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Alali KT, Tan S, Zhu J, Liu J, Yu J, Liu Q, Wang J. High mechanical property and hydrophilic electrospun poly amidoxime/poly acrylonitrile composite nanofibrous mats for extraction uranium from seawater. CHEMOSPHERE 2024; 351:141191. [PMID: 38218238 DOI: 10.1016/j.chemosphere.2024.141191] [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: 11/13/2023] [Revised: 12/26/2023] [Accepted: 01/10/2024] [Indexed: 01/15/2024]
Abstract
Seawater reserves about 4.5 billion tons of uranium, if properly extracted, could be a sustainable green energy resource for hundreds of years, alternating its limited terrestrial ore and reducing the CO2 emitted from fossil fuels. The current seawater uranium adsorbents suffer neither economically viable nor adsorption efficiency, requiring more development to harvest satisfactorily uranium from seawater. Amidoxime-based fibrous adsorbents are the most promising adsorbents of seawater uranium due to abundant chelating sites. However, they suffer from severe shrinkage and stiffness once they dry, losing porous architecture and mechanical properties. Herein, an economical and scalable two-nozzle electrospinning technology was applied to produce poly amidoxime nanofibers (PAO NFs) supported by Poly acrylonitrile nanofibers (PAN NFs) as composite PAO/PAN nanofibrous mats with high structure stability. These PAO/PAN mats, with rapid wettability and excellent mechanical strength, show promising uranium adsorption capacities of 369.8 mg/g at seawater pH level, much higher than PAO and PAN NFs. The uranium adsorption capacity of the PAO/PAN mat reached 5.16 mg/g after 7 days of circulating (10 ppm uranium) spiked natural seawater. Importantly, the composite mat maintained its fibrous structure after five adsorption-desorption cycles with more than 80 % of its adsorption capacity, confirming its recyclability and stability. Therefore, the composite PAO/PAN mat fulfills the basic requirements for effectively and economically trapping uranium from seawater, which could be a matrix for further development.
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Affiliation(s)
- Khaled Tawfik Alali
- College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, China; Key Laboratory of Superlight Material and Surface Technology, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Sichao Tan
- College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, China.
| | - Jiahui Zhu
- Key Laboratory of Superlight Material and Surface Technology, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Jingyuan Liu
- Key Laboratory of Superlight Material and Surface Technology, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Jing Yu
- Key Laboratory of Superlight Material and Surface Technology, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Qi Liu
- Key Laboratory of Superlight Material and Surface Technology, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Jun Wang
- Key Laboratory of Superlight Material and Surface Technology, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
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Yu J, Wang J, Zhang H, Liu Q, Liu J, Zhu J, Yu J, Chen R. MOF-derived Co-Ni layered double hydroxides/polyethyleneimine modified chitosan micro-nanoreactor for high-efficiency capture of uranium from seawater. Carbohydr Polym 2024; 323:121426. [PMID: 37940255 DOI: 10.1016/j.carbpol.2023.121426] [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: 07/20/2023] [Revised: 09/02/2023] [Accepted: 09/19/2023] [Indexed: 11/10/2023]
Abstract
The preparation of powder adsorbent into microsphere adsorbent is one of the effective methods for the industrialization of uranium extraction from seawater. Herein, a MOF-derived Co-Ni layered double hydroxides/polyethyleneimine modified chitosan micro-nanoreactor (DNPM) was prepared by a simple method in this work. The microstructure and chemical structure of DNPM were comprehensively characterized. The pH value, adsorption time, initial solution concentration, temperature, competitive ions, regeneration performance, and bed column heights were investigated for the adsorption performance of DNPM by batch adsorption and fixed-bed column continuous adsorption experiments. When the contact time was 8 h, the initial concentration was 150 mg/L, and the pH value was 6, the adsorption capacity of DNPM was 334.67 mg/g. The uranium adsorption by DNPM fits with the pseudo-second-order kinetic and Langmuir models, which was a spontaneous and endothermic process. In addition, DNPM has good adsorption selectivity and reusability. The fixed-bed column continuous adsorption experiment shows that the adsorption capacity increased with the increase of bed column height. The adsorption mechanism can be attributed to coordination chelation and electrostatic interaction. In general, this work provides an effective strategy for developing environmentally friendly uranium adsorbent that can be industrially used.
