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Jun BM, Kim D, Shin J, Chon K, Park C, Rho H. Removal of trivalent chromium ions in model contaminated groundwater using hexagonal boron nitride as an adsorbent. CHEMOSPHERE 2024; 361:142539. [PMID: 38844110 DOI: 10.1016/j.chemosphere.2024.142539] [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: 04/11/2024] [Revised: 05/27/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
The feasibility of using hexagonal boron nitride (h-BN) to treat heavy metal Cr(III) from model contaminated groundwater was evaluated in this study by adsorption experiments and characterizations. To the best of our knowledge, this study is the first attempt to conduct the adsorption of Cr(III) by h-BN under various experimental conditions such as exposure time, ratio of adsorbates and adsorbents, solution pH, background ions with different ionic strength, and the presence of humic acids (HA) in model contaminated groundwater. The optimized h-BN showed excellent maximum adsorption capacity (i.e., 177 mg ∙ g-1) when the concentrations of Cr(III) and h-BN were 10 and 10 mg ∙ L-1, respectively. Subsequently, we confirmed there was a negligible change in the adsorption performance of Cr(III) by h-BN in the presence of co-ions (i.e., K and Mg) in concentrations in a range from 50 to 1000 mg ∙ L-1. Furthermore, the adsorption performance of Cr(III) gradually improved with HA concentrations from 2.5 to 25 mg ∙ L-1. Interestingly, the maximum adsorption performance of Cr(III) by both HA and h-BN increased until 500 mg ∙ g-1 in the presence of 25 mg ∙ L-1 HA. The adsorption mechanism was clarified by Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy. Additionally, we successfully confirmed that h-BN could be reused until five cycles. On the basis of the adsorption performance results and characterizations, h-BN can be utilized as an efficient and practical adsorbent to treat Cr(III) in groundwater treatment.
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Affiliation(s)
- Byung-Moon Jun
- Radwaste Management Center, Korea Atomic Energy Research Institute (KAERI), 111 Daedeok-Daero 989beon-gil, Yuseong-Gu, Daejeon, 34057, Republic of Korea
| | - Deokhwan Kim
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283 Goyang-Daero, Ilsanseo-Gu, Goyang-si, Gyeonggi-do, 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon, 34113, Republic of Korea
| | - Jaegwan Shin
- Department of Integrated Energy and Infra system, Kangwon National University, 1, Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
| | - Kangmin Chon
- Department of Integrated Energy and Infra system, Kangwon National University, 1, Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, Republic of Korea; Department of Environmental Engineering, College of Engineering, Kangwon National University, 1, Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
| | - Chanhyuk Park
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Republic of Korea
| | - Hojung Rho
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283 Goyang-Daero, Ilsanseo-Gu, Goyang-si, Gyeonggi-do, 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon, 34113, Republic of Korea.
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Tuo K, Li J, Li Y, Liang C, Shao C, Hou W, Li Z, Pu S, Deng C. Construction of hierarchical porous and polydopamine/salicylaldoxime functionalized zeolitic imidazolate framework-8 via controlled etching for uranium adsorption. MATERIALS HORIZONS 2024; 11:3364-3374. [PMID: 38686502 DOI: 10.1039/d3mh02108d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Efficient uranium extraction from seawater is critical for the development of the nuclear industry. Herein, a polydopamine/salicylaldoxime decorated hierarchical zeolitic imidazolate framework-8 (H-PDA/SA-ZIF-8) is constructed by using a controlled etching process. Benefiting from the combination of PDA/SA and the zeolitic imidazolate framework-8 (ZIF-8), as well as a controlled etching process, the H-PDA/SA-ZIF-8 possesses multiaffinity sites, excellent specific surface area (1234.92 m2 g-1), and a hierarchical pore structure. The H-PDA/SA-ZIF-8 exhibits excellent adsorption capacity (Qm = 869.6 mg g-1), selectivity, and reusability in uranium adsorption. The adsorption process of H-PDA/SA-ZIF-8 fits very well with the Langmuir isotherm model and pseudo-second-order models, and the adsorption process equilibrates within 20 min (C0 = 20 mg L-1). Furthermore, the H-PDA/SA-ZIF-8 shows remarkable antibacterial ability. Impressively, the adsorption capacity of H-PDA/SA-ZIF-8 to uranium in natural seawater reaches 6.9 mg g-1 after circulation for 15 days. Therefore, the H-PDA/SA-ZIF-8 is a promising and fascinating material for uranium extraction from natural seawater.
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Affiliation(s)
- Kai Tuo
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Jin Li
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Yi Li
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Chuyao Liang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Cuicui Shao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Weifeng Hou
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Zhijian Li
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Shouzhi Pu
- YuZhang Normal University, Nanchang 330013, PR China.
| | - Chunhui Deng
- Shanghai Pudong Hospital, and Department of Chemistry, Fudan University, Shanghai 201399, China.
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Peluzo BMTC, Moura RT, Kraka E. Extraction of uranyl from spent nuclear fuel wastewater via complexation-a local vibrational mode study. J Mol Model 2024; 30:216. [PMID: 38888814 DOI: 10.1007/s00894-024-06000-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024]
Abstract
CONTEXT The efficient extraction of uranyl from spent nuclear fuel wastewater for subsequent reprocessing and reuse is an essential effort toward minimization of long-lived radioactive waste. N-substituted amides and Schiff base ligands are propitious candidates, where extraction occurs via complexation with the uranyl moiety. In this study, we extensively probed chemical bonding in various uranyl complexes, utilizing the local vibrational modes theory alongside QTAIM and NBO analyses. We focused on (i) the assessment of the equatorial O-U and N-U bonding, including the question of chelation, and (ii) how the strength of the axial U = O bonds of the uranyl moiety changes upon complexation. Our results reveal that the strength of the equatorial uranium-ligand interactions correlates with their covalent character and with charge donation from O and N lone pairs into the vacant uranium orbitals. We also found an inverse relationship between the covalent character of the equatorial ligand bonds and the strength of the axial uranium-oxygen bond. In summary, our study provides valuable data for a strategic modulation of N-substituted amide and Schiff base ligands towards the maximization of uranyl extraction. METHOD Quantum chemistry calculations were performed under the PBE0 level of theory, paired with the relativistic NESCau Hamiltonian, currently implemented in Cologne2020 (interfaced with Gaussian16). Wave functions were expanded in the cc-pwCVTZ-X2C basis set for uranium and Dunning's cc-pVTZ for the remaining atoms. For the bonding properties, we utilized the package LModeA in the local modes analyses, AIMALL in the QTAIM calculations, and NBO 7.0 for the NBO analyses.
