Removal of Pb(II) ions from aqueous solutions using hybrid organic–inorganic composite material: Zr(IV) iodosulphosalicylate

Rashid, Mohd; Khan, Farheen; Lutfullah,

doi:10.1016/j.jwpe.2014.07.003

Cited by 15 publications

(12 citation statements)

References 39 publications

(29 reference statements)

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“…The selectivity coefficients determined by the mixed solution method revealed that this material was selective for Hg (II) in the presence of other interfering cations and hence, Hg (II) ion selective membrane electrode was prepared using this composite cation-exchanger as the electroactive material. The cation exchanger composite, zirconium(IV) iodosulphosalicylate 53 was synthesized and characterized by XRD and SEM analysis. The material was employed for the fabrication of Pb (II) ion selective electrode with a detection limit of 4.78 µM and life span of 90 days.…”

Section: Nanocomposite Ion Exchangersmentioning

confidence: 99%

Developments in Synthesis, Characterization and Applications of Composite Ion-exchange Materials: A Review

Kaushal¹,

Mittal²,

Singh³

2017

Orient. J. Chem

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In this article, a review of hybrid inorganic-organic composite ion exchangers employed as ion sensors, photocatalysts, anti-microbial agents and in water remediation has been carried out. A detailed study of the synthetic procedures, characterization of various composite ion exchangers by different analytical techniques, ion exchange characteristics and their applications has been provided. The applications of the composite ion exchangers in the separation of metal ions, as ion selective electrodes, as photocatalysts in dye degradation and as antimicrobial agents have been reviewed extensively.

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Section: Nanocomposite Ion Exchangersmentioning

confidence: 99%

Developments in Synthesis, Characterization and Applications of Composite Ion-exchange Materials: A Review

Kaushal¹,

Mittal²,

Singh³

2017

Orient. J. Chem

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“…The pseudo‐second‐order adsorption kinetic model is based on the adsorption capacity of the solid phase which would be selected to apply in this work. The pseudo‐second‐order equation is expressed as follow:

true \frac{d q}{d t} = k_{2} {(q_{e} - q)}^{2}

…”

Section: Kinetic Modelmentioning

confidence: 99%

Preconcentration and Separation of Rubidium from Salt Lake Brine by Ammonium Phosphomolybdate - Polyacrylonitrile (AMP-PAN) Composite Adsorbent

et al. 2017

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In this study, a novel composite adsorbent of ammonium phosphomolybdate – polyacrylonitrile (AMP–PAN) was prepared for sensitive and selective preconcentration and separation of rubidium (Rb(I)) ion from salt lake brine. Several experimental parameters, such as pH value, shaking time, concentration, interference ions, regeneration, stability and reusability were systematically investigated. The experimental results clarified that the Rb(I) ion was adsorbed by the adsorbent of AMP‐PAN at pH 7. Under optimum condition, the maximum sorption capacity for Rb(I) ion by the adsorbent was 500 mg g−1 based on the Langmuir adsorption isotherm study. The adsorption equilibrium was achieved within 2 h. The presence of co‐existing ions did not interfere with Rb(I) adsorption, indicating the high selectivity toward Rb(I) ion. The desorption results demonstrated that Rb(I) ion adsorbed the composite adsorbent of AMP‐PAN could be effectively desorbed by 0.5 mol L−1 NH4Cl and regenerated into the initial form without significant deterioration in its original functionality at the same time, which exhibited good stability of the adsorbent. Therefore, the proposed adsorbent of AMP‐PAN allowed the sensitive, selective, easy to use, cost‐effective, high efficiency, fast kinetics, stable and reusability preconcentation and separation of Rb(I) ion even in the presence of competing ions. As a consequence, the AMP‐PAN adsorbent can be used potentially to preconcentration and separation of Rb(I) ion from water samples in a wide range of practical applications for extracting Rb(I) ion in environmental aqueous resources.

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“…ln q e 5ln Q D 2be 2 (5) where b (mg 2 /kJ 2 ) is a constant related to the mean free energy of adsorption. Q D (mg/g) is the theoretical saturation capacity and e is the Polanyi potential, which is equal to e52RT lnð111 =C e Þ where R (R 58.314 J/mol/K) is the gas constant and T (K) is the absolute temperature.…”

Section: Adsorption Isothermmentioning

confidence: 99%

Fabrication of a copolymer flocculant and application for Cr(VI) removal

You

Song

et al. 2016

Polymer Engineering & Sci

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A copolymer flocculant (CATCS) derived from starch and chitosan was fabricated and used as eco‐friendly adsorbent for removal of Cr(VI) from aqueous solution. The CATCS flocculant was characterized by scanning electron microscope, thermogravimetic analysis, and Fourier transform infrared spectroscopy. The effects of CATCS dosage, initial Cr(VI) concentration, pH, and reaction time on removal of Cr(VI) were discussed. The results showed CATCS removed Cr(VI) effectively and the adsorption isotherm agreed well with the Freundlich isotherm and R–P isotherm models. The enthalpy change (ΔH) of the process was 16.75 kJ/mol suggesting the existence of chemisorption and the reaction was endothermic. Moreover, the negative free energy change (ΔG) indicated the adsorption process was feasible and spontaneous. The positive entropy change (ΔS) showed there was an increase of disorder in the system during the adsorption process. The adsorption kinetics results showed that the adsorption could be described by the pseudo‐second‐order kinetics mechanism. The activation energy (Ea) of the adsorption reaction was 29.16 kJ/mol. POLYM. ENG. SCI., 56:1213–1220, 2016. © 2016 Society of Plastics Engineers

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Removal of Pb(II) ions from aqueous solutions using hybrid organic–inorganic composite material: Zr(IV) iodosulphosalicylate

Cited by 15 publications

References 39 publications

Developments in Synthesis, Characterization and Applications of Composite Ion-exchange Materials: A Review

Developments in Synthesis, Characterization and Applications of Composite Ion-exchange Materials: A Review

Preconcentration and Separation of Rubidium from Salt Lake Brine by Ammonium Phosphomolybdate - Polyacrylonitrile (AMP-PAN) Composite Adsorbent

Fabrication of a copolymer flocculant and application for Cr(VI) removal

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