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Zhao L, Wang S, Wang G, Cai L, Sun L, Qiu J. Phosphorus Nitride Imide Nanotubes for Uranium Capture from Seawater. ACS NANO 2024; 18:11804-11812. [PMID: 38650374 DOI: 10.1021/acsnano.4c00344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Nuclear power plays a pivotal role in the global energy supply. The adsorption-based extraction of uranium from seawater is crucial for the rapid advancement of nuclear power. The phosphorus nitride imide (PN) nanotubes were synthesized in this study using a solvothermal method, resulting in chemically stable cross-linked tubular hollow structures that draw inspiration from the intricate snowflake fractal pattern. Detailed characterization showed that these nanotubes possess a uniformly distributed five-coordinated nanopocket, which exhibited great selectivity and efficiency in binding uranium. PN nanotubes captured 97.34% uranium from the low U-spiked natural seawater (∼355 μg L-1) and showed a high adsorption capacity (435.58 mg g-1), along with a distribution coefficient, KdU > 8.71 × 107 mL g-1. In addition, PN nanotubes showed a high adsorption capacity of 7.01 mg g-1 in natural seawater. The facile and scalable production of PN nanotubes presented in this study holds implications for advancing their large-scale implementation in the selective extraction of uranium from seawater.
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Affiliation(s)
- Lin Zhao
- School of Environment and Civil Engineering, Dongguan University of Technology, Guangdong 523106, Dongguan, China
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shiyong Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Guangdong 523106, Dongguan, China
| | - Gang Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Guangdong 523106, Dongguan, China
- Guangdong Provincial Key Laboratory of Intelligent Disaster Prevention and Emergency Technologies for Urban Lifeline Engineering, Guangdong 523106, Dongguan, China
| | - Lirong Cai
- School of Environment and Civil Engineering, Dongguan University of Technology, Guangdong 523106, Dongguan, China
| | - Lingna Sun
- College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jieshan Qiu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Liu Y, Ni S, Wang W, Rong M, Cai H, Xing H, Yang L. Functionalized hydrogen-bonded organic superstructures via molecular self-assembly for enhanced uranium extraction. JOURNAL OF HAZARDOUS MATERIALS 2024; 464:133002. [PMID: 37988939 DOI: 10.1016/j.jhazmat.2023.133002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/23/2023] [Accepted: 11/11/2023] [Indexed: 11/23/2023]
Abstract
Effective uranium extraction from water is essential for the development of nuclear power industry and the protection of human health and environment. Nevertheless, it still remains challenging to realize efficient and cost-effective uranium extraction. Herein, a fast and simple method for the direct fabrication of novel functionalized hydrogen-bonded organic superstructures via molecular self-assembly is reported. The as-constructed flower-like superstructures (MCP-5) can allow the exposure of adsorption sites and facilitate the transport of uranyl ions, while synergism between amino and phosphate groups can realize selective uranium extraction. Consequently, MCP-5 possesses excellent uranium adsorption ability with a high saturated adsorption capacity of 950.52 mg g-1, high utilization rate of adsorption sites and adsorption equilibrium time of simply 5 min in uranium-spiked aqueous solution. Furthermore, MCP-5 offers selective uranium adsorption over a broad range of metal ions. The facile synthesis and low-cost raw materials make it have promising potential for uranium capture. Simultaneously, this study opens a design avenue of functionalized hydrogen-bonded organic material for efficient uranium extraction.