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Affiliation(s)
- Bárbara M T C Peluzo
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX, 75275-0314, USA
| | - Renaldo T Moura
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX, 75275-0314, USA
- Department of Chemistry and Physics, Center of Agrarian Sciences, Federal University of Paraíba, Areia, 58397-000, Paraíba, Brazil
| | - Elfi Kraka
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX, 75275-0314, USA.
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Kong L, Long X, Yu Z, Song P, Diao Z, Song G, Chen D. Stabilization of Uranium in Acid Ore Wastewater through Hydrothermal Mineralization-Induced Crystallization. Inorg Chem 2024; 63:10611-10618. [PMID: 38801713 DOI: 10.1021/acs.inorgchem.4c00990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Uranium [U(VI)] mining activity resulted in the discharge of uranium containing acid wastewater. It is necessary for immobilizing the uranium from wastewater to avoid its environmental pollution. In this work, a novel hydrothermal mineralization strategy is proposed for uranium stabilization. Three reaction systems such as Mg3(PO4)2 + UO22+, Mg2+ + PO43- + UO22+, and Mg2+ + PO43- + Mg3(PO4)2 + UO22+ were designed to investigate the uranium mineralization and stabilization performance. The consumed molar quantities of magnesium and phosphate were calculated to understand the mineralization mechanisms. The molar ratios of Mg/U and P/U in the experimental results were in agreement with those of thermodynamic calculation in the presence of dissolved Mg2+ and PO43- under the hydrothermal process. The calculated saturated index indicated the facile crystallization of uranium into the saleeite and chernikovite through hydrothermal mineralization at the pH value of 5 and 473 K. Crystallization into saleeite and chernikovite contributed to uranium stabilization, resulting in the negligible leaching rate of 5% due to the high crystallinity of 97.23%. Thus, hydrothermal mineralization of uranium crystallization into saleeite and chernikovite was promising for uranium stabilization with long-term stability.
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Affiliation(s)
- Lingjun Kong
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
- School of Chemistry and Chemical Engineering, Qinghai Minzu University, Xining 810007, China
| | - Xingyu Long
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zijing Yu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Ping Song
- School of Chemistry and Chemical Engineering, Qinghai Minzu University, Xining 810007, China
| | - Zenghui Diao
- School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Gang Song
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Diyun Chen
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
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Jun BM, Chae SH, Kim D, Jung JY, Kim TJ, Nam SN, Yoon Y, Park C, Rho H. Adsorption of uranyl ion on hexagonal boron nitride for remediation of real U-contaminated soil and its interpretation using random forest. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134072. [PMID: 38522201 DOI: 10.1016/j.jhazmat.2024.134072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/09/2024] [Accepted: 03/16/2024] [Indexed: 03/26/2024]
Abstract
Acid leaching has been widely applied to treat contaminated soil, however, it contains several inorganic pollutants. The decommissioning of nuclear power plants introduces radioactive and soluble U(VI), a substance posing chemical toxicity to humans. Our investigation sought to ascertain the efficacy of hexagonal boron nitride (h-BN), an highly efficient adsorbent, in treating U(VI) in wastewater. The adsorption equilibrium of U(VI) by h-BN reached saturation within a mere 2 h. The adsorption of U(VI) by h-BN appears to be facilitated through electrostatic attraction, as evidenced by the observed impact of pH variations, acidic agents (i.e., HCl or H2SO4), and the presence of background ions on the adsorption performance. A reusability test demonstrated the successful completion of five cycles of adsorption/desorption, relying on the surface characteristics of h-BN as influenced by solution pH. Based on the experimental variables of initial U(VI) concentration, exposure time, temperature, pH, and the presence of background ions/organic matter, a feature importance analysis using random forest (RF) was carried out to evaluate the correlation between performances and conditions. To the best of our knowledge, this study is the first attempt to conduct the adsorption of U(VI) generated from real contaminated soil by h-BN, followed by interpretation of the correlation between performance and conditions using RF. Lastly, a. plausible adsorption mechanism between U(VI) and h-BN was explained based on the experimental results, characterizations, and a. comparison with previous adsorption studies on the removal of heavy metals by h-BN.
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Affiliation(s)
- Byung-Moon Jun
- Radwaste Management Center, Korea Atomic Energy Research Institute (KAERI), 111 Daedeok-Daero 989beon-gil, Yuseong-Gu, Daejeon 34057, Republic of Korea
| | - Sung Ho Chae
- Center for Water Cycle Research, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Deokhwan Kim
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283 Goyang-Daero, Ilsanseo-Gu, Goyang-si, Gyeonggi-do 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon 34113, Republic of Korea
| | - Jun-Young Jung
- Radwaste Management Center, Korea Atomic Energy Research Institute (KAERI), 111 Daedeok-Daero 989beon-gil, Yuseong-Gu, Daejeon 34057, Republic of Korea
| | - Tack-Jin Kim
- Radwaste Management Center, Korea Atomic Energy Research Institute (KAERI), 111 Daedeok-Daero 989beon-gil, Yuseong-Gu, Daejeon 34057, Republic of Korea
| | - Seong-Nam Nam
- Department of Chemical and Environmental Science, Korea Army Academy, Yeong-Cheon 495 Hoguk-ro, Gokyeong-myeon, Yeongcheon-si, Gyeongsangbuk-do, Republic of Korea
| | - Yeomin Yoon
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Chanhyuk Park
- Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Hojung Rho
- Department of Environment Research, Korea Institute of Civil Engineering and Building Technology (KICT), 283 Goyang-Daero, Ilsanseo-Gu, Goyang-si, Gyeonggi-do 10223, Republic of Korea; Department of Civil and Environment Engineering, University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong-Gu, Daejeon 34113, Republic of Korea.
