Innovative synthesis of modified cellulose derivative as a uranium adsorbent from carbonate solutions of radioactive deposits

Dacrory, Sawsan; Haggag, El Sayed A.; Masoud, Ahmed M.; Abdo, Shaimaa M.; Eliwa, Ahmed A.; Kamel, Samir

doi:10.1007/s10570-020-03272-w

Cited by 41 publications

(16 citation statements)

References 32 publications

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“…This indicates that the organic compounds adsorption from crude dihydrate phosphoric acid using S1, S2, and S3 waste sludge is fitting Freundlich isotherm model which means a heterogeneous sorption system with different active sites. Furthermore, Table 6 shows that n > 1 for the applied three waste sludge sorbents which obvious that the sorption is a physical process (Dacrory et al 2020;Masoud 2020).…”

Section: The Sorption Isothermmentioning

confidence: 90%

New organic compounds detection and potential removal in crude phosphoric acid using waste sludge

Ibrahim

Masoud

Taha

et al. 2021

International Journal of Environmental Analytical Chemistry

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Some organic compounds in phosphoric acid are a potential mediator of adverse environmental impacts on soil. This work aims to detect and reduce the content of organic compounds in crude phosphoric acid using waste sludge, from water treatment plants, as a low-cost sorbent. Gas chromatography/Mass spectrometry (GC/MS) was used to detect the organic species in crude phosphoric acid, while X-ray fluorescence (XRF), X-ray Diffraction (XRD), and Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy were used to characterize waste sludges. Practically, three sludge samples were utilized and different factors including shaking time, sorbent dose, and phosphoric acid concentration were studied.The results of GC/MS revealed that crude phosphoric acid contains bis [tert-butyl(dimethyl)silyl] azelaate, dibutyl phthalate, and 2,6-di-tert-butyl-4-methylphenol as the main organic species. Moreover, the clay content and the surface charge of sludge strongly affect the removal efficiency of organic species. Kinetic analysis using Lagregran pseudo-first-order, pseudo-second-order, Morris-Weber, and Elvoich models display that the sorption process using waste sludges is a chemisorption process. Finally, the three sludge samples exhibit potential sorbents for the clarification of phosphoric acid and sequentially to produce green phosphate fertilizers.

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Section: The Sorption Isothermmentioning

confidence: 90%

New organic compounds detection and potential removal in crude phosphoric acid using waste sludge

Ibrahim

Masoud

Taha

et al. 2021

International Journal of Environmental Analytical Chemistry

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“…In order to analyze adsorption in solid–liquid phase, Lagergren in 1898 offered the pseudo‐first‐order equation. The said Equation given as (Dacrory et al, 2020; Santhi et al, 2016):

\log false(q_{e} ‐ q_{t} false) = \log q_{normale} ‐ t (\frac{k_{1}}{2.303})

where q e is dye adsorbed quantity (mg/g), q t is dye adsorbed quantity at time t (mg/g), and k 1 is first‐order rate constant (min −1 ).…”

Section: Materials and Methodologymentioning

confidence: 99%

“…In order to analyze adsorption in solid-liquid phase, Lagergren in 1898 offered the pseudo-first-order equation. The said Equation 6given as (Dacrory et al, 2020;Santhi et al, 2016):…”

Section: Kinetics Studymentioning

confidence: 99%

Removal of hazardous dye from aqueous media using low‐cost peanut (Arachis hypogaea) shells as adsorbents

Herbert

Kumar

Janardhan

2020

Water Environment Research

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In the present article, an attempt is made for simple, low-cost, and efficient removal of Auramine dye using peanut (Arachis hypogaea) shells as adsorbents. Two different forms of adsorbents distilled water washed peanut shells (DPS) and NaOH treated peanut shells (NPS) were used as adsorbents. Both the adsorbents were studied using BET, pH PZC , FTIR, SEM, TGA, and XRD characterization techniques. Adsorption parameters such as effect of contact time, pH, initial dye concentration, adsorbent dose, and temperature were also assessed. Isotherm analysis at optimum conditions showed Langmuir fitted better with a q m value of 96.15 mg/g for DPS and 294.12 mg/g for NPS; while in kinetic analysis, pseudo-second order was superior. Thermodynamics study stated that adsorption process was endothermic in nature. Overall outcomes establish that the two forms of peanut shells, DPS, and NPS were excellent in removal of Auramine dye and are low cost also as preparation cost of DPS and NPS is 68.73 INR and 106.19 INR per kg, respectively. © 2020 Water Environment Federation • Practitioner points • Removal of Auramine dye from aqueous media using different forms of peanut (Arachis hypogaea) shells as adsorbents is discussed. • q m (Langmuir) using DPS and NPS were found to be 96.15 and 294.12 mg/g, respectively. • Preparation cost of DPS was 68.73 INR per 1 kg, whereas for NPS it was 106.19 INR per 1 kg.

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“…Dubnin-Redushkevich (D-R) isotherm used to identify if the adsorption occurred is physical or chemical in nature, the equilibrium data were applied to the D-R Equation [53]. The linearized form of the D-R model is assumed as Equation ( 18), ln q e = ln q m − βε 2 (18) where β is the activity coefficient related to mean adsorption energy (mol 2 /J 2 ) and ɛ is the Polanyi potential.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Kinetic studies on the adsorption of uranium on a mesoporous impregnated activated carbon

et al. 2020

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A highly porous phosphorous-containing activated carbon derived from pistachio nutshells (PNS) was synthesis as a potential sorbent for uranium (VI) from sulfate media. The prepared phosphate activated carbon (PAC) was visualized under SEM and TEM which revealed a highly porous structure. The extraction of U(VI) from acidic media using PAC was investigated by a batch method and various parameters such as pH, equilibrium contact time, liquid to solid ratio, and initial U(VI) concentration were examined. Under the stated conditions, the optimum pH for U(VI) adsorption was found to be 3.5. The adsorption capacity of uranium upon PAC under the optimum conditions was found to be 335 mg/g. The experimental results were applied for Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R) isotherm models. The thermodynamic equilibrium constant and the Gibbs free energy were determined (ΔG° from -4.72 to -7.65 kJ/mol) and results indicated the spontaneous nature of the adsorption process. Kinetics data were best described by pseudo second-order model.

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Innovative synthesis of modified cellulose derivative as a uranium adsorbent from carbonate solutions of radioactive deposits

Cited by 41 publications

References 32 publications

New organic compounds detection and potential removal in crude phosphoric acid using waste sludge

New organic compounds detection and potential removal in crude phosphoric acid using waste sludge

Removal of hazardous dye from aqueous media using low‐cost peanut (Arachis hypogaea) shells as adsorbents

Kinetic studies on the adsorption of uranium on a mesoporous impregnated activated carbon

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