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Zahakifar F, Dashtinejad M, Sepehrian H, Samadfam M, Fasihi J, Yadollahi A. Intensification of Cr(VI) adsorption using activated carbon adsorbent modified with ammonium persulfate. Sci Rep 2024; 14:16949. [PMID: 39043864 PMCID: PMC11266575 DOI: 10.1038/s41598-024-68105-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 07/19/2024] [Indexed: 07/25/2024] Open
Abstract
Granular activated carbon has been modified by ammonium persulfate as a new adsorbent for Cr(VI) adsorption from aqueous solutions. The adsorbent was characterized by nitrogen adsorption-desorption isotherm data and infrared spectroscopy. The impact of different factors, such as the initial pH level of the solution, time, temperature, ionic strength, and initial concentration of the Cr(VI) ion, on the adsorption efficiencies of the adsorbent has been studied by batch experiments. Kinetic studies and the adsorption thermodynamics of Cr(VI) with ammonium persulfate-modified activated carbon adsorbent were carefully studied. The results showed that the Cr(VI) adsorption follows a pseudo-second-order kinetic model and the adsorption reaction is endothermic and spontaneous. The adsorption isotherm was scrutinized, and the fitting results showed that the Langmuir model could well represent the adsorption process. The maximum adsorption capacity of Cr(VI) onto persulfate-modified activated carbon was 108.69 mg g-1. The research results showed that using persulfate-modified activated carbon adsorbent can greatly remove Cr(VI) from aqueous solutions.
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Affiliation(s)
- Fazel Zahakifar
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran
| | - Maryam Dashtinejad
- Department of Energy Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
| | - Hamid Sepehrian
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran.
| | - Mohammad Samadfam
- Department of Energy Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
| | - Javad Fasihi
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran
| | - Ali Yadollahi
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P. O. Box 11365/8486, Tehran, Iran
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Zahakifar F, Khanramaki F. Continuous removal of thorium from aqueous solution using functionalized graphene oxide: study of adsorption kinetics in batch system and fixed bed column. Sci Rep 2024; 14:14888. [PMID: 38937613 PMCID: PMC11211423 DOI: 10.1038/s41598-024-65709-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024] Open
Abstract
This article investigated the kinetic studies of thorium adsorption from an aqueous solution with graphene oxide functionalized with aminomethyl phosphonic acid (AMPA) as an adsorbent. First, the AMPA-GO adsorbent was characterized using TEM, XRD, and FTIR methods. Experiments were performed in two batch and continuous modes. In batch mode, adsorption kinetics were studied in different pH (1-4), temperature (298-328 K), initial concentration (50-500 mg L-1), and dosages (0.1-2 g L-1). The results showed that thorium adsorption kinetic follows pseudo-first-order kinetic model and that the adsorption reaction is endothermic. The maximum experimental adsorption capacity of thorium ions was observed 138.84 mg g-1 at a pH of 3, adsorbent dosage of 0.5 g L-1, and a temperature of 328 K. The results showed that AMPA-GO adsorbent can be used seven times with an acceptable change in adsorption capacity. In continuous conditions, the effect of feed flow rate (2-8 mL min-1), initial concentration (50-500 mg L-1), and column bed height (2-8 cm) was investigated. The continuous data was analyzed using the Thomas, Yoon-Nelson, and Bohart-Adams models. The experimental data of the column were well matched with the Thomas, and Yoon-Nelson models. The research results showed that the use of functionalized graphene oxide adsorbents has a great ability to remove thorium from aqueous solutions.