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Affiliation(s)
- Jiaqi Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Hainan Harbin Institute of Technology Innovation Research Institute Co., Ltd., Hainan 572427, China
| | - Hongsen Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Qi Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Hainan Harbin Institute of Technology Innovation Research Institute Co., Ltd., Hainan 572427, China
| | - Jingyuan Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jiahui Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jing Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Rongrong Chen
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
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Yu J, Zhang H, Liu Q, Zhu J, Liu J, Chen R, Wang J. Synergistic adsorption and photocatalysis reduction of uranium by UiO-66 (Ce)-CdS/PEI-modified chitosan composite sponge. Int J Biol Macromol 2023; 253:126866. [PMID: 37703982 DOI: 10.1016/j.ijbiomac.2023.126866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/13/2023] [Accepted: 09/09/2023] [Indexed: 09/15/2023]
Abstract
Uranium is a critical element of the nuclear industry, and while extracting it from seawater is considered the most promising way to meet the growing demand for uranium, there are still some problems that still need to be solved. This work designed a UiO-66(Ce)-CdS/PEI-modified chitosan composite sponge (USPS) with an adsorption-photocatalytic synergistic effect to extract uranium efficiently. On the one hand, the drawback that the powder material is difficult to be recycled is solved. On the other hand, the uranium extraction capacity of the substrate sponge is improved. Compared with the unmodified PCS sponge, the uranium extraction capacity of the USPS-4 composite sponge is 1.63 fold higher than that of the PCS sponge. In addition, the USPS-4 composite sponge exhibits excellent selectivity and regenerability. The mechanism of uranium extraction can be summarized as the coordination chelation of uranium with active functional groups in the adsorption process and the reduction of hexavalent uranium by photogenerated electrons in the photocatalytic process. This study provides a new strategy for designing and preparing a novel material with high uranium extraction performance, easy separation, and recovery.
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Affiliation(s)
- Jiaqi Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Hongsen Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Qi Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Hainan Harbin Institute of Technology Innovation Research Institute Co., Ltd., Hainan 572427, China
| | - Jiahui Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jingyuan Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Rongrong Chen
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Hainan Harbin Institute of Technology Innovation Research Institute Co., Ltd., Hainan 572427, China.
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Wang Y, Jiang Y, Zhang Y, Liu X, Sun S, Qin S, Huang J, Chen B. Construction of amidoxime-functionalized magnetic hydroxyapatite with enhanced uranium extraction performance from aqueous solution and seawater. CHEMOSPHERE 2023; 343:140257. [PMID: 37742767 DOI: 10.1016/j.chemosphere.2023.140257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
A novel amidoxime-functionalized magnetic hydroxyapatite (AFNH) was successfuly fabricated to extract uranium from aqueous solution and seawater. The introduction of amidoxime group not only increased the number of active site of AFNH to speed up the adsorption rate and increase the extraction capacity, but also adjusted the optimal extraction pH from 4 to 8, which was beneficial for capturing uranium from seawater. The maximum adsorption capacity and adsorption efficiency at pH 8 were 945.2 mg g-1 and 99.2%, respectively. AFNH still had good removal efficiency (above 90%) after five cycles, indicating the good regeneration of AFNH. After uranium adsorption, AFNH could be easily recycled by magnetic separation due to its magnetism. In simulated seawater, AFNH also showed excellent uranium removal performance with high adsorption efficiency (84.9%) and adsorption capacity (1.70 mg g-1). Furthermore, the 14-day uranium extraction capacity of AFNH in natural seawater could reach 5.93 mg g-1. The SEM, FTIR, XRD and XPS analyses showed that the enhanced uranium extraction performance of AFNH was mainly attributed to electrostatic interaction, complexation and co-precipitation. In conclusion, AFNH was expected to be a candidate as adsorbent with great potential in extracting uranium from seawater.
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Affiliation(s)
- Yan Wang
- Nuclear Waste Disposal Engineering Research Center, School of Mathematics and Physics, Mianyang Teachers' College, Mianyang, 621000, PR China.
| | - Yueyong Jiang
- Nuclear Waste Disposal Engineering Research Center, School of Mathematics and Physics, Mianyang Teachers' College, Mianyang, 621000, PR China.
