Recovering Heavy Metal Ions from Complex Solutions Using Polyethylenimine Derivatives Encapsulated in Alginate Matrix

Bertagnolli, Caroline; Grishin, Andrey; Vincent, Thierry; Guibal, Eric

doi:10.1021/acs.iecr.5b04683

Cited by 72 publications

(33 citation statements)

References 37 publications

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“…Bertagnolli et al. immobilized polyethylenimine (PEI) derivatives into an alginate matrix to take advantage of the adsorption properties of both PEI and alginate . The adsorption properties of the PEI‐alginate composite were tested for the recovery of Cd(II), Cu(II), and Zn(II) ions from aqueous solutions in the presence of inorganic ions.…”

Section: Recent Advances In the Development Of Water Soluble Flocculantsmentioning

confidence: 99%

“…Bertagnolli et al immobilized polyethylenimine (PEI) derivatives into an alginate matrix to take advantage of the adsorption properties of both PEI and alginate. [92] The adsorption properties of the PEI-alginate composite were tested for the recovery of Cd(II), Cu(II), and Zn(II) ions from aqueous solutions in the presence of inorganic ions. They also noted that the presence of calcium and sodium salts strongly reduced the adsorption of heavy metals, whereas the amine groups from PEI improved the adsorption performance.…”

Section: Alginate-based Materialsmentioning

confidence: 99%

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Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Vajihinejad

Gumfekar

Bazoubandi

et al. 2018

Macro Materials & Eng

142

108

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Water soluble polymer flocculants are important constituents of solid–liquid separation units for the treatment of a variety of process‐affected effluents. The systematic development of a flocculant relies on a good understanding of flocculation process, polymer synthesis, polymer characterization, and, not the least, flocculation performance assessment as desired for a particular treatment process, all of which are essential to establish meaningful relationships between flocculant microstructure and flocculation efficiency. The aim of this article is to communicate the bigger picture of this research area to the readers. The recent advances in the application of bio/natural, synthetic, and stimuli‐responsive flocculants are reviewed. Then, the basic polymer reaction engineering tools to control the microstructure of flocculants are provided and the techniques for the quantification of flocculant microstructure are concisely discussed. This is followed by a review of the methods used for the characterization of particle‐polymer force measurement, and flocculation/dewatering assessment with attention to the characterization of aggregate structures.

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Section: Recent Advances In the Development Of Water Soluble Flocculantsmentioning

confidence: 99%

Section: Alginate-based Materialsmentioning

confidence: 99%

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Vajihinejad

Gumfekar

Bazoubandi

et al. 2018

Macro Materials & Eng

142

108

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“…[22][23][24] Because of the large number of amine groups in its structure, PEI has been shown to be a good chelating polymer for metal cations specically Cu 2+ . 25,26 Modication of CS beads with PEI signicantly increased the amine groups present in the new material, giving it better adsorption capacity towards Cu 2+ ions compared to unmodied beads.…”

Section: -21mentioning

confidence: 99%

Response surface methodology as a powerful tool to optimize the synthesis of polymer-based graphene oxide nanocomposites for simultaneous removal of cationic and anionic heavy metal contaminants

et al. 2017

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Nanocomposites containing graphene oxide (GO), polyethyleneimine (PEI), and chitosan (CS) were synthesized for chromium(VI) and copper(II) removal from water. Response surface methodology (RSM) was used for the optimization of the synthesis of the CS-PEI-GO beads to achieve simultaneous maximum Cr(VI) and Cu(II) removals. The RSM experimental design involved investigating different concentrations of PEI (1.0-2.0%), GO (500-1500 ppm), and glutaraldehyde (GLA) (0.5-2.5%), simultaneously. Batch adsorption experiments were performed to obtain responses in terms of percent The optimum bead composition contained 2.0% PEI, 1500 ppm GO, and 2.08% GLA, and allowed Cr (VI) and Cu(II) removals of up to 91.10% and 78.18%, respectively. Finally, characterization of the structure and surface properties of the optimized CS-PEI-GO beads was carried out using X-ray diffraction (XRD), porosity and BET surface area analysis, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS), which showed favorable adsorbent characteristics as given by a mesoporous structure with high surface area (358 m 2 g À1 ) and plenty of surface functional groups. Overall, the synthesized CS-PEI-GO beads were proven to be effective in removing both cationic and anionic heavy metal pollutants.

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“…The metal ions e.g. Cd(II), Cu(II) and Zn(II) are found to form complex with hyperbranched polyethyleimine . In the present study, the sensing layer consists of the octadecylamine functionalized single walled carbon nanotubes.…”

Section: Resultsmentioning

confidence: 90%

Detection of Cadmium Ion in Potable Water Using Quartz Crystal Microbalance

Taneja¹,

Manjuladevi²,

Gupta³

et al. 2017

Macromolecular Symposia

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The presence of heavy metal e.g. cadmium in potable water is one of the major threats on our health. It should be detected and removed from potable water before consumption. The maximum permissible concentration of cadmium ion in drinking water lies in the range of 2–10 ppb. The consumption of excessive cadmium through potable water can lead to cancer, and can affect the organs like kidney and lungs severely. In this article, we report the development of a piezoelectric based sensor for the detection of cadmium ion in water. A functional layer of nanocomposite of single walled carbon nanotubes and beewax was deposited by spin coating technique onto 5 MHz AT‐cut quartz crystal wafers and the shift in resonance due to physioadsorption of cadmium from water medium was recorded. We find a very stable linear response curve with the lowest detectable concentration of 5.2 ppb. The change in the morphology of the functional layer before and after adsorption of cadmium is studied using atomic force microscope and field emission scanning electron microscope. The presence of calcium ion in water medium affected the response curves of cadmium sensing. We found a systematic variation in sensitivity towards Cd ion due to the presence of Ca ion in water medium.

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Recovering Heavy Metal Ions from Complex Solutions Using Polyethylenimine Derivatives Encapsulated in Alginate Matrix

Cited by 72 publications

References 37 publications

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Response surface methodology as a powerful tool to optimize the synthesis of polymer-based graphene oxide nanocomposites for simultaneous removal of cationic and anionic heavy metal contaminants

Detection of Cadmium Ion in Potable Water Using Quartz Crystal Microbalance

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