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Affiliation(s)
- Fazel Zahakifar
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, P.O. Box: 11365-8486, Tehran, Iran.
| | - Fereshte Khanramaki
- Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, P.O. Box: 11365-8486, Tehran, Iran
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Man GT, Albu PC, Nechifor AC, Grosu AR, Tanczos SK, Grosu VA, Ioan MR, Nechifor G. Thorium Removal, Recovery and Recycling: A Membrane Challenge for Urban Mining. MEMBRANES 2023; 13:765. [PMID: 37755188 PMCID: PMC10538078 DOI: 10.3390/membranes13090765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/16/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023]
Abstract
Although only a slightly radioactive element, thorium is considered extremely toxic because its various species, which reach the environment, can constitute an important problem for the health of the population. The present paper aims to expand the possibilities of using membrane processes in the removal, recovery and recycling of thorium from industrial residues reaching municipal waste-processing platforms. The paper includes a short introduction on the interest shown in this element, a weak radioactive metal, followed by highlighting some common (domestic) uses. In a distinct but concise section, the bio-medical impact of thorium is presented. The classic technologies for obtaining thorium are concentrated in a single schema, and the speciation of thorium is presented with an emphasis on the formation of hydroxo-complexes and complexes with common organic reagents. The determination of thorium is highlighted on the basis of its radioactivity, but especially through methods that call for extraction followed by an established electrochemical, spectral or chromatographic method. Membrane processes are presented based on the electrochemical potential difference, including barro-membrane processes, electrodialysis, liquid membranes and hybrid processes. A separate sub-chapter is devoted to proposals and recommendations for the use of membranes in order to achieve some progress in urban mining for the valorization of thorium.
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Affiliation(s)
- Geani Teodor Man
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (G.T.M.); (A.C.N.); (A.R.G.)
- National Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI, 240050 Râmnicu Valcea, Romania
| | - Paul Constantin Albu
- Radioisotopes and Radiation Metrology Department (DRMR), IFIN Horia Hulubei, 023465 Măgurele, Romania; (P.C.A.); (M.-R.I.)
| | - Aurelia Cristina Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (G.T.M.); (A.C.N.); (A.R.G.)
| | - Alexandra Raluca Grosu
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (G.T.M.); (A.C.N.); (A.R.G.)
| | - Szidonia-Katalin Tanczos
- Department of Bioengineering, University Sapientia of Miercurea-Ciuc, 500104 Miercurea Ciuc, Romania;
| | - Vlad-Alexandru Grosu
- Department of Electronic Technology and Reliability, Faculty of Electronics, Telecommunications and Information Technology, University Politehnica of Bucharest, 061071 Bucharest, Romania
| | - Mihail-Răzvan Ioan
- Radioisotopes and Radiation Metrology Department (DRMR), IFIN Horia Hulubei, 023465 Măgurele, Romania; (P.C.A.); (M.-R.I.)
| | - Gheorghe Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (G.T.M.); (A.C.N.); (A.R.G.)
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Removal of Co(II) from Aqueous Solutions with Amino Acid-Modified Hydrophilic Metal-Organic Frameworks. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Hamza MF, Guibal E, Althumayri K, Vincent T, Yin X, Wei Y, Li W. New Process for the Sulfonation of Algal/PEI Biosorbent for Enhancing Sr(II) Removal from Aqueous Solutions-Application to Seawater. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27207128. [PMID: 36296719 PMCID: PMC9611074 DOI: 10.3390/molecules27207128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 01/24/2023]
Abstract
Sulfonic resins are highly efficient cation exchangers widely used for metal removal from aqueous solutions. Herein, a new sulfonation process is designed for the sulfonation of algal/PEI composite (A*PEI, by reaction with 2-propylene-1-sulfonic acid and hydroxylamine-O-sulfonic acid). The new sulfonated functionalized sorbent (SA*PEI) is successfully tested in batch systems for strontium recovery first in synthetic solutions before investigating with multi-component solutions and final validation with seawater samples. The chemical modification of A*PEI triples the sorption capacity for Sr(II) at pH 4 with a removal rate of up to 7% and 58% for A*PEI and SA*PEI, respectively (with SD: 0.67 g L-1). FTIR shows the strong contribution of sulfonate groups for the functionalized sorbent (in addition to amine and carboxylic groups from the support). The sorption is endothermic (increase in sorption with temperature). The sulfonation improves thermal stability and slightly enhances textural properties. This may explain the fast kinetics (which are controlled by the pseudo-first-order rate equation). The sulfonated sorbent shows a remarkable preference for Sr(II) over competitor mono-, di-, and tri-valent metal cations. Sorption properties are weakly influenced by the excess of NaCl; this can explain the outstanding sorption properties in the treatment of seawater samples. In addition, the sulfonated sorbent shows excellent stability at recycling (for at least 5 cycles), with a loss in capacity of around 2.2%. These preliminary results show the remarkable efficiency of the sorbent for Sr(II) removal from complex solutions (this could open perspectives for the treatment of contaminated seawater samples).