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Wang B, Hu H, Huang D, Tao Y. Study on uranium ion adsorption property of porous glass modified with amidoxime group. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:26204-26216. [PMID: 38498136 DOI: 10.1007/s11356-024-32943-5] [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: 11/27/2023] [Accepted: 03/11/2024] [Indexed: 03/20/2024]
Abstract
In this paper, we prepared three types of porous glasses (PGs) with specific surface areas of 311.60 m2/g, 277.60 m2/g, and 231.38 m2/g, respectively, via borosilicate glass phase separation. These glasses were further modified with amidoxime groups (AO) using the hydroxylamine method, yielding adsorbents named 1.5-PG-AO, 2-PG-AO, and 3-PG-AO. The adsorption performance of these adsorbents under various conditions was investigated, including sorption kinetics and adsorption mechanisms. The results reveal that the number of micropores and specific surface area of PG are significantly reduced after AO modification. All three adsorbents exhibit similar adsorption capabilities. Particularly, pH has a pronounced effect on U (VI) adsorption of PG-AO, with a maximum value at pH = 4.5. Equilibrium adsorption is achieved within 2 h, with a maximum adsorption capacity of 129 mg/g. Notably, a uranium removal rate of 99.94% is attained. Furthermore, the adsorbents show high selectivity in uranium solutions containing Na+ or K+. Moreover, the adsorbents demonstrate exceptional regeneration ability, with the removal rate remaining above 80% even after undergoing five adsorption-desorption cycles. The adsorption reaction of uranium on PG-AO involves a combination of multiple processes, with monolayer chemisorption being the dominant mechanism. Both the complex adsorption of AO and the ion exchange and physical adsorption of PG contribute to the adsorption of uranyl ions on the PG-AO adsorbents.
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Affiliation(s)
- Bingxin Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Hongyuan Hu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Difei Huang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Yuqiang Tao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, People's Republic of China.
- Hunan Key Laboratory for the Design and Application of Actinide Complexes, Hengyang, 421001, People's Republic of China.
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Boussouga YA, Joseph J, Stryhanyuk H, Richnow HH, Schäfer AI. Adsorption of uranium (VI) complexes with polymer-based spherical activated carbon. WATER RESEARCH 2024; 249:120825. [PMID: 38118222 DOI: 10.1016/j.watres.2023.120825] [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: 08/11/2023] [Revised: 10/11/2023] [Accepted: 11/02/2023] [Indexed: 12/22/2023]
Abstract
Adsorption processes with carbon-based adsorbents have received substantial attention as a solution to remove uranium from drinking water. This study investigated uranium adsorption by a polymer-based spherical activated carbon (PBSAC) characterised by a uniformly smooth exterior and an extended surface of internal cavities accessible via mesopores. The static adsorption of uranium was investigated applying varying PBSAC properties and relevant solution chemistry. Spatial time-of-flight secondary ion mass spectrometry (ToF-SIMS) was employed to visualise the distribution of the different uranium species in the PBSAC. The isotherms and thermodynamics calculations revealed monolayer adsorption capacities of 28-667 mg/g and physical adsorption energies of 13-21 kJ/mol. Increasing the surface oxygen content of the PBSAC to 10 % enhanced the adsorption and reduced the equilibrium time to 2 h, while the WHO drinking water guideline of 30 µgU/L could be achieved for an initial concentration of 250 µgU/L. Uranium adsorption with PBSAC was favourable at the pH 6-8. At this pH range, uranyl carbonate complexes (UO2CO3(aq), UO2(CO3)22-, (UO2)2CO3(OH)3-) predominated in the solution, and the ToF-SIMS analysis revealed that the adsorption of these complexes occurred on the surface and inside the PBSAC due to intra-particle diffusion. For the uranyl cations (UO22+, UO2OH+) at pH 2-4, only shallow adsorption in the outermost PBSAC layers was observed. The work demonstrated the effective removal of uranium from contaminated natural water (67 µgU/L) and meeting both German (10 µgU/L) and WHO guideline concentrations. These findings also open opportunities to consider PBSAC in hybrid treatment technologies for uranium removal, for instance, from high-level radioactive waste.
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Affiliation(s)
- Youssef-Amine Boussouga
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany.
| | - James Joseph
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Hryhoriy Stryhanyuk
- Department of Isotope Biogeochemistry, ProVIS-Centre for Chemical Microscopy, Helmholtz, Center for Environmental Research (UFZ), Leipzig, Germany
| | - Hans H Richnow
- Department of Isotope Biogeochemistry, ProVIS-Centre for Chemical Microscopy, Helmholtz, Center for Environmental Research (UFZ), Leipzig, Germany
| | - Andrea I Schäfer
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
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Mittal M, Tripathi S, Shin DK. Biopolymeric Nanocomposites for Wastewater Remediation: An Overview on Recent Progress and Challenges. Polymers (Basel) 2024; 16:294. [PMID: 38276702 PMCID: PMC10818902 DOI: 10.3390/polym16020294] [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: 12/15/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024] Open
Abstract
Essential for human development, water is increasingly polluted by diverse anthropogenic activities, containing contaminants like organic dyes, acids, antibiotics, inorganic salts, and heavy metals. Conventional methods fall short, prompting the exploration of advanced, cost-effective remediation. Recent research focuses on sustainable adsorption, with nano-modifications enhancing adsorbent efficacy against persistent waterborne pollutants. This review delves into recent advancements (2020-2023) in sustainable biopolymeric nanocomposites, spotlighting the applications of biopolymers like chitosan in wastewater remediation, particularly as adsorbents and filtration membranes along with their mechanism. The advantages and drawbacks of various biopolymers have also been discussed along with their modification in synthesizing biopolymeric nanocomposites by combining the benefits of biodegradable polymers and nanomaterials for enhanced physiochemical and mechanical properties for their application in wastewater treatment. The important functions of biopolymeric nanocomposites by adsorbing, removing, and selectively targeting contaminants, contributing to the purification and sustainable management of water resources, have also been elaborated on. Furthermore, it outlines the reusability and current challenges for the further exploration of biopolymers in this burgeoning field for environmental applications.
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Affiliation(s)
- Mona Mittal
- Department of Applied Sciences (Chemistry), Galgotias College of Engineering and Technology, Greater Noida 201310, Uttar Pradesh, India
| | - Smriti Tripathi
- Department of Applied Sciences (Chemistry), Galgotias College of Engineering and Technology, Greater Noida 201310, Uttar Pradesh, India
| | - Dong Kil Shin
- School of Mechanical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea
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Patra K, Brennessel WW, Matson EM. Molybdenum sulphide clusters as redox-active supports for low-valent uranium. Chem Commun (Camb) 2024; 60:530-533. [PMID: 38053465 DOI: 10.1039/d3cc05561b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
The preparation of an actinide substituted cubane cluster, (Cp*3Mo3S4)Cp*UI2, and its reduced derivatives are reported. Structural and spectroscopic investigations provide insight into the unique interactions between the actinide and its redox-active molybdenum sulphide metalloligand, serving as a model to study atomically-dispersed, low-valent actinide ions on MoS2 surfaces. To probe the ability of the assembly to facilitate multielectron small molecule activation, the reactivity of the fully-reduced cluster, (Cp*3Mo3S4)Cp*U, with azobenzene was investigated. Addition of the substrate results in the formation of a cis-bis-imido cluster, (Cp*3Mo3S4)Cp*U(NPh)2. Cooperative reactivity between the actinide and redox-active support facilitates the 4e--reduction of substrate.
