Selective Separation of Hg<sup>2+</sup>on Modified Crosslinked Chitosan Beads Enriched with Amine Groups

Donia, Ahmed M.; Yousif, Ahmed M.; Atia, Asem A.; Elsamalehy, Mona F.

doi:10.1080/01496395.2011.565852

Cited by 6 publications

(1 citation statement)

References 39 publications

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“…Then 0.15 g of DASC samples were separately added to the different pH solutions and was shaken for 2 h. Figure 4a indicated the adsorption capacities were weak as the pH was lower than 3, which may be attributed to the formation of HgCl 3 − or HgCl 4 2− species in HCl medium. [ 38,39 ] As the pH increased from 3 to 6, the adsorption capacities increased slightly, holding the biggest value at pH 5–6. Similar results were obtained by other researchers.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of a Starch‐Based Adsorbent for the Effective Removal of Environmental Pollutants Hg (II)

Riley

Liu

et al. 2020

Starch Stärke

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In this work, a dialdehyde starch cysteine (DASC) Schiff base is synthesized by the reaction of dialdehyde starch (DAS) and l-cysteine, and subsequently tested to remove Hg (II) from aqueous solution using the batch method. It is also characterized by elemental analysis, Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), scanning electron microscope (SEM), Brunner-Emmet-Teller (BET) measurements, and X-ray photoelectron spectroscopy (XPS) techniques. The results reveal that the DASC is a kind of starch-based Schiff base containing thiol group, which holds excellent adsorption capacity for Hg (II) due to the interaction between sulfur atoms and Hg (II). At 25°C, the equilibrium can be achieved within 2 h and the maximal adsorption capacity of DASC with the substitution degree of 1.14 can be reached at 884.6 mg g −1 at initial pH 5. A relatively high temperature is favorable for the adsorption process of Hg (II). The kinetic and isotherm data are well fitted with the linear forms of pseudo-second order equation and Freundlich model. Additionally, the DASC shows good regenerative adsorption efficiency of 87.07% after four recycles. Owing to the advantages of economical, eco-friendly, high adsorption capacity, and recyclability, DASC may provide valuable information for the treatment of Hg (II) contaminated water.

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Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of a Starch‐Based Adsorbent for the Effective Removal of Environmental Pollutants Hg (II)

Riley

Liu

et al. 2020

Starch Stärke

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Recent Advances in the Synthesis, Properties, and Applications of Modified Chitosan Derivatives: Challenges and Opportunities

Boominathan

Sivaramakrishna

2021

Top Curr Chem (Z)

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Synthesis, characterization, and performance evaluation of ion-imprinted crosslinked chitosan (with sodium tripolyphosphate) for cadmium biosorption

Babakhani

Sartaj

2022

Journal of Environmental Chemical Engineering

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Selective Separation of Hg²⁺on Modified Crosslinked Chitosan Beads Enriched with Amine Groups

Cited by 6 publications

References 39 publications

Preparation and Characterization of a Starch‐Based Adsorbent for the Effective Removal of Environmental Pollutants Hg (II)

Preparation and Characterization of a Starch‐Based Adsorbent for the Effective Removal of Environmental Pollutants Hg (II)

Recent Advances in the Synthesis, Properties, and Applications of Modified Chitosan Derivatives: Challenges and Opportunities

Synthesis, characterization, and performance evaluation of ion-imprinted crosslinked chitosan (with sodium tripolyphosphate) for cadmium biosorption

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Selective Separation of Hg2+on Modified Crosslinked Chitosan Beads Enriched with Amine Groups

Cited by 6 publications

References 39 publications

Preparation and Characterization of a Starch‐Based Adsorbent for the Effective Removal of Environmental Pollutants Hg (II)

Preparation and Characterization of a Starch‐Based Adsorbent for the Effective Removal of Environmental Pollutants Hg (II)

Recent Advances in the Synthesis, Properties, and Applications of Modified Chitosan Derivatives: Challenges and Opportunities

Synthesis, characterization, and performance evaluation of ion-imprinted crosslinked chitosan (with sodium tripolyphosphate) for cadmium biosorption

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Selective Separation of Hg²⁺on Modified Crosslinked Chitosan Beads Enriched with Amine Groups