1
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Liu Z, Xia Q, Huang B, Yi H, Yan J, Chen X, Xu F, Xi H. Prediction of Xe/Kr Separation in Metal-Organic Frameworks by a Precursor-Based Neural Network Synergistic with a Polarizable Adsorbate Model. Molecules 2023; 28:7367. [PMID: 37959783 