Separation and determination of some metal ions on new chelating resins containing N, N donor sets

Pramanik, Shantanu; Dhara, Sanjoy; Bhattacharyya, S.; Chattopadhyay, Pabitra

doi:10.1016/j.aca.2005.09.065

Cited by 59 publications

(35 citation statements)

References 22 publications

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“…The samples were digested by treating with HNO 3 to prepare a sample solution (aqueous) and then diluted to 25 mL. [28] The estimated amounts of Zn(II) obtained (Table 5) by using the present method are quite satisfactorily in agreement with the certified values given by the manufacturers.…”

Section: Metal Ion Competition Studiessupporting

confidence: 62%

Selective Zinc(II)‐Ion Fluorescence Sensing by a Functionalized Mesoporous Material Covalently Grafted with a Fluorescent Chromophore and Consequent Biological Applications

Sarkar

Dhara

Nandi

et al. 2009

Adv Funct Materials

201

112

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A highly ordered 2D‐hexagonal mesoporous silica material is functionalized with 3‐aminopropyltriethoxysilane. This organically modified mesoporous material is grafted with a dialdehyde fluorescent chromophore, 4‐methyl‐2,6‐diformyl phenol. Powder X‐ray diffraction, transmission electron microscopy, N2 sorption, Fourier transform infrared spectroscopy, and UV‐visible absorption and emission have been employed to characterize the material. This material shows excellent selective Zn2+ sensing, which is due to the fluorophore moiety present at its surface. Fluorescence measurements reveal that the emission intensity of the Zn2+‐bound mesoporous material increases significantly upon addition of various concentrations of Zn2+, while the introduction of other biologically relevant (Ca2+, Mg2+, Na+, and K+) and environmentally hazardous transition‐metal ions results in either unchanged or weakened intensity. The enhancement of fluorescence is attributed to the strong covalent binding of Zn2+, evident from the large binding constant value (0.87 × 104 M−1). Thus, this functionalized mesoporous material grafted with the fluorescent chromophore could monitor or recognize Zn2+ from a mixture of ions that contains Zn2+ even in trace amounts and can be considered as a selective fluorescent probe. We have examined the application of this mesoporous zinc(II) sensor to cultured living cells (A375 human melanoma and human cervical cancer cell, HeLa) by fluorescence microscopy.

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Section: Metal Ion Competition Studiessupporting

confidence: 62%

Selective Zinc(II)‐Ion Fluorescence Sensing by a Functionalized Mesoporous Material Covalently Grafted with a Fluorescent Chromophore and Consequent Biological Applications

Sarkar

Dhara

Nandi

et al. 2009

Adv Funct Materials

201

112

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“…40 On the other hand, the separation of alkali metal ions from other ions was achieved using new ion exchange resins that were prepared by incorporating the bis(2-benzimidazolyl methyl)amine into Merrifield polymer. 41 In this concern, this study introduces a well defined thermosetting ion exchangers based on unsaturated polyester-styrene spheres that are not only of economic feasibility but also with high chemical and radiation resistances as well as enhanced physical characteristics to study the sorption behavior of Li þ , Na þ , K þ , and Cs þ on them from nitrate media. The article describes two different types of suspension polymerization of unsaturated polyester-styrene (UP-St), namely, gamma irradiation suspension polymerization (GISP) and chemical suspension polymerization (CSP) in either hydroxypropyl methylcellulose (HPMC) or urea formaldehyde (UF) matrix.…”

Section: Introductionmentioning

confidence: 99%

Preparation of unsaturated polyester–styrene beads using gamma irradiation and chemical polymerization routes for use in the recovery of some alkali metal ions

El‐Nahas

Khalil

Ibrahim

et al. 2007

J of Applied Polymer Sci

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Suspension polymerization of unsaturated polyester-styrene was carried out in different media using different routes of polymerization. The effects of matrix type and concentration hold up, viscosity, irradiation dose, and the agitation speed on the resultant polymer characteristics were examined. The formed beads were physically identified using scanning electron microscopy, hardness, and particle size analysis techniques. They were smooth having typical spherical surfaces; the beads diameters were in the range of about 5-200 mm. The size of the resin beads was found to decrease with increase in the concentration and viscosity of the dispersant and impeller speed. The resultant beads were applied in the recovery of Li þ , Na þ , K þ , and Cs þ ions from acidic media. The distribution coefficients of the alkali metal ions were calculated; the order of selectivity wascase of the chemically processed resin beads, while the selectivity lies in the order of Li þ < Na þ < K þ < Cs þ in case irradiation processed ones. Finally, the economics of production of the unsaturated polyesterstyrene resins using different methodologies was studied.

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“…Macrocyclic ligands were reported in static sorption studies to show preference for the cations of noble metals like gold, silver, platinum and palladium over other metal cations including copper, lead and cadmium 8 . Two chelating resins were synthesized incorporating imidazolylazobenzene and 1,4-bis(imidazolylazo) benzene as the functional group into the Merrifield polymer 9 . Cadmium was reported to be removed from water having the normal pH of natural water.…”

Section: Cyanide Wastewatermentioning

confidence: 99%

Synthesis of Poly(hydroxamic Acid)‐Poly(amidoxime) Chelating Ligands for Removal of Metals from Industrial Wastewater

Lutfor

Mashitah

2010

Journal of Chemistry

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Synthesis of poly(hydroxamic acid)-poly(amidoxime) chelating ligands were carried out from poly(methyl acrylate-co-acrylonitrile) grafted sago starch and hydroxylamine in alkaline medium. The binding property of metal ions was performed and maximum sorption capacity of the copper was 3.20 mmol/ g and the rate of exchange of some metals was faster, i.e. t ½ ≈ 7 min (average). Two types of wastewater containing chromium, zinc, nickel, copper and iron, etc. were used and the heavy metal recovery was found to be highly efficient, about 99% of the metals could be removed from the metal plating wastewater.

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Separation and determination of some metal ions on new chelating resins containing N, N donor sets

Cited by 59 publications

References 22 publications

Selective Zinc(II)‐Ion Fluorescence Sensing by a Functionalized Mesoporous Material Covalently Grafted with a Fluorescent Chromophore and Consequent Biological Applications

Selective Zinc(II)‐Ion Fluorescence Sensing by a Functionalized Mesoporous Material Covalently Grafted with a Fluorescent Chromophore and Consequent Biological Applications

Preparation of unsaturated polyester–styrene beads using gamma irradiation and chemical polymerization routes for use in the recovery of some alkali metal ions

Synthesis of Poly(hydroxamic Acid)‐Poly(amidoxime) Chelating Ligands for Removal of Metals from Industrial Wastewater

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