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Affiliation(s)
- Yafeng Liu
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, State Key Laboratory of Biochemical Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shan Ni
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, State Key Laboratory of Biochemical Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
| | - Wenjie Wang
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, State Key Laboratory of Biochemical Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meng Rong
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, State Key Laboratory of Biochemical Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Hui Cai
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, State Key Laboratory of Biochemical Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huifang Xing
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, State Key Laboratory of Biochemical Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liangrong Yang
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, State Key Laboratory of Biochemical Engineering, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
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Eissa ME, Sakr AK, Hanfi MY, Sayyed MI, Al-Otaibi JS, Abdel-Lateef AM, Cheira MF, Abdelmonem HA. Physicochemical investigation of mercury sorption on mesoporous thioacetamide/chitosan from wastewater. CHEMOSPHERE 2023; 341:140062. [PMID: 37689155 DOI: 10.1016/j.chemosphere.2023.140062] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/24/2023] [Accepted: 09/02/2023] [Indexed: 09/11/2023]
Abstract
Mercury is a toxic environmental element, so it was necessary to prepare a new, highly efficient, cheap sorbent to remove it. A mesoporous thioacetamide/chitosan (MTA/CS) was manufactured via a simplistic strategy; the chitin deacetylation to gain chitosan (CS) and the addition of thioacetamide. The as-prepared MTA/CS was characterized using X-ray diffraction, EDX, SEM, FTIR, and BET surface analysis. According to the findings, the MTA/CS was effectively synthesized. The removal behaviors of Hg2+ onto MTA/CS composite were inspected, which suggested that the MTA/CS composite exhibited great sorption properties for Hg2+ in liquid solutions. The maximal Hg2+ sorption capacity was 195 mg/g. The effects of temperature, Hg2+ concentration, contacting time, and MTA/CS concentration on sorption were analyzed. The 2nd-order model and Langmuir isotherm were suitable for the physicochemical adsorption processes. Thermodynamic analysis showed that the Hg2+ adsorption process onto the MTA/CS composite is exothermic and occurred spontaneously. The desorption condition of Hg2+ from its loaded MTA/CS was also gained. Likewise, the MTA/CS sorbent was undoubtedly regenerated by 0.8 M NaNO3 80 min contacting and 1:50 S:L ratio. The versatility and durability of MTA/CS sorbent were investigated via nine sorption-extraction cycles. The optimum parameters were applied to wastewater. Based on the result, the as-prepared MTA/CS might be a potential sorbent for removing Hg2+ from liquid solutions.
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Affiliation(s)
- Mohamed E Eissa
- College of Science, Chemistry Department, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Kingdom of Saudi Arabia
| | - Ahmed K Sakr
- Department of Civil and Environmental Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI, 48202, USA.
| | - Mohamed Y Hanfi
- Ural Federal University, St. Mira, 19, 620002, Yekaterinburg, Russia; Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt
| | - M I Sayyed
- Department of Physics, Faculty of Science, Isra University, Amman, 11622, Jordan; Department of Nuclear Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University (IAU), P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Ashraf M Abdel-Lateef
- Accelerations and Ion Sources Department, Central Laboratory for Elemental and Isotopic Analysis, NRC, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
| | - Mohamed F Cheira
- Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt.
| | - Haeam A Abdelmonem
- Chemistry Department, Faculty of Women for Art, Science, And Education, Ain Shams University, Heliopolis, Cairo, 11757, Egypt
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Rashed MN, Arifien AE, El-Dowy FA. Preparation and characterization of nanomuscovite by intercalation method for adsorption of heavy metals from polluted water. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:5127-5144. [PMID: 37074498 PMCID: PMC10310564 DOI: 10.1007/s10653-023-01545-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 03/15/2023] [Indexed: 05/03/2023]
Abstract
In this study, nanomuscovite adsorbents were prepared by intercalation with various organic intercalates (DTAB-TTAB-DTPA-PA-PN) and used to remove Cd2+ and Pb2+ from polluted water. The best nanomuscovite was prepared using DTPA and muscovite (Muc/DTPA) and characterized by XRD, TEM, EDX, FTIR, and BET surface area. The developed nanoadsorbent was used to remove Cd2+ and Pb2+ from polluted water. The effect of various factors, including contact time, adsorbent dosage, solution pH, and temperature, was investigated. The results reveal that the maximum adsorption of Cd2+ and Pb2+ was 91.5% and 97%, respectively, at the initial metal concentration 50 ppm, adsorbent dosage 0.2 g, contact time 60 min, solution temperature 25 °C, and pH 6 for Pb2+ and pH 7 for Cd2+. Adsorption isotherm models (Freundlich, Langmuir, Dubunin-Radushkevich, and Temkin isotherm models) as well as kinetic models (pseudo-first-order, pseudo-second-order, Elovich, and intra-particle diffusion models) were employed to evaluate the experimental results. The adsorption of Cd2+ and Pb2+ on Muc/DTPA fitted well within the Langmuir isotherm model and followed pseudo-second-order kinetics. Thermodynamics parameters of metal adsorption indicated exothermic and spontaneous processes. Results were applied to the real wastewater that showed high Cd2+ and Pb2+ removal.