| | - Yong Zhang
- State Key Laboratory of Environment-friendly Energy Materials, Sichuan Co-Innovation Center for New Energetic Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Xiaolin Liu
- Nuclear Waste Disposal Engineering Research Center, School of Mathematics and Physics, Mianyang Teachers' College, Mianyang, 621000, PR China
| | - Sen Sun
- Nuclear Waste Disposal Engineering Research Center, School of Mathematics and Physics, Mianyang Teachers' College, Mianyang, 621000, PR China
| | - Shiyi Qin
- Nuclear Waste Disposal Engineering Research Center, School of Mathematics and Physics, Mianyang Teachers' College, Mianyang, 621000, PR China
| | - Jiaqi Huang
- Nuclear Waste Disposal Engineering Research Center, School of Mathematics and Physics, Mianyang Teachers' College, Mianyang, 621000, PR China
| | - Bowei Chen
- Nuclear Waste Disposal Engineering Research Center, School of Mathematics and Physics, Mianyang Teachers' College, Mianyang, 621000, PR China
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Li Y, Wang ZY, Ren Q, Zhang F, Li XX, Wu Q, Hua R, Yan ZY, Wang Y. N, N-bis (2-hydroxyethyl) malonamide based amidoxime functionalized polymer immobilized in biomembranes for highly selective adsorption of uranium(VI). CHEMOSPHERE 2023:139321. [PMID: 37385483 DOI: 10.1016/j.chemosphere.2023.139321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/12/2023] [Accepted: 06/23/2023] [Indexed: 07/01/2023]
Abstract
Amidoxime compounds have been widely used in metal separation and recovery because of their excellent chelating properties to metal ions, especially to uranium (VI). In this study, N, N-bis (2-hydroxyethyl) malonamide was obtained from ethanolamine and dimethyl malonate, and used to prepare a two-dimensional network polymer, then the obtained polymer was immobilized in an environmentally friendly chitosan biomembrane, which enhanced its stability and hydrophobicity, meanwhile the amidoxime functionalization was achieved by oximation reaction of bromoacetonitrile, the application of the material further extends to uranium (VI) separation in solutions. Due to the synergistic action of amide group and amidoxime group, poly (ethanolamine-malonamide) based amidoxime biomembranes (PEA-AOM) showed extraordinary adsorption effect on uranium (VI), among which the saturation adsorption capacity of PEA-AOM-2 was 748.64 mg/g. PEA-AOM-2 also had good reusability (following five cycles of adsorption-desorption, the recovery rate maintained at 88%) and selectivity for uranium (VI), showing satisfactory results in competitive ion coexistence system and simulated seawater experiments. This study demonstrated that PEA-AOM-2 provided a new option for uranium (VI) separation in complex environment and low-concentration uranium background.
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Affiliation(s)
- Yang Li
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China; Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Ze-Yang Wang
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Qi Ren
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Feng Zhang
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Xu-Xin Li
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Qiang Wu
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Rong Hua
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Ze-Yi Yan
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, Gansu, China.
| | - Yun Wang
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, China.
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Li M, Xu W, Wu X, Zhang X, Fang Q, Cai T, Yang J, Hua Y. Enhanced mechanism of calcium towards uranium incorporation and stability in magnetite during electromineralization. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131641. [PMID: 37329595 DOI: 10.1016/j.jhazmat.2023.131641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/05/2023] [Accepted: 05/13/2023] [Indexed: 06/19/2023]
Abstract
Doping uranium into a room-temperature stable Fe3O4 lattice structure effectively reduces its migration. However, the synergistic or competitive effects of coexisting ions in an aqueous solution directly affect the uranium mineralization efficiency and the structural stability of uranium-bearing Fe3O4. The effects of calcium, carbonate, and phosphate on uranium electromineralization were investigated via batch experiments and theoretical calculations. Calcium incorporated into the Fe3O4 lattice increased the level and stability of doped uranium in Fe3O4. Uranium and calcium occupied the octahedral and tetrahedral sites of Fe3O4, respectively; the formation energy was only -10.23 eV due to strong hybridization effects between Fe1s, U4f, O2p, and Ca3d orbitals. Compared to the uranium-doped Fe3O4, uranium leaching ratios decreased by 19.2 % and 48.9 % under strongly acidic and alkaline conditions after 120 days. However, high concentrations of phosphate inhibited Fe3O4 crystallization. These results should provide new avenues for the development of multi-metal co-doping technologies and mineralization optimization to treat uranium-containing complex wastewater.
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Affiliation(s)
- Mi Li
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Wanqin Xu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Xiaoyan Wu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Xiaowen Zhang
- Hengyang Key Laboratory of Soil Pollution Control and Remediation, University of South China, Hengyang 421001, China
| | - Qi Fang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Tao Cai
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Jianping Yang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yilong Hua
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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