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Affiliation(s)
- Kamaless Patra
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
| | | | - Ellen M Matson
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
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Li H, Song J, Ma C, Shen C, Chen M, Chen D, Zhang H, Su M. Uranium recovery from weakly acidic wastewater using recyclable γ-Fe 2O 3@meso-SiO 2. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 349:119347. [PMID: 37897898 DOI: 10.1016/j.jenvman.2023.119347] [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: 07/25/2023] [Revised: 09/28/2023] [Accepted: 10/14/2023] [Indexed: 10/30/2023]
Abstract
U(VI)-containing acidic wastewater produced from uranium mining sites is an environmental hazard. Highly efficient capture of U(VI) from such wastewater is of great significance. In this study, a mesoporous core-shell material (i.e. γ-Fe2O3@meso-SiO2) with magnetically and vertically oriented channels was rationally designed through a surfactant-templating method. Batch experiment results showed that the material had an efficiency level of >99.7% in removing U(VI) and a saturated adsorption capacity of approximately 41.40 mg/g, with its adsorption reaching equilibrium in 15 min. The U(VI) adsorption efficiency of the material remained above 90% in a solution with competing ions and in acidic radioactive wastewater, indicating its ability to selectively adsorb U(VI). The material exhibited high adsorption efficiency and desorption efficiency in five cycles of desorption and regeneration experiments. According to the results, the mechanism through which γ-Fe2O3@meso-SiO2 adsorbs U(VI) was dominated by chemical complexation and electrostatic attraction between these two substances. Therefore, γ-Fe2O3@meso-SiO2 is not only beneficial to control the environmental migration of uranium, but also has good selective adsorption and repeated regeneration performance when used to recover U(VI) from weakly acidic wastewater in uranium mining.
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Affiliation(s)
- Hong Li
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Juexi Song
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao, 266071, Shandong, China
| | - Chuqin Ma
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Congjie Shen
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Miaoling Chen
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Diyun Chen
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Hongguo Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China
| | - Minhua Su
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, Guangdong, China.
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Wang X, Xiao C, Qi J, Guo X, Qi L, Zhou Y, Zhu Z, Yang Y, Li J. Enhancing Uranium Removal with a Titanium-Incorporated Zirconium-Based Metal-Organic Framework. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:17366-17377. [PMID: 37971405 DOI: 10.1021/acs.langmuir.3c02535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
The urgent need to efficiently and rapidly decontaminate uranium contamination in aquatic environments underscores its significance for ecological preservation and environmental restoration. Herein, a series of titanium-doped zirconium-based metal-organic frameworks were meticulously synthesized through a stepwise process. The resultant hybrid bimetallic materials, denoted as NU-Zr-n%Ti, exhibited remarkable efficiency in eliminating uranium (U (VI)) from aqueous solution. Batch experiments were executed to comprehensively assess the adsorption capabilities of NU-Zr-n%Ti. Notably, the hybrid materials exhibited a substantial increase in adsorption capacity for U (VI) compared to the parent NU-1000 framework. Remarkably, the optimized NU-Zr-15%Ti displayed a noteworthy adsorption capacity (∼118 mg g-1) along with exceptionally rapid kinetics at pH 4.0, surpassing that of pristine NU-1000 by a factor of 10. This heightened selectivity for U (VI) persisted even when diverse ions exist. The dominant mechanisms driving this high adsorption capacity were identified as the robust electrostatic attraction between the negatively charged surface of NU-Zr-15%Ti and positively charged U (VI) species as well as surface complexation. Consequently, NU-Zr-15%Ti emerges as a promising contender for addressing uranium-laden wastewater treatment and disposal due to its favorable sequestration performance.
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Affiliation(s)
- Xiangxiang Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Chengming Xiao
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Junwen Qi
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xin Guo
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Lanyue Qi
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yujun Zhou
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Zhigao Zhu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yue Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiansheng Li
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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12
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Liu YL, Zhang C, Guo L, Zeng Q, Wang R, Chen H, Zhang Q, Zeng Q. Synergistically adsorbing and reducing Uranium from water by a novel nano zero-valent copper/MXene 0D/2D nanocomposite. WATER RESEARCH 2023; 245:120666. [PMID: 37776588 DOI: 10.1016/j.watres.2023.120666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/16/2023] [Accepted: 09/23/2023] [Indexed: 10/02/2023]
Abstract
Proper disposal of uranium-containing waste is of utmost importance for safeguarding the environment and human health. In this study, we proposed a novel zero-dimensional (0D)/two-dimensional (2D) nanocomposite material, nZVC/Ti3C2, composed of nano zero-valent copper (nZVC) nanoparticles loaded onto Ti3C2 MXene nanoflakes, which was prepared using a simple in situ chemical reduction method. The uniform dispersion of 0D nZVC nanoparticles, with a size of approximately 5 nm, onto the 2D ultrathin Ti3C2 MXene effectively prevented agglomeration and corrosion of nZVC. This unique configuration provided numerous adsorption sites for UO22+and facilitated a fascinating charge channel for reducing adsorbed UO22+ into low-mobilized UO2 by nZVC. Under the synergistic effect of Ti3C2 MXene and nZVC, remarkable efficiency and selectivity of nZVC/Ti3C2 for U (VI) removal were demonstrated, which exhibited an exceptional adsorption capacity of up to 360 mg/g, coupled with a high removal efficiency of 97.5 % and rapid kinetics. Importantly, the presence of humic acid did not significantly affect the U (VI) removal efficiency of the composite because of the reduction effect of nZVC. The underlying mechanism of U (VI) removal was elucidated, revealing the involvement of reductive immobilization in the form of UO2 (as high as 73.6 %), inner-sphere surface complexation, and hydrolytic precipitation. This mechanism was dependent on the availability of active nZVC and the solution's pH. These findings highlight the potential of nZVC/Ti3C2 composites as efficient decontaminants for radioactive wastewater, thus contributing to advancements in environmental remediation endeavors.