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Affiliation(s)
- M Nageeb Rashed
- Chemistry Department, Faculty of Science, Aswan University, Qism Aswan, Egypt.
| | - A E Arifien
- Chemistry Department, Faculty of Science, Aswan University, Qism Aswan, Egypt
| | - F A El-Dowy
- Chemistry Department, Faculty of Science, Aswan University, Qism Aswan, Egypt
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Al-Mhyawi SR, Bader D, Bajaber MA, El Dayem SMA, Ragab AH, Abd El-Rahem KA, Gado MA, Atia BM, Cheira MF. Zirconium oxide with graphene oxide anchoring for improved heavy metal ions adsorption: Isotherm and kinetic study. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY 2023; 22:3058-3074. [DOI: 10.1016/j.jmrt.2022.11.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Negm SH, Abd El-Magied MO, El Maadawy WM, Abdel Aal MM, Abd El Dayem SM, Taher MA, Abd El-Rahem KA, Rashed MN, Cheira MF. Appreciatively Efficient Sorption Achievement to U(VI) from the El Sela Area by ZrO2/Chitosan. SEPARATIONS 2022; 9:311. [DOI: 10.3390/separations9100311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
The need to get uranium out of leaching liquid is pushing scientists to come up with new sorbents. This study uses the wet technique to improve the U(VI) sorption properties of ZrO2/chitosan composite sorbent. To validate the synthesis of ZrO2/CS composite with Zirconyl-OH, -NH, and -NH2 for U(VI) binding, XRD, FTIR, SEM, EDX, and BET are used to describe the ZrO2/chitosan wholly formed. To get El Sela leaching liquid, it used 150 g/L H2SO4, 1:4 S:L ratio, 200 rpm agitation speed, four hours of leaching period, and particle size 149–100 µm. In a batch study, the sorption parameters are evaluated at pH 3.5, 50 min of sorbing time, 50 mL of leaching liquid (200 mg/L U(VI)), and 25 °C. The sorption capability is 175 mg/g. Reusing ZrO2/CS for seven cycles with a slight drop in performance is highly efficient, with U(VI) desorption using 0.8 M acid and 75 min of desorption time. The selective U(VI) recovery from El Sela leachate was made possible using ZrO2/CS. Sodium diuranate was precipitated and yielded a yellow cake with a purity level of 94.88%.
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Bahsaine K, Mekhzoum MEM, Benzeid H, Qaiss AEK, Bouhfid R. Recent Progress in Heavy Metals Extraction From Phosphoric Acid: A Short Review. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Allam EM, Lashen TA, Abou El-Enein SA, Hassanin MA, Sakr AK, Hanfi MY, Sayyed MI, Al-Otaibi JS, Cheira MF. Cetylpyridinium Bromide/Polyvinyl Chloride for Substantially Efficient Capture of Rare Earth Elements from Chloride Solution. Polymers (Basel) 2022; 14:polym14050954. [PMID: 35267777 PMCID: PMC8912479 DOI: 10.3390/polym14050954] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/17/2022] [Accepted: 02/24/2022] [Indexed: 12/04/2022] Open
Abstract
A new sorbent cetylpyridinium bromide/polyvinylchloride (CPB/PVC) was prepared and tested to extract rare earth elements (REEs) from their chloride solutions. It was identified by FTIR, TGA, SEM, EDX, and XRD. The impact of various factors such as pH, RE ion initial concentration, contacting time, and dose amount via sorption process was inspected. The optimum pH was 6.0, and the equilibrium contact time was reached at 60 min at 25 °C. The prepared adsorbent (CPB/PVC) uptake capacity was 182.6 mg/g. The adsorption of RE ions onto the CPB/PVC sorbent was found to fit the Langmuir isotherm as well as pseudo-second-order models well. In addition, the thermodynamic parameters of RE ion sorption were found to be exothermic and spontaneous. The desorption of RE ions from the loaded CPB/PVC sorbent was investigated. It was observed that the optimum desorption was achieved at 1.0 M HCl for 60 min contact time at ambient room temperature and a 1:60 solid: liquid phase ratio (S:L). As a result, the prepared CPB/PVC sorbent was recognized as a competitor sorbent for REEs.
