Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

Bayramoğlu, Gülay; Arıca, M. Yakup

doi:10.1007/s10967-015-4224-0

Cited by 50 publications

(14 citation statements)

References 44 publications

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“…Under such condition, the beads capacity amounted to~18 mg g −1 with initial concentration of 400 mg L −1 . The maximum adsorption capacity for uranium in literatures are as high as 447 mg g −1 in some recent reports referred earlier [28][29][30]. In our work the resin was used to extract uranium from a very small amount of uranium solution (5 mL) with low concentrations, which restricts it to achieve its maximum capacity.…”

Section: Sorption Isothermsmentioning

confidence: 93%

Synthesis and study of optimization of amidoximated PAN‐DVB‐EGDMA beads for the sorption of uranium from aqueous media

Kanjilal

Singh

Bairwa

et al. 2018

Polymer Engineering & Sci

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Environmental and economic considerations have made the sorption of uranium from aqueous media a very time demanding area of research from last few decades. In this particular work, amidoximated polyacrylonitrile beads were synthesized by the reaction of hydroxyl amine hydrochloride (OH‐NH2.HCl) with macroporous crosslinked polyacrylonitrile beads, prepared through suspension polymerization techniques, using acrylonitrile (AN) as monomer and divinylbenzene and ethyleneglycoldimethacrylate as crosslinkers, in a variety of relative compositions, to modify suitably the hydrophilicity and physicochemical stability. These beads were also characterized by FT‐IR, scanning electron microscope, and thermogravimetric analysis–differential scanning calorimetry techniques to explain the morphology and chemical functionality. The beads reached its saturation capacity towards uranyl ions well within 1 h of equilibration at ~25°C, under near neutral pH conditions and the observed maximum sorption capacity was found to be ~18 mg g−1. The beads were also used for the sorption of uranium from various real water samples and showed good sorption from these samples. Reusability of the beads was also established up to the studied four cycles. These synthesized beads can potentially serve the dual purpose of the decontamination of uranium contaminated potable well water as well as to treat acidic radioactive waste generated in nuclear industry before final discharge to environment. POLYM. ENG. SCI., 59:863–872, 2019. © 2018 Society of Plastics Engineers

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Section: Sorption Isothermsmentioning

confidence: 93%

Synthesis and study of optimization of amidoximated PAN‐DVB‐EGDMA beads for the sorption of uranium from aqueous media

Kanjilal

Singh

Bairwa

et al. 2018

Polymer Engineering & Sci

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“…The results as shown in Figure 4 revealed that the uranium uptake increased (2000-3100 ppm) with the inoculum size increase (2%-10% (V/V)), respectively, and these may be due to the greater availability of exchangeable sites or surface area at higher concentration of biosorbents. Because of this behavior with an increase in biosorbent dosage at a constant initial uranium concentration, the number of active sites available for uranium ions would be more [6]. Also, the bacterial growth increased (0.345-0.411) and the extracellular protein production increased (0.323 -0.400 lg/ml) with the inoculum size increase (2%-10% (V/V)), respectively.…”

Section: Effect Of Inoculum Size On Biosynthesis Of Unps By Mam -U9mentioning

confidence: 99%

“…The values of DG of the biosorption process altered when the temperature increased from 295 to 308 K, it can be deduced that the biosorption process is controlled by physical sorption. The biosorption is spontaneous and endothermic in nature [6].…”

Section: Adsorption Thermodynamicsmentioning

confidence: 99%

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Characterization, kinetics and thermodynamics of biosynthesized uranium nanoparticles (UNPs)