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Affiliation(s)
- Yi-Lin Liu
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Chao Zhang
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Lulin Guo
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Qingming Zeng
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Rongzhong Wang
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Haodong Chen
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Qingyan Zhang
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Qingyi Zeng
- School of Mechanical Engineering, & School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China.
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13
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Ayiotis A, Georgiou E, Ioannou PS, Pashalidis I, Krasia-Christoforou T. 3D Composite U(VI) Adsorbents Based on Alginate Hydrogels and Oxidized Biochar Obtained from Luffa cylindrica. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6577. [PMID: 37834714 PMCID: PMC10574392 DOI: 10.3390/ma16196577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
3D naturally derived composites consisting of calcium alginate hydrogels (CA) and oxidized biochar obtained from Luffa cylindrica (ox-LC) were synthesized and further evaluated as adsorbents for the removal of U(VI) from aqueous media. Batch-type experiments were conducted to investigate the effect of various physicochemical parameters on the adsorption performance of materials. The maximum adsorption capacity (qmax) was 1.7 mol kg-1 (404.6 mg·g-1) at pH 3.0 for the CA/ox-LC with a 10% wt. ox-LC content. FTIR spectroscopy indicated the formation of inner-sphere complexes between U(VI) and the surface-active moieties existing on both CA and ox-LC, while thermodynamic data revealed that the adsorption process was endothermic and entropy-driven. The experimental data obtained from the adsorption experiments were well-fitted by the Langmuir and Freundlich models. Overall, the produced composites exhibited enhanced adsorption efficiency against U(VI), demonstrating their potential use as effective adsorbents for the recovery of uranium ions from industrial effluents and seawater.
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Affiliation(s)
- Andreas Ayiotis
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1 Panepistimiou Avenue, 2109, Aglantzia, P.O. Box 20537, 1678 Nicosia, Cyprus; (A.A.); (P.S.I.)
| | - Efthalia Georgiou
- Department of Chemistry, University of Cyprus, 1 Panepistimiou Avenue, 2109, Aglantzia, P.O. Box 20537, 1678 Nicosia, Cyprus; (E.G.); (I.P.)
| | - Panagiotis S. Ioannou
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1 Panepistimiou Avenue, 2109, Aglantzia, P.O. Box 20537, 1678 Nicosia, Cyprus; (A.A.); (P.S.I.)
| | - Ioannis Pashalidis
- Department of Chemistry, University of Cyprus, 1 Panepistimiou Avenue, 2109, Aglantzia, P.O. Box 20537, 1678 Nicosia, Cyprus; (E.G.); (I.P.)
| | - Theodora Krasia-Christoforou
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1 Panepistimiou Avenue, 2109, Aglantzia, P.O. Box 20537, 1678 Nicosia, Cyprus; (A.A.); (P.S.I.)
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14
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Ning J, Zhang B, Siqin L, Liu G, Wu Q, Xue S, Shao T, Zhang F, Zhang W, Liu X. Designing advanced S-scheme CdS QDs/La-Bi 2WO 6 photocatalysts for efficient degradation of RhB. EXPLORATION (BEIJING, CHINA) 2023; 3:20230050. [PMID: 37933284 PMCID: PMC10582608 DOI: 10.1002/exp.20230050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 07/20/2023] [Indexed: 11/08/2023]
Abstract
Finding effective strategies to design efficient photocatalysts and decompose refractory organic compounds in wastewater is a challenging problem. Herein, by coupling element doping and constructing heterostructures, S-scheme CdS QDs/La-Bi2WO6 (CS/LBWO) photocatalysts are designed and synthesized by a simple hydrothermal method. As a result, the RhB degradation efficiency of the optimized 5% CS/LBWO reached 99% within 70 min of illumination with excellent stability and recyclability. CS/LBWO shows improvement in the adsorption range of visible light and promotes electron-hole pair generation/migration/separation, attributing the superior degradation performance. The degradation RhB mechanism is proposed by a free radical capture experiment, electron paramagnetic resonance, and high-performance liquid chromatography-mass spectrometry results, indicating that h+ and •O2 - play a significant role during four degradation processes: de-ethylation, chromophore cleavage, ring opening, and mineralization. Based on in situ irradiated X-ray photoelectron spectroscopy, Mulliken electronegativity theory, and the work function results, the S-scheme heterojunction of CS/LBWO promotes the transfer of photogenerated electron-hole pairs and promotes the generation of reactive radicals. This work not only reports that 5% CS/LBWO is a promising photocatalyst for degradation experiments but also provides an approach to design advanced photocatalysts by coupling element doping and constructing heterostructures.