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Affiliation(s)
- Eman M. Allam
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
- Correspondence: (E.M.A.); (M.F.C.)
| | - Taysser A. Lashen
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
| | - Saeyda A. Abou El-Enein
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom 32511, Egypt;
| | - Mohamed A. Hassanin
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
| | - Ahmed K. Sakr
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
| | - Mohamed Y. Hanfi
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
- Institute of Physics and Technology, Ural Federal University, St. Mira, 19, 620002 Yekaterinburg, Russia
| | - M. I. Sayyed
- Department of Nuclear Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University (IAU), P.O. Box 1982, Dammam 31441, Saudi Arabia;
- Department of Physics, Faculty of Science, Isra University, Amman 11622, Jordan
| | - Jamelah S. Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Mohamed F. Cheira
- Nuclear Materials Authority, El Maadi, Cairo P.O. Box 530, Egypt; (T.A.L.); (M.A.H.); (A.K.S.); (M.Y.H.)
- Correspondence: (E.M.A.); (M.F.C.)
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Rare Earth Group Separation after Extraction Using Sodium Diethyldithiocarbsamate/Polyvinyl Chloride from Lamprophyre Dykes Leachate. MATERIALS 2022; 15:ma15031211. [PMID: 35161155 PMCID: PMC8839727 DOI: 10.3390/ma15031211] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/28/2022] [Accepted: 02/02/2022] [Indexed: 11/17/2022]
Abstract
This study presents the first application of sodium diethyldithiocarbamate/polyvinyl chloride (DdTC/PVC) as a novel adsorbent for rare earth element (REE) sorption from leach liquors. DdTC/PVC has higher adsorption properties than other sorbents, the synthesis of DdTC/PVC is more accessible than other resins, and it is considered a more affordable sorbent. The three-liquid-phase extraction technique (TLPE) was applied to separate REEs into light, middle, and heavy rare earth elements as groups. The TLPE is an excellent achievable technique in the separation of REEs. DdTC/PVC was prepared as a sorbent to sorb rare-earth ions in chloride solution. It was described by XRD, SEM, TGA, and FTIR. The factors pH, initial rare-earth ion concentration, contact time, and DdTC/PVC dose were also analyzed. The ideal pH was 5.5, and the ideal equilibration time was found to be 45 min. The rare-earth ion uptake on DdTC/PVC was 156.2 mg/g. The rare-earth ion sorption on DdTC/PVC was fitted to Langmuir and pseudo-2nd-order models. The rare-earth ions’ thermodynamic adsorption was spontaneous and exothermic. In addition, rare-earth ion desorption from the loaded DdTC/PVC was scrutinized using 1 M HCl, 45 min time of contact, and a 1:60 S:L phase ratio. The obtained rare earth oxalate concentrate was utilized after dissolving it in HCl to extract and separate the RE ions into three groups—light (La, Ce, Nd, and Sm), middle (Gd, Ho, and Er), and heavy (Yb, Lu, and Y)—via three-liquid-phase extraction (TLPE). This technique is simple and suitable for extracting REEs.