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Affiliation(s)
- Mohammed F. Hamza
- School of Nuclear Science and Technology, University of South China, HengYang 421001, China
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo 4710030, Egypt
| | - Eric Guibal
- Polymers Composites and Hybrids, IMT—Mines Ales, F-30360 Ales, France
- Correspondence: (E.G.); (W.L.); Tel.: +33-0-466782734 (E.G.); +86-18845568076 (W.L.)
| | - Khalid Althumayri
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia
| | - Thierry Vincent
- Polymers Composites and Hybrids, IMT—Mines Ales, F-30360 Ales, France
| | - Xiangbiao Yin
- School of Nuclear Science and Technology, University of South China, HengYang 421001, China
| | - Yuezhou Wei
- School of Nuclear Science and Technology, University of South China, HengYang 421001, China
| | - Wenlong Li
- School of Nuclear Science and Technology, University of South China, HengYang 421001, China
- Correspondence: (E.G.); (W.L.); Tel.: +33-0-466782734 (E.G.); +86-18845568076 (W.L.)
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Adsorption performance of sulfonamide-modified metal–organic frameworks (MOFs) for Co(II) in aqueous solution. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08426-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Zhou Y, Wang X, Men J, Jia M, Liang C. Study on the adsorption performance of zeolitic imidazolate framework-8 (ZIF-8) for Co2+ and Mn2+. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-021-08186-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Doram A, Outokesh M, Ahmadi SJ, Zahakifar F. Synthesis of “(aminomethyl)phosphonic acid-functionalized graphene oxide”, and comparison of its adsorption properties for thorium(IV) ion, with plain graphene oxide. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-1090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The current study presents a simple and scalable method for the synthesis of (aminomethyl)phosphonic acid-functionalized graphene oxide (AMPA-GO) adsorbent. The chemical structure of the new material was disclosed by different instrumental analyses (e.g. FTIR, Raman, XPS, AFM, TEM, XRD, CHN, and UV), and two pertinent mechanisms namely nucleophilic substitution and condensation were suggested for its formation. Adsorption experiments revealed that both AMPA-GO and plain GO have a high affinity toward Th(IV) ions, but the AMPA-GO is superior in terms of adsorption capacity, rate of adsorption, selectivity, pH effect, etc. Indeed, the AMPA-GO can uptake Th(IV) nearly instantaneously, and coexisting Na+ ions have no effect on its adsorption. Thanks to Langmuir isotherm, the maximum adsorption capacities of the GO and AMPA-GO were obtained 151.06 and 178.67 mg g−1, respectively. Interestingly, GO and AMPA-GO both showed a higher preference for thorium over uranium so that the average “K
d
(Th)/K
d
(U)” for them was 52 and 44, respectively. This data suggests that chromatographic separation of thorium and uranium is feasible by these adsorbents.
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Affiliation(s)
- Amir Doram
- Department of Energy Engineering , Sharif University of Technology , P.O. Box 11365-8639 , Tehran , Iran
| | - Mohammad Outokesh
- Department of Energy Engineering , Sharif University of Technology , P.O. Box 11365-8639 , Tehran , Iran
| | - Seyed Javad Ahmadi
- Nuclear Fuel Cycle Research School , Nuclear Science and Technology Research Institute , AEOI, P.O. Box: 11365-8486 Tehran , Iran
| | - Fazel Zahakifar
- Nuclear Fuel Cycle Research School , Nuclear Science and Technology Research Institute , AEOI, P.O. Box: 11365-8486 Tehran , Iran
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Performance and mechanism for U(VI) adsorption in aqueous solutions with amino-modified UiO-66. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07968-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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