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Affiliation(s)
- Jing Ning
- School of Physics and Electronic InformationYan'an UniversityYan'anPeople's Republic of China
| | - Bohang Zhang
- School of Physics and Electronic InformationYan'an UniversityYan'anPeople's Republic of China
| | - Letu Siqin
- Key Laboratory of Semiconductor Photovoltaic at Universities of Inner Mongolia Autonomous Region, School of Physical Science and TechnologyInner Mongolia UniversityHuhhotInner MongoliaPeople's Republic of China
| | - Gaihui Liu
- School of Physics and Electronic InformationYan'an UniversityYan'anPeople's Republic of China
| | - Qiao Wu
- Network Information CenterYan'an UniversityYan'anPeople's Republic of China
| | - Suqin Xue
- Network Information CenterYan'an UniversityYan'anPeople's Republic of China
| | - Tingting Shao
- School of Physics and Electronic InformationYan'an UniversityYan'anPeople's Republic of China
| | - Fuchun Zhang
- School of Physics and Electronic InformationYan'an UniversityYan'anPeople's Republic of China
| | - Weibin Zhang
- Yunnan Key Laboratory of Opto‐Electronic Information TechnologyCollege of Physics and Electronics InformationYunnan Normal UniversityKunmingPeople's Republic of China
| | - Xinghui Liu
- Department of Materials Science and EngineeringCity University of Hong KongKowloonHong KongPeople's Republic of China
- Department of Materials PhysicsSaveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences (SIMTS)ChennaiTamil NaduIndia
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15
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Galhoum AA. Mesoporous chitosan derivatives for effective uranyl sorption: Synthesis, characterization, and mechanism-application to ore leachate. Int J Biol Macromol 2023; 242:124634. [PMID: 37119908 DOI: 10.1016/j.ijbiomac.2023.124634] [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: 09/26/2022] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
Two sorbents were developed from chitosan aminophosphonation: via one-pot process to produce aminophosphonated derivative (r-AP), followed by further pyrolysis to produce mesoporous improved biochar (IBC). Sorbents structures were elucidated using CHNP/O, XRD, BET, XPS, DLS, FTIR, and pHZPC-titration. The IBC exhibits an improved specific surface (262.12 m2/g) and mesopore size (8.34 nm) compared to its organic precursor (r-AP), 52.53 m2/g and 3.39 nm. IBC surface is also enriched with high electron density heteroatoms (P/O/N). These unique merits of porosity and surface-active-sites improved sorption efficiency. Sorption characteristics were determined for uranyl recovery, and binding mechanisms were elucidated using FTIR and XPS. The maximum sorption capacity increased from 0.571 to 1.974 mmol/g for r-AP and IBC, respectively, roughly correlated with the active-sites density per mass. Equilibrium occurred within 60/120 min, and the half-sorption-time (tHST) was decreased from 10.73 for r-AP to 5.48 min for IBC. Langmuir and pseudo-second-order equation fits experimental data well. Sorption is endothermic for IBC (whereas exothermic with r-AP), spontaneous, and governed by entropy change. Both sorbents show high durability over multiple-cycles with desorption efficiency >94 % over seven cycles using NaHCO3 (0.25 M). The sorbents efficiently tested for U(VI) recovery from acidic ore leachate with outstanding selectivity coefficients.
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Affiliation(s)
- Ahmed A Galhoum
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt; Graduate Faculty of Science, Menoufia University, Shebin El-Kom, Egypt.
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16
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Yin W, Zhao TL, Wang YH, Yao QZ, Zhou GT. Mn 3O 4@polyaniline nanocomposite with multiple active sites to capture uranium(VI) and iodide: synthesis, performance, and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:30130-30143. [PMID: 36427123 DOI: 10.1007/s11356-022-24073-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
A major challenge for radioactive wastewater treatment and associated environmental remediation is how to simultaneously remove cationic and anionic radionuclides. Herein, a series of Mn3O4@polyaniline (Mn3O4@PANI) nanocomposites were successfully prepared and used to remove U(VI) and I- from aqueous solution, two highly concomitant species in nuclear pollution settings. Batch adsorption experiments reveal that the component Mn3O4 is predominantly responsible for U(VI) removal, but PANI for I-. The nanocomposite with 24.2 wt% Mn3O4 possesses high removal percentages (> 85%) either for U(VI) or I- over a wide pH range, fast removal kinetics, and excellent adsorption selectivity at high concentrations of competing ions. Benefiting from the contributions of the two components and the high adsorption affinities, the nanocomposite achieves the simultaneous removal to coexisting U(VI) and I-, with a maximum adsorption capacity 102.6 mg/g for U(VI) and 126.1 mg/g for I-. X-ray photoelectron spectroscopy (XPS) results reveal that the U(VI) adsorption occurs via coordination bonding with Mn-O, -NH- , and =N- groups in the nanocomposite, whereas I- adsorption proceeds mainly through I anionic species exchange with Cl- and interactions with π-bonds in PANI, as well as the electrostatic attraction onto Mn3O4. Considering the excellent performance and multiple active sites, the Mn3O4@PANI nanocomposite is promising to remove practical radioactive U(VI) and I-.
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Affiliation(s)
- Wei Yin
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Tian-Lei Zhao
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Yu-Han Wang
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Qi-Zhi Yao
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Gen-Tao Zhou
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
- CAS Center for Excellence in Comparative Planetology, Hefei, 230026, China.
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17
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Xiong L, Wang Y, Cui W, Chen L, Luo Q, Cao X, Liu Y. Preparation of ion-doped amorphous titanium phosphates and their adsorption properties for U(VI). J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08778-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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18
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Zhang X, Liu R, Wang H, Liu L, Yue C. Fabrication of Phosphate-Containing Mesoporous Carbon for Fast and Efficient Uranium (VI) Extraction. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.130994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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19
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Pellenz L, de Oliveira CRS, da Silva Júnior AH, da Silva LJS, da Silva L, Ulson de Souza AA, de Souza SMDAGU, Borba FH, da Silva A. A comprehensive guide for characterization of adsorbent materials. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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20
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Ge H, Ding K, Guo F, Wu X, Zhai N, Wang W. Green and Superior Adsorbents Derived from Natural Plant Gums for Removal of Contaminants: A Review. MATERIALS (BASEL, SWITZERLAND) 2022; 16:179. [PMID: 36614516 PMCID: PMC9821582 DOI: 10.3390/ma16010179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The ubiquitous presence of contaminants in water poses a major threat to the safety of ecosystems and human health, and so more materials or technologies are urgently needed to eliminate pollutants. Polymer materials have shown significant advantages over most other adsorption materials in the decontamination of wastewater by virtue of their relatively high adsorption capacity and fast adsorption rate. In recent years, "green development" has become the focus of global attention, and the environmental friendliness of materials themselves has been concerned. Therefore, natural polymers-derived materials are favored in the purification of wastewater due to their unique advantages of being renewable, low cost and environmentally friendly. Among them, natural plant gums show great potential in the synthesis of environmentally friendly polymer adsorption materials due to their rich sources, diverse structures and properties, as well as their renewable, non-toxic and biocompatible advantages. Natural plant gums can be easily modified by facile derivatization or a graft polymerization reaction to enhance the inherent properties or introduce new functions, thus obtaining new adsorption materials for the efficient purification of wastewater. This paper summarized the research progress on the fabrication of various gums-based adsorbents and their application in the decontamination of different types of pollutants. The general synthesis mechanism of gums-based adsorbents, and the adsorption mechanism of the adsorbent for different types of pollutants were also discussed. This paper was aimed at providing a reference for the design and development of more cost-effective and environmentally friendly water purification materials.