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Junejo R, Shams Jalbani N, Kaya S, Serdaroglu G, Elik M, Memon S. Equilibrium, thermodynamic, and kinetic modeling studies for the adsorptive removal of oxyanions from water. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.2009869] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ranjhan Junejo
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Nida Shams Jalbani
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Savas Kaya
- Department of Pharmacy, Health Services Vocational School, Sivas Cumhuriyet University, Sivas, Turkey
| | | | - Mustafa Elik
- Department of Mathematics and Science Education, Faculty of Education, Sivas Cumhuriyet University, Sivas, Turkey
| | - Shahabuddin Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
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Adsorption of Yttrium Ions on 3-Amino-5-Hydroxypyrazole Impregnated Bleaching Clay, a Novel Sorbent Material. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app112110320] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this work, spent bleaching clay (SBC) was treated with ethyl acetate and impregnation with 3-amino-5-hydroxypyrazole (AHIBC) that utilized as economical sorbent material. The uptake of yttrium ions from aqueous solution using AHIBC was studied under batch process as a function of pH of the solution, contact time, adsorbent dosage, Yttrium ions concentration, and ambient temperature. The adsorption equilibrium was achieved at the value of pH = 6.0 and agitation time of 60 min at room temperature. The utmost adsorption capacity of Y(III) ions on AHIBC was 171.32 mg·g−1. Kinetic, isotherm, and thermodynamic models were applied to the experimental data obtained. Adsorption follows a pseudo–second–order kinetic model, while the adsorption isotherm fits the Langmuir model. A negative value of Gibbs free energy ΔG° revealed that the adsorption of the Y ions on the AHIBC adsorbent was spontaneously in nature. In addition, the electrostatic interaction process between the metal ions and AHIBC was favorable. The negative value of ΔH° states that Y ions adsorption was an exothermic process. Desorption efficiency reduced from 97% to 80% after eight consecutive rounds.
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Gado MA, Atia BM, Cheira MF, Elawady ME, Demerdash M. Highly efficient adsorption of uranyl ions using hydroxamic acid-functionalized graphene oxide. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-1063] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A chelating matrix prepared by immobilizing N-hydroxyl amine onto graphene oxide functionalized with aspartic acid (GO-HDX) was applied to recover UO2
2+ from their SO4
2− leach liquor. SEM-EDAX, FT-IR, TGA, and XRD instruments, in addition, Raman spectroscopy (IR-Raman), were used to analyze the synthesized GO-HDX. The static extraction technique optimized various physicochemical parameters that impacted the UO2
2+ extraction. The optimal pH, time of contact, initial concentration, GO-HDX dose, temp., foreign ions, and eluting agents were gained. The experimental equilibrium documents were assessed using Langmuir and Freundlich equations. The Langmuir equation model quite fits the investigational adsorption data with a maximum uptake of 277.78 mg/g, and it implied the attending of monolayer coverage of adsorbed molecules. Pseudo-first- and pseudo-second-order analyses were done to inspect the kinetic results. The data indicated that pseudo-second-order kinetics fit all concentrations. The intended thermodynamic factors were ∆G° negative values and ∆H° positive value. The data signified that the UO2
2+ extraction onto GO-HDX was spontaneous adsorption and endothermic at higher temperatures. The regeneration efficiency of GO-HDX was 98% using 1 M HCl.
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Affiliation(s)
| | - Bahig M. Atia
- Nuclear Materials Authority , El Maadi , Cairo , Egypt
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13
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Rashed MN, El Taher M, Fadlalla SMM. Photocatalytic degradation of Rhodamine‐B dye using composite prepared from drinking water treatment sludge and nano TiO
2. ENVIRONMENTAL QUALITY MANAGEMENT 2021. [DOI: 10.1002/tqem.21772] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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14
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Saber AF, EL-Mahdy AFM. ( E)-1,2-Diphenylethene-based conjugated nanoporous polymers for a superior adsorptive removal of dyes from water. NEW J CHEM 2021. [DOI: 10.1039/d1nj04287d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A series of (E)-1,2-diphenylethene-based conjugated nanoporous polymers having extraordinary thermal stabilities, high surface areas, and superior adsorptive removal of dyes from water have been developed.
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Affiliation(s)
- Ahmed F. Saber
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Ahmed F. M. EL-Mahdy
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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