Surface Engineering of PAMAM-SDB Chelating Resin with Diglycolamic Acid (DGA) Functional Group for Efficient Sorption of U(VI) and Th(IV) from Aqueous Medium

Ilaiyaraja, P.; Deb, Ashish Kumar Singha; Ponraju, D.; Ali, Sk. Musharaf; Venkatraman, B.

doi:10.1016/j.jhazmat.2017.01.001

Cited by 66 publications

(27 citation statements)

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“…The magnitude of activation energy gives information about the type of adsorption, which is physical or chemical adsorption. The physisorption processes usually have activation energies in the range of 0-40 kJ/mol, while higher activation energies (40-800 kJ/ mol) suggest chemisorptions and Ilaiyaraja et al, 2017. The obtained value of activation energy is less than 40 kJ/mol (6.698 kJ/mol for U(VI) indicates that physiorption of U(VI) onto AIR resin.…”

Section: (9)mentioning

confidence: 89%

“…The negative value of ΔS indicates a decrease in the randomness at the solid/solution interface during the sorption of uranium ions onto the sorbent. Randomness arises due to the destruction of hydration shell of U(VI) species prior to adsorption Ilaiyaraja et al, 2017 andIngelezakis et al, 2006). Practically, by regarding to Figs (13&19) this system is limited to spontaneous regime as shown on Fig (13).…”

Section: Thermodynamic Characteristicsmentioning

confidence: 99%

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Uranium Removal From Nitrate Solution by Cation Exchange Resin (Amberlite Ir 120), Adsorption and Kinetic Characteristics

Gawad

2019

Nuclear Sciences Scientific Journal

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The present work aims to study the adsorption behavior of uranium ions from nitrate solutions using the strong acid cation exchange Amberlite IR120 resin. Batch shaking sorption experiments are carried out to evaluate the performance of the studied resin in the uranium adsorption. The adsorption parameters including contact time, pH, initial uranium concentration and temperature have been optimized. The physical parameters including the adsorption kinetics, the isotherm models and the thermodynamic data have also been determined to describe the nature of the uranium adsorption by the investigated resin. The modellated data has been found to agree with both the exothermic pseudo first order reaction and the Langmuir isotherm. The applied procedure was used for uranium ions removal from scrub and raffinate liquors.

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Section: (9)mentioning

confidence: 89%

Section: Thermodynamic Characteristicsmentioning

confidence: 99%

Uranium Removal From Nitrate Solution by Cation Exchange Resin (Amberlite Ir 120), Adsorption and Kinetic Characteristics

Gawad

2019

Nuclear Sciences Scientific Journal

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“…Various methods, such as chemical precipitation, ion exchange, electrochemical methods, reverse osmosis and adsorption, have been proposed to remove heavy metal ions from water bodies. Among these technologies, the adsorption method using chelating resins has drawn much attention because chelating resins have high adsorption capacity, high efficiency and reusability . Chelating resins can be prepared both through the polymerization of conventional chelating monomers and functionlization modification of polymers.…”

Section: Introductionmentioning

confidence: 99%

“…Among these technologies, the adsorption method using chelating resins has drawn much attention because chelating resins have high adsorption capacity, high efficiency and reusability. [9][10][11] Chelating resins can be prepared both through the polymerization of conventional chelating monomers and functionlization modification of polymers. Glycidyl methacrylate (GMA) is a commercial and cheaper monomer, whose molecule contains an epoxy group.…”

Section: Introductionmentioning

confidence: 99%

Microfiltration membrane possessing chelation function and its adsorption and rejection properties towards heavy metal ions

Gao

Men

2019

J of Chemical Tech & Biotech

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Background Removing toxic heavy metal ions from water bodies is one of the most important areas of water treatment, and using porous membranes with a chelating function is a good route for this. Graft‐type porous membranes with a chelating function are innovate functional membranes. In this work, the main aims are to prepare such a functional membrane and evaluate its adsorption and rejection properties for heavy metal ions in water through adsorption isotherm experiments and permeation experiments. Results Glycidyl methacrylate (GMA) was graft‐polymerized on the surface of polysulfone (PSF) microfiltration membrane through a surface initiating system, getting the grafted membrane PSF‐g‐PGMA. Then the ring‐opening reaction of the epoxy group of the grafted PGMA was carried out with iminodiacetic acid (IDAA) as reagent, obtaining PSF‐g‐PGMA/IDAA membrane, on which a great deal of IDAA as chelating ligand was bonded. PSF‐g‐PGMA/IDAA membrane possesses a strong adsorption ability towards heavy metal ions via the chelating action and electrostatic interaction. The order of adsorption capacity was Pb2+>Cu2+>Cd2+, and the adsorption capacity of Pb2+ ion reached 4.5 µmol cm−2. When an injection filter with a membrane area of 1.77 cm2 was used, the rejection rate of PSF‐g‐PGMA/IDAA membrane for the three heavy metal ions with concentrations of 0.1 mmol L−1 were maintained at a level of 95% until the permeation solution volume reached 100 mL. Conclusion The grafted microfiltration membrane PSF‐g‐PGMA/IDAA can be easily prepared and possesses excellent rejection and removing performance towards heavy metal ions © 2018 Society of Chemical Industry

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“…Various adsorbents have been used in the practice of water purification for U(VI) entrapment, such as hydroxyapatite [7], graphene oxide [4], silica [8], carbonaceous nanofibers [9], resin [10], etc. Among them, bentonite (BT) seems to be one of the most prospective adsorbents taking into account its ability for U(VI) removal from U(VI)contaminated solutions, due to its considerable ion-exchange properties, good retardation properties, expansive performance and low cost [11].…”

Section: Introductionmentioning

confidence: 99%

Plasma-induced grafting of acrylic acid on bentonite for the removal of U(VI) from aqueous solution

Zhu

Duan

Chen

et al. 2017

Plasma Sci. Technol.

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Fabrication of reusable adsorbents with satisfactory adsorption capacity and using environmentfriendly preparation processes is required for the environment-related applications. In this study, acrylic acid (AA) was grafted onto bentonite (BT) to generate an AA-graft-BT (AA-g-BT) composite using a plasma-induced grafting technique considered to be an environment-friendly method. The as-prepared composite was characterized by scanning electron microscopy, x-ray powder diffraction, thermal gravity analysis, Fourier transform infrared spectroscopy and Barrett-Emmett-Teller analysis, demonstrating the successful grafting of AA onto BT. In addition, the removal of uranium(VI) (U(VI)) from contaminated aqueous solutions was examined using the as-prepared composite. The influencing factors, including contact time, pH value, ionic strength, temperature, and initial concentration, for the removal of U(VI) were investigated by batch experiments. The experimental process fitted best with the pseudo-secondorder kinetic and the Langmuir models. Moreover, thermodynamic investigation revealed a spontaneous and endothermic process. Compared with previous adsorbents, AA-g-BT has potential practical applications in treating U(VI)-contaminated solutions.

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Surface Engineering of PAMAM-SDB Chelating Resin with Diglycolamic Acid (DGA) Functional Group for Efficient Sorption of U(VI) and Th(IV) from Aqueous Medium

Cited by 66 publications

References 65 publications

Uranium Removal From Nitrate Solution by Cation Exchange Resin (Amberlite Ir 120), Adsorption and Kinetic Characteristics

Uranium Removal From Nitrate Solution by Cation Exchange Resin (Amberlite Ir 120), Adsorption and Kinetic Characteristics

Microfiltration membrane possessing chelation function and its adsorption and rejection properties towards heavy metal ions

Plasma-induced grafting of acrylic acid on bentonite for the removal of U(VI) from aqueous solution

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