Abo-State

Saleh

Mira

et al. 2017

Artificial Cells, Nanomedicine, and Biotechnology

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The present study was carried out to explore the potential of the isolated bacterial strains isolated from Gabal El Sela in Eastern Dessert, Egypt for biosynthesis of uraninite nanoparticles intracellularly. The most potent bacterial strains associated (intra) with uranium nanoparticles were characterized by transmission electron microscope (TEM), Fourier transform infrared (FTIR) and Energy Dispersive X-ray (EDX). Studying factors affecting biosynthesis of uranium nanoparticles indicated that the optimum conditions were 6000 ppm uranium concentrations at pH 7.0 and temperature 30 °C ± 1 after five days with 10% biomass under shaking conditions and the maximum uranium uptake by MAM - U9 cells was 3300 ppm (55%) from uranyl nitrate solution and 3600 ppm (72%) from Sela rock sample. Results of TEM micrograph show those uranium nanoparticles (UNPs) with size ranging from 2.9 to 21.13 nm inside cells. The kinetics, isotherm and thermodynamics parameters of uranium uptaken by bacterial strain MAM -U9 have been determined and found to be a first order process (R = 9935), follows Langmuir isotherm (R = 0.998) and the thermodynamics of ΔG = -9.715 kJmol, ΔH = 16.987 kJmol and ΔS = 0.0881 kJmolK at 30 °C.

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“…Therefore, the sorption of Cd(II) ions increases (Chunfang et al, 2017, Ofudje et al, 2017. Bayramoglu and Arica (2015) observed that the decrease or increase of biosorption capacity of U(VI) ions at different pH medium can be attributed to the change in surface characteristics of the adsorbent used. It was further noted that the surface characteristics of these adsorbents are composed of different functional groups such as carboxyl, amine, hydroxyl, carbonyl, and phosphate groups and that ion-exchange and electrostatic interactions are mainly responsible for biosorption process.…”

Section: Effects Of Phmentioning

confidence: 99%

Orange Peel As Low-Cost Adsorbent In The Elimination Of Cd(Ii) Ions: Kinetics, Isotherm, Thermodynamic And Optimization Evaluations

Akinhanmi

Ofudje

Adeogun

et al. 2020

Preprint

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The presence of heavy metals in polluted water is known not only to cause stern harm to marine organisms but also to terrestrial plants and animals including human beings. This research applied low-cost and environmental benign adsorbent primed from waste orange peel (OP) for the removal of Cd(II) ions from aqueous solution via batch adsorption process. The surface properties of the orange peel powder were studied using Scanning Electron Microscopy (SEM), X-ray spectroscopy (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR). Operational conditions like temperature, contact time, sorbent dosage, solution pH and initial adsorbate concentration were investigated. The utmost uptake of Cd(II) ion was obtained at a contact time of 120 mins, initial metal concentration of 240 mg/L, adsorbent dosage of 0.04 g/L, temperature of 45 °C and solution pH of 5.5. Equilibrium results showed that the orange peel adsorbent has an adsorption capacity of 128.23 mg/g as obtained from the Langmuir isotherm. The adsorption kinetics data followed a pseudo-first-order kinetic model with correlation coefficient (R2) >0.9 and low standard % error values. The adsorption process was found to be endothermic in nature with enthalpy of 0.0046 kJ mol−1 and entropy of-636.865 Jmol-1K-1 respectively. Results from the optimization study indicated that higher adsorbent dosage and lower Cd(II) ion concentration increased the percentage of Cd (II) ion removal. Thus, orange peel could be used in the removal of Cd(II) ion from aqueous solutions.

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Amidoxime functionalized Trametes trogii pellets for removal of uranium(VI) from aqueous medium

Cited by 50 publications

References 44 publications

Synthesis and study of optimization of amidoximated PAN‐DVB‐EGDMA beads for the sorption of uranium from aqueous media

Synthesis and study of optimization of amidoximated PAN‐DVB‐EGDMA beads for the sorption of uranium from aqueous media

Characterization, kinetics and thermodynamics of biosynthesized uranium nanoparticles (UNPs)

Orange Peel As Low-Cost Adsorbent In The Elimination Of Cd(Ii) Ions: Kinetics, Isotherm, Thermodynamic And Optimization Evaluations

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