New hydrogels based on modified chitosan as metal biosorbent agents

Kandile, Nadia G.; Nasr, Abir S.

doi:10.1016/j.ijbiomac.2013.12.022

Cited by 31 publications

(11 citation statements)

References 25 publications

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“…However, the adsorption capacity of the modified forms of chitosan beads (protonated (PCB), carboxylated (CCB) and grafted CB (GCB)) was not high enough (7.042, 9.346, and 14.286 mg/g, respectively). On the other hand, a series of ions (Cu(II), Co(II), Zn(II), Hg(II), Pb(II)) were removed with another grafted chitosan derivative [ 60 ]. The modification reaction was based on the reaction of chitosan with 4,4′-diformyl-α-ω-diphenoxy-ethane.…”

Section: Modified Chitosans For Metals/ions Adsorptionmentioning

confidence: 99%

Recent Modifications of Chitosan for Adsorption Applications: A Critical and Systematic Review

2015

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Chitosan is considered to be one of the most promising and applicable materials in adsorption applications. The existence of amino and hydroxyl groups in its molecules contributes to many possible adsorption interactions between chitosan and pollutants (dyes, metals, ions, phenols, pharmaceuticals/drugs, pesticides, herbicides, etc.). These functional groups can help in establishing positions for modification. Based on the learning from previously published works in literature, researchers have achieved a modification of chitosan with a number of different functional groups. This work summarizes the published works of the last three years (2012–2014) regarding the modification reactions of chitosans (grafting, cross-linking, etc.) and their application to adsorption of different environmental pollutants (in liquid-phase).

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Section: Modified Chitosans For Metals/ions Adsorptionmentioning

confidence: 99%

Recent Modifications of Chitosan for Adsorption Applications: A Critical and Systematic Review

2015

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“…1c, modi ed chitosan adsorbent) are as follows : Stretching vibration -OH, v(O-H) at 3324-3363 cm-1 and bending vibration OH group, d(O-H) observed at 1211-1234 cm −1 (Coates, 2006). A peak at 3363 cm −1 is the functional group -NH secondary (Kandile and Nasr, 2014). Stretching vibrations C-O-C , v(C-O-C) at 1118 cm −1 (Coates, 2006).…”

Section: Synthesis Of Chitosan -Schi Base Of 44-diaminodi-mentioning

confidence: 99%

“…Chitosan was synthesized by deacetylation of chitin (Mohanasrinivasan et al, 2013). Chitosan and modi ed chitosan can act as biosorbent (Krishnapriya and Kandaswamy, 2010;Du et al, 2009;Kocak et al, 2012;Monier, 2012;Mujeeb et al, 2014;Kandile and Nasr, 2014;Li et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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A Adsorbent of Chitosan Linked by Methylene Bridge and Schiff Base of 4,4-diaminodiphenyl Ether –vanillin : Synthesis, Characterization and Its Application After Reacted by Zn(II) Ion as Antibacterial Agent

Fatoni¹,

Hariani²,

Hermansyah³

et al. 2018

sci. technol. indones.

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The synthesis chitosan linked by methylene bridge-Schiff base of 4,4-diaminodiphenyl ether-vanillin (modified chitosan adsorbent) has been studied. The aims of this research were modification of chitosan with Schiff base of 4,4-diaminodiphenyl ether-vanillin and formaldehyde and its application as antibacterial agent after used as an adsorbent of Zn(II) ion. Characterization of modified chitosan adsorbent was conducted using FTIR spectroscopy. Process of adsorption were conducted at 0.15 g of modified chitosan adsorbent reacted by concentration of Zn(II) ion solution (pH 6, 150 mg/L, 50 mL), contact time at 150 min. and at room temperature (280C). Modified chitosan adsorbent after reacted by Zn(II) ion solution as antibacterial agent with paper disk method. The result showed that chitosan can be modified with Schiff base of 4,4-diaminodiphenyl ether-vanillin and formaldehyde to form chitosan linked methylene bridge and Schiff base of 4,4-diaminodiphenyl ether-vanillin. Antibacterial of chitosan and modified chitosan adsorbent were higher than modified chitosan adsorbent after reacted by Zn(II) ion. Keywords : modified chitosan, antibacterial agent

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“…Moreover, Kandile et al [9] reported the use of modified chitosan-based hydrogel with pH-sensitive behavior in metal removal. Wang et al [10], for example, reported the preparation of the CTS-g-PAA/GE semi-IPN hydrogels Abstract In this study, a novel hybrid hydrogel based on chitosan, acrylic acid and amine-functionalized nanosilica was prepared and characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy.…”

Section: Introductionmentioning

confidence: 99%

Hydrogel nanocomposite based on chitosan-g-acrylic acid and modified nanosilica with high adsorption capacity for heavy metal ion removal

et al. 2015

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New hydrogels based on modified chitosan as metal biosorbent agents

Cited by 31 publications

References 25 publications

Recent Modifications of Chitosan for Adsorption Applications: A Critical and Systematic Review

Recent Modifications of Chitosan for Adsorption Applications: A Critical and Systematic Review

A Adsorbent of Chitosan Linked by Methylene Bridge and Schiff Base of 4,4-diaminodiphenyl Ether –vanillin : Synthesis, Characterization and Its Application After Reacted by Zn(II) Ion as Antibacterial Agent

Hydrogel nanocomposite based on chitosan-g-acrylic acid and modified nanosilica with high adsorption capacity for heavy metal ion removal

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