hydrogels derivatives of 2-hydroxyethyl methacrylate: Synthesis, modifications and properties

Podko¹,

Bartnicki²,

Gawdzik³

2012

Express Polym. Lett.

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Abstract. This paper presents the synthesis, physicochemical properties and modifications of 2-hydroxyethyl methacrylate copolymers. It describes the new 2-hydroxyethyl methacrylate hydrogels in the form of microbeads of different degrees of crosslinking (2, 5, 8, 10, 15 and 20% mol). As crosslinking monomers bis[4(2-hydroxy-3-methacryloyloxypropoxy) phenyl]-sulfide and ethylene glycol dimethacrylate were used. The new hydrogels were obtained by two alternative methods in a suspension copolymerisation procedure. The copolymers were modified with diethylenetriamine in an epoxide opening reaction. Thermal properties (differential scanning calorimetry, thermogravimetric analysis) and swelling characteristic in typical solvents of the obtained functional hydrogels were examined. The chemical structure of the copolymers before and after modification was confirmed by Fourier transform infrared spectroscopy and elemental analyses. Moreover, their sorptive properties in removal of Cu(II), Zn(II), Cd(II), and Pb(II) ions from aqueous solutions were also presented. The Langmuir and Freundlich isotherm models are used to describe the adsorption characteristics of the selected modified hydrogels.

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Section: Adsorption Test Resultsmentioning

confidence: 99%

New crosslinked hydrogels derivatives of 2-hydroxyethyl methacrylate: Synthesis, modifications and properties

Podko¹,

Bartnicki²,

Gawdzik³

2012

Express Polym. Lett.

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“…The adsorption rate constant of pure water is higher than groundwater in Fig. 6, which can be explained by the fact that the adsorption of pure water is easier and faster than groundwater (Maksin et al 2012). In addition, the main mineral component of composite is SiO 2 and albite from XRF result.…”

Section: Degradation Process Of 24-dcpmentioning

confidence: 90%

Permeable reactive barrier of coarse sand-supported zero valent iron for the removal of 2,4-dichlorophenol in groundwater

Gao

Zhang

et al. 2015

Environ Sci Pollut Res

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In this study, coarse sand-supported zero valent iron (ZVI) composite was synthesized by adding sodium alginate to immobilize. Composite was detected by scanning electron microscope (SEM), X-ray diffraction (XRD), and X-ray fluorescence (XRF). SEM results showed that composite had core-shell structure and a wide porous distribution pattern. The synthesized composite was used for degradation of 2,4-dichlorophenol (2,4-DCP) contamination in groundwater. Experimental results demonstrated that degradation mechanism of 2,4-DCP using coarse sand-supported ZVI included adsorption, desorption, and dechlorination. 2,4-DCP adsorption was described as pseudo-second-order kinetic model. It was concluded that dechlorination was the key reaction pathway, ZVI and hydrogen are prime reductants in dechlorination of 2,4-DCP using ZVI.

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“…Cr(III) is commonly less toxic and has been known to be essential in metabolism of glucose in mammals 2 . Cr(VI) is highly toxic and suspected as carcinogenic agent because it can modifies the process of DNA transcription causing chromosomal aberrations 3 . Furthermore, it can cause epidermal irritation and kidney and gastric damage 4 .…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Hexavalent Chromium From Aqueous Solutions Using Acid Activated of Natural Zeolite Collected From Ende-Flores, Indonesia

2017

Rasayan J Chem

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Natural zeolite collected from Ende-Flores Indonesia was characterized and activated with acid solution for Cr(VI) adsorption from aqueous solution. This natural zeolite is mainly composed of quartz and 50% mordenite. The kinetic adsorption modeling was fitted best with the pseudo-second-order model, whereas isotherm adsorption followed the Langmuir model with the maximum adsorption (Qmax) of NZ and ANZ are 0.189 mg/g and 1.040 mg/g. Moreover the ANZ was favorable for adsorption of Cr(VI) respectively.

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Equilibrium and kinetics study on hexavalent chromium adsorption onto diethylene triamine grafted glycidyl methacrylate based copolymers

Cited by 113 publications

References 67 publications

New crosslinked hydrogels derivatives of 2-hydroxyethyl methacrylate: Synthesis, modifications and properties

New crosslinked hydrogels derivatives of 2-hydroxyethyl methacrylate: Synthesis, modifications and properties

Permeable reactive barrier of coarse sand-supported zero valent iron for the removal of 2,4-dichlorophenol in groundwater

Adsorption of Hexavalent Chromium From Aqueous Solutions Using Acid Activated of Natural Zeolite Collected From Ende-Flores, Indonesia

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