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Affiliation(s)
- Hanwen Ge
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Ke Ding
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Fang Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Xianli Wu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Naihua Zhai
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Wenbo Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
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Yu H, Zhou L, Li Z, Liu Y, Ao X, Ouyang J, Le Z, Liu Z, Adesina AA. Electrodeposited polypyrrole/biomass-derived carbon composite electrodes with high hybrid capacitance and hierarchical porous structure for enhancing U(VI) electrosorption from aqueous solution. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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22
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Nighojkar A, Sangal VK, Dixit F, Kandasubramanian B. Sustainable conversion of saturated adsorbents (SAs) from wastewater into value-added products: future prospects and challenges with toxic per- and poly-fluoroalkyl substances (PFAS). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:78207-78227. [PMID: 36184702 DOI: 10.1007/s11356-022-23166-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Following circular economy principles, the reuse or recycling of saturated adsorbents (SAs or adsorbate-laden adsorbents) into a low-cost engineered product is a valuable alternative to eliminate secondary pollution after adsorption. This review evaluates the application of SAs for the generation of products that can serve as (i) antimicrobial agents or disinfectants, (ii) materials for civil construction, (iii) catalysts, (iv) fertilizers, and (v) secondary adsorbents. The importance of SAs configuration in terms of functional groups, surface area and pore morphology played a crucial role in their reutilization. The SAs-laden silver ions (Ag+) strongly inhibit (~ 99%) the growth of Escherichia coli and Staphylococcus aureus microbes found in drinking and wastewaters. The intra-solidification of SAs containing toxic metal pollutants (As3+ and F-) with cementitious materials can effectively reduce their leaching below permissible limits of USEPA standards for their utility as additives in construction work. The existence of transition metal ions (Cu2+, Cr3+/6+, Ni2+) on the surface of SAs boosted activity and selectivity towards the desired product during catalytic oxidation, degradation, and conversion processes. The thermally recycled SAs can assist in the secondary adsorption of pollutants from another waste solution due to a larger surface area (> 1000 m2g-1). However, there are chances that the SAs discussed above will contain traces of PFAS. The article summarizes the challenges, performance efficacy, and future prospects at the end of each value-added product. We also highlight critical challenges for managing PFAS-laden SAs and stimulate new perspectives to minimize PFAS in air, water, and soils.
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Affiliation(s)
- Amrita Nighojkar
- Nano Surface Texturing Lab, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (D.U.), Pune, India
| | - Vikas Kumar Sangal
- Department of Chemical Engineering, Malaviya National Institute of Technology (MNIT), Jaipur, India
| | - Fuhar Dixit
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, Canada
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Lab, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (D.U.), Pune, India.
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23
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Cheng L, Cui W, Cheng Z, Wang Y, Xu L, Zhang Z, Chen L, Luo Q, Cao X, Liu Y. An effective magnetic amorphous titanium phosphate material to remove U(VI) from water: synthesis, characterization, and adsorption properties. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08572-y] [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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24
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Wang F, Liao Y, Li T, Xia L. Coupling of CdS and g-C3N4 decorated dendritic fibrous nano-silica for efficient photocatalytic reduction of uranium (VI). Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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25
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Su Y, Wenzel M, Paasch S, Seifert M, Doert T, Brunner E, Weigand JJ. One-pot synthesis of brewer's spent grain-supported superabsorbent polymer for highly efficient uranium adsorption from wastewater. ENVIRONMENTAL RESEARCH 2022; 212:113333. [PMID: 35483410 DOI: 10.1016/j.envres.2022.113333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/14/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
High-efficient and fast adsorption of uranium is important to reduce the hazards caused by the uranium contamination of water environment due to the increased human activities. Herein, brewer's spent grain (BSG)-supported superabsorbent polymers (SAP) with different cross-linking densities are prepared as cheap and eco-friendly adsorbents for the first time via one-pot swelling and graft polymerization. A 7 wt% NaOH solution is used to swell BSG before grafting and subsequently neutralize the acrylic acid to control the reaction rate without producing alkaline wastewater. Compared with the traditional methods, swelling improves the grafting density and the utilization of raw materials due to the increased disorder degree of the BSG fibers. This results in the grafting of abundant carboxyl and amide groups onto the BSG backbone, forming a strongly hydrophilic polymer network of the BSG-SAP. Compared with the reference polymers without BSG, BSG-SAP presents higher adsorption capacity and enhanced reusability. The highly cross-linked BSG-SAP (BSG-SAP-H) shows an outstanding adsorption capacity of U(VI) (1465 mg/g at pH0 = 4.6), a fast adsorption rate (81% of equilibrium adsorption capacity in 15 min), and a high selectivity in the presence of competing ions. Adsorption mechanism studies reveal the involvement of amide groups, a bidentate binding structure between UO22+ and the carboxyl groups, and a cation exchange between Na+ and UO22+. More importantly, the adsorption capacity of BSG-SAP-H reaches 254.4 mg/g in the fixed-bed column experiment at a low initial concentration (c0(U) = 30 mg/L) and keeps 80% of the adsorption capacity after four cycles, indicating a great potential for uranium removal from wastewater. This work shows a suitable approach to explore the untreated biomass to prepare SAP with enhanced adsorption performance via a general and low-cost strategy.
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Affiliation(s)
- Yi Su
- Chair of Inorganic Molecular Chemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Marco Wenzel
- Chair of Inorganic Molecular Chemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Silvia Paasch
- Chair of Bioanalytical Chemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Markus Seifert
- Chair of Inorganic Molecular Chemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Thomas Doert
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Eike Brunner
- Chair of Bioanalytical Chemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Jan J Weigand
- Chair of Inorganic Molecular Chemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
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Efficient Retention and Alpha Spectroscopy of Actinides from Aqueous Solutions Using a Combination of Water-Soluble Star-like Polymers and Ultrafiltration Membranes. Polymers (Basel) 2022; 14:polym14173441. [PMID: 36080514 PMCID: PMC9460127 DOI: 10.3390/polym14173441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/21/2022] Open
Abstract
We explored two approaches to recover uranium and plutonium from aqueous solutions at pH 4 and pH 7 using water-soluble star-like polyacrylamide polymers with a dextran core. In the first approach, a solution comprising a neutral or ionomer polymer was mixed with a radionuclide solution to form polymer–metal complexes that were then retained by ultrafiltration (UF) membranes under applied pressure. The same polymers were first deposited on the membrane in the second approach using pressure-driven flow. The applied polymers had an overall diameter of gyration of 120 nm, which exceeded the nominal diameter of the UF membrane pores. The polymers showed a high affinity to uranyl but could also be used to extract Pu from neutral or near-neutral pH solutions. Direct-flow single-step filtration and alpha spectrometry demonstrated that the UF membranes containing star-like copolymers could recover 99% of U and up to 60% of Pu from deionized water after filtering 15 mL solutions containing 25 ppm and 33 ppb of the actinides, correspondingly. The sorption capacity of the polymers for uranium could be measured as 1mg U per mg of the polymer after six subsequent filtration steps. Alpha spectroscopy of the deposited actinides revealed peculiarities of the structural organization of polymers and their complexes with U or Pu, depending on the approach. Though both approaches were efficient, the second approach (deposition of the polymer on the membrane followed by filtration) has an additional advantage of protecting the membrane pores from capillary collapse by filling them with the polymer chains. Therefore, these polymer-modified membranes could be used either in continuous or multi-step filtration process with drying after each step without deterioration of their sorption characteristics.
