Ion-imprinted modified chitosan resin for selective removal of Pd(II) ions

Monier, M.; Abdel-Latif, D.A.; El-Reash, Y.G. Abou

doi:10.1016/j.jcis.2016.01.074

Cited by 119 publications

(32 citation statements)

References 33 publications

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“…The binding equilibrium could be achieved within 3 min, which shows an ultrafast kinetic process. The binding ratios of IIP‐PEI/CM and NIP‐PEI/CM are much faster in comparison with those of other imprinted materials previously reported, and the results are summarized in Table . This is due to abundant binding sites and small mass transfer resistance on the surface of IIP‐PEI/CM and NIP‐PEI/CM.…”

Section: Resultsmentioning

confidence: 63%

Selective removal of tungstate anions from aqueous solutions by surface anion‐imprinted ceramic membranes

Dong

Zeng

Zhou

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND: It is significantly important to develop new technologies and materials for removal of tungstate anions (W(VI)) from aqueous solutions. An ion imprinted membrane not only possesses all virtues of a separation membrane, but also has tailor-made recognition sites. In this work, a novel surface anion-imprinted ceramic membrane (IIP-PEI/CM) was fabricated to remove W(VI) selectively from aqueous solutions. RESULTS: FT-IR, XPS, TGA, SEM, streaming potential, pore size distribution and water flux confirmed the successful fabrication of IIP-PEI/CM. With increasing pH, binding capacities (Q e ) of W(VI) onto IIP-PEI/CM and non-imprinted membrane (NIP-PEI/CM) rapidly decreased. At pH = 2.0, Q e values of IIP-PEI/CM and NIP-PEI/CM were 139.4 and 47.9 mg 100 g −1 , respectively. Binding equilibrium was achieved within 3 min, showing an ultra-fast kinetic process. Compared with NIP-PEI/CM, IIP-PEI/CM had higher selectivity for W(VI) in the presence of Mo(VI) and Cr(VI) ions, and its selectivity coefficients for W(VI)/Mo(VI) and W(VI)/Cr(VI) were 15.47 and 19.74, respectively. During dynamic filtration, IIP-PEI/CM was effective and selective for removal of W(VI), and it had a good reusability. Protonated amine groups within PEI participated the uptake of W(VI) by electrostatic interactions. CONCLUSION: IIP-PEI/CM showed ultrafast and selective binding of W(VI) anions, and has potential application for W(VI) removal/recovery from aqueous solutions.

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Section: Resultsmentioning

confidence: 63%

Selective removal of tungstate anions from aqueous solutions by surface anion‐imprinted ceramic membranes

Dong

Zeng

Zhou

et al. 2018

J of Chemical Tech & Biotech

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“…In recent years, removal of contaminants from water using adsorption technology has shown a great efficiency in addition to many economic and environmental advantages. 14,15 Although many adsorbents have been utilized for Ni 2+ ion removal from aquatic media, such as carbon nanomaterials, 16,17 magnetic and nonmagnetic polymeric resins, 18,19 functionalized silica gel, 20 chelating fibers and membranes 21,22 as well as modified biopolymers, 23 the absence of selectivity to identify specific targeted ions significantly hampers extensive application. 24 As a relatively smart and modern technique, molecular imprinting has been utilized to prepare adsorbents with highly selective capabilities.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of azo‐functionalized ion‐imprinted polymeric resin for selective extraction of nickel(II) ions

Monier

Shafik

Abdel-Latif

2018

Polymer International

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“…5 The scarcities of precious metals and rapid industrial development have seen the emergence of several new techniques for recovering this valuable metal. [6][7][8] A broad series of biosorbents and non-conventional adsorbents have gained marked attention for their ability to remove heavy metals from wastewater. 9 Methods such as ionexchange, solvent extraction, coagulation, photocatalytic degradation, membrane separation and adsorption are known for their efficiency in the removal and recovery of heavy metals.…”

Section: Introductionmentioning

confidence: 99%

A perspective on diverse adsorbent materials to recover precious palladium and the way forward

2017

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The removal and recovery of precious noble metals is noteworthy in a variety of applications. The need to recover these precious metals is associated with their high cost and other environmental impacts. The Nobel Prize conferred to Suzuki, Heck and Negishi in 2010 has underlined the remarkable significance of palladium as a catalyst in several important transformations. Palladium is one such platinum group noble metal that finds diverse applications in the automobile industry, electronics, jewelry, pharmaceutics, catalysis, etc. Therefore, the recovery of palladium has acquired importance. Methods such as liquidliquid extraction and adsorption using biopolymers, polymeric resins, carbonaceous materials and silica based materials are discussed based on their removal efficiency, adsorption capacities, regeneration and other parameters. The review looks at a perspective based on the applicability of certain important adsorbents employed in recent years pertaining to the removal of palladium from aqueous solution, spent catalysts and industrial wastes.

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Ion-imprinted modified chitosan resin for selective removal of Pd(II) ions

Cited by 119 publications

References 33 publications

Selective removal of tungstate anions from aqueous solutions by surface anion‐imprinted ceramic membranes

Selective removal of tungstate anions from aqueous solutions by surface anion‐imprinted ceramic membranes

Synthesis of azo‐functionalized ion‐imprinted polymeric resin for selective extraction of nickel(II) ions

A perspective on diverse adsorbent materials to recover precious palladium and the way forward

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