Hybrid ion exchanger supported nanocomposites: Sorption and sensing for environmental applications

Sarkar, Sudipta; Chatterjee, Prasun; Cumbal, Luis; SenGupta, Arup K.

doi:10.1016/j.cej.2010.11.075

Cited by 73 publications

(38 citation statements)

References 36 publications

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“…With excess ≅FeOH, as in the typical extraction conditions, the favoured species is ≅ FeH 2 PO 4 at pH values below 6. Increased pH from pH 6 to 7 favours the www.soci.org X You et al Recently, Blaney et al, 33 Sengupta and Pandit 48 and Sarkar et al 49 reported P(V) removal by a nanosize HFO hybrid polymeric sorbent using a strong base anion exchanger of styrene divinylbenzene with quaternary ammonium functional groups. The formation of inner-sphere complexes through binding of monoand double-charged phosphate ions (H 2 PO 4 − and HPO 4 2− ) onto surface sites of the HFO nanoparticles was proposed.…”

Section: P(v) Extraction Properties Of Haix: Model Description and Phmentioning

confidence: 99%

Phosphate removal from aqueous solution using a hybrid impregnated polymeric sorbent containing hydrated ferric oxide (HFO)

You

Guaya

Farrán

et al. 2015

J of Chemical Tech & Biotech

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BACKGROUND: This study evaluated a polymeric ion exchanger impregnated with nanoparticles of hydrated ferric oxide as a selective sorbent for anionic P(V) species. The hybrid impregnated anion exchanger (HAIX) employed as sorbent combines the durability and mechanical strength of a polymeric weak base anion exchange resin with the high sorption affinity of hydrated ferric oxide towards P(V) species.; RESULTS: The P(V) loading capacity of the sorbent at a pH simulating the expected conditions in treated wastewaters was 92+/-3mg P-PO4 g(-1) in single component solutions. The sorption of P(V) is affected slightly by the common ions typically present in these effluents such as Cl-, SO42- and NO3-, and a reduction of only 5% was observed (89+/-2 mg P-PO4 g(-1)) in multicomponent solutions. The sorbent can be regenerated (95+/-3%) using 4% (w/w) sodium hydroxide solution.; CONCLUSIONS: HAIX displays high selectivity for phosphate and small affinity for SO42-, NO3- and Cl- ions, which provides excellent conditions for its application at pH values typical of secondary wastewater effluents. HAIX exhibits higher and competitive phosphate removal capacity compared with data reported in the literature for materials based on HFO and for adsorbents prepared by impregnation of HFO onto polymeric supports. (C) 2015 Society of Chemical IndustryPeer ReviewedPostprint (author's final draft

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Section: P(v) Extraction Properties Of Haix: Model Description and Phmentioning

confidence: 99%

Phosphate removal from aqueous solution using a hybrid impregnated polymeric sorbent containing hydrated ferric oxide (HFO)

You

Guaya

Farrán

et al. 2015

J of Chemical Tech & Biotech

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“…Due to improved performance, composite ion exchange materials have been extensively used in environmental remediation, analytical and electroanalytical processes such as waste water treatment, separation of metal ions, catalysis, polymer electrolyte membrane fuel cells and gas perm-selectivity [8][9][10][11][12][13][14]. However, to understand the theoretical aspect of application to validate the method prior to the expensive and time-consuming experimental procedures, information related to ion exchange kinetics and the mobility of counter ions in the lattice structure of ion exchange materials is required.…”

Section: Introductionmentioning

confidence: 99%

Ion Exchange Kinetics of Heavy Metal Ions on Organic–Inorganic Composite Cation Exchanger Poly-o-toluidine Zr(IV) Tungstate

Talha

Naushad

2012

J Inorg Organomet Polym

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To study the ion exchange kinetics of heavy metal ions on the organic-inorganic composite cation exchanger poly-o-toluidine Zr(IV) tungstate, NernstPlanck was computer simulated. Simulated numerical results for counter ions (Cu, Zn, Cd and Pb) of equal valence and four different ionic mobilities are presented to understand the ionic diffusion process. These results are based on the fractional attainment of equilibrium U(s), of the counter ions under study. The forward (M 2? -H ? ) and reverse (H ? -M 2? ) ion exchange processes are justified as the particle diffusion phenomenon. The self-diffusion coefficient (D o ), energy of activation (E a ), and entropy of activation (DS*) have also been estimated to understand the ion exchange process occurring over the surface of this cation exchanger and indicated that the ion exchange process is feasible and spontaneous. It is concluded that the difference in activation energies and entropy of activation may facilitate the separation of metal ions. The regeneration capability of this cation exchanger was also explained.

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“…Copper, zinc, cadmium and lead were in their cationic forms in the pH range even 8.0 [46]. At pH ~ 6.0 Cu(II) and Pb(II) are converted to an insoluble phase as Cu(OH) 2 (presently by Layne RT ) [49,50]. It is characterized by high capacity, low operating costs, proven iron chemistry, good regenerable properties, optimal flow dynamics, rapid adsorption kinetics and low pressure drop.…”

Section: Mechanism Of Adsorptionmentioning

confidence: 99%

Effect of accompanying ions and ethylenediaminedisuccinic acid on heavy metals sorption using hybrid materials Lewatit FO 36 and Purolite Arsen Xnp

Kołodyńska

Kowalczyk

Hubicki

et al. 2015

Chemical Engineering Journal

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Hybrid ion exchanger supported nanocomposites: Sorption and sensing for environmental applications

Cited by 73 publications

References 36 publications

Phosphate removal from aqueous solution using a hybrid impregnated polymeric sorbent containing hydrated ferric oxide (HFO)

Phosphate removal from aqueous solution using a hybrid impregnated polymeric sorbent containing hydrated ferric oxide (HFO)

Ion Exchange Kinetics of Heavy Metal Ions on Organic–Inorganic Composite Cation Exchanger Poly-o-toluidine Zr(IV) Tungstate

Effect of accompanying ions and ethylenediaminedisuccinic acid on heavy metals sorption using hybrid materials Lewatit FO 36 and Purolite Arsen Xnp

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