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Liu Y, Wang Y, Xia H, Wang Q, Chen X, Lv J, Li Y, Zhao J, Liu Y, Yuan D. Low-cost reed straw-derived biochar prepared by hydrothermal carbonization for the removal of uranium(VI) from aqueous solution. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08421-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Simultaneous preparation of humic acid and mesoporous silica from municipal sludge and their adsorption properties for U(VI). Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129060] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Zhao L, Wang S, Zhuang H, Lu B, Sun L, Wang G, Qiu J. Facile synthesis of low-cost MnPO 4 with hollow grape-like clusters for rapid removal uranium from wastewater. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128894. [PMID: 35447534 DOI: 10.1016/j.jhazmat.2022.128894] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/29/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
In order to deal with the environmental resource problems caused by nuclear pollution and uranium mine wastewater, it is particularly important to develop uranium removal adsorbent materials with low cost, high efficiency and controllable rapid preparation. In this work, the hollow grape-like manganese phosphate clusters (h-MnPO4) were synthesized in 4 h by in-situ etching without template at room temperature, which can quickly and effectively remove uranium ions from wastewater. Due to the reasonable hollow structure, more effective adsorption sites are exposed. The obtained sample h-MnPO4-200 reaches adsorption equilibrium in 1 h and can remove 97.20% uranyl ions (initial concentration is 100 mg L-1). Under the condition of 25 ℃ and pH= 4, the maximum adsorption capacity of h-MnPO4-200 for uranium was 751.88 mg g-1. The FT-IR, XPS and XRD analysis showed that -OH and PO43- groups played a key role in the adsorption process. Thanks to the synergistic adsorption mechanism of surface complexation and dissolution-precipitation, h-MnPO4-200 maintained a high removal rate in the presence of competitive anions and cations. In a word, h-MnPO4-200 can be rapidly synthesized through a facile and low-cost method and has a great application prospect in the practical emergency treatment of uranium-containing wastewater.
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Affiliation(s)
- Lin Zhao
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523106, Guangdong, China; College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Shiyong Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523106, Guangdong, China.
| | - Haohong Zhuang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523106, Guangdong, China.
| | - Bing Lu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523106, Guangdong, China.
| | - Lingna Sun
- College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Gang Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523106, Guangdong, China.
| | - Jieshan Qiu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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30
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Purification of uranium-containing wastewater by adsorption: a review of research on resin materials. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08370-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Luo Q, Jin T, huang J, Liu Z, Huang D, Qian Y. Porous phytic acid-doped sodium alginate aerogels as the electrode material for the electrosorption of uranium from acidic solution. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08328-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Application of potassium titanium ferrocyanide for the removal of uranium from aqueous solution: Efficiency and mechanism. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08314-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Lv Z, Zhang J, Zhang Y, Li K, Ye X, Fang M, Tan X, Kong M, Wang X. Selective and efficient removal of radioactive ions from water with well-dispersed metal oxide nanoparticles@N-doped carbon. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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34
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Carbon dots and carbon nitride composite for photocatalytic removal of uranium under air atmosphere. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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35
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Peng Y, Zhang X, Wu X, Li M, Zhang Y, Zhou C, Hua Y. Synthesis of core-shell magnetic metal organic frameworks composite for efficient uranium (VI) removal. NEW J CHEM 2022. [DOI: 10.1039/d2nj00132b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of magnetic nanoparticles and metal-organic frameworks (MOFs) has demonstrated their prospective for pollutant sequestration. In this work, Fe3O4@SiO2@UiO-66 core-shell magnetic microspheres were synthesized and used for the removal...
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36
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Nadeem S, Iqbal S, Javed M, Ahmad MN, Alsaab HO, Awwad NS, Ibrahium HA, Ibrar A, Mohyuddin A, Haroon SM, Ali L. Kinetic and Isothermal Studies on the Adsorptive Removal of Direct Yellow 12 Dye from Wastewater Using Propionic Acid Treated Bagasse. ChemistrySelect 2021. [DOI: 10.1002/slct.202103509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sohail Nadeem
- Department of Chemistry Scholl of Science University of Management and Technology Lahore Pakistan
| | - Shahid Iqbal
- Department of Chemistry School of Natural Sciences (SNS) National University of Science and Technology (NUST), H-12 Islamabad 46000 Pakistan
| | - Mohsin Javed
- Department of Chemistry Scholl of Science University of Management and Technology Lahore Pakistan
| | - Mirza Nadeem Ahmad
- Department of Applied Chemistry Government College University Faisalabad Pakistan
| | - Hashem O. Alsaab
- Department of Pharmaceutics and Pharmaceutical Technology Taif University, P.O. Box 11099 Taif 21944 Saudi Arabia
| | - Nasser S. Awwad
- Research Center for Advanced Materials Science (RCAMS) King Khalid University, P.O. Box 9004 Abha 61413 Saudi Arabia
| | - Hala A. Ibrahium
- Research Center for Advanced Materials Science (RCAMS) King Khalid University, P.O. Box 9004 Abha 61413 Saudi Arabia
- Department of Semi Pilot Plant Nuclear Materials Authority, P.O. Box 530 El Maadi Egypt
| | - Aliya Ibrar
- Department of Chemistry Faculty of Natural Sciences The University of Haripur Haripur KPK 22620 Pakistan
| | - Ayesha Mohyuddin
- Department of Chemistry Scholl of Science University of Management and Technology Lahore Pakistan
| | - Shah Muhammad Haroon
- Department of Chemistry Scholl of Science University of Management and Technology Lahore Pakistan
| | - Liaquat Ali
- Department of Applied Chemistry Government College University Faisalabad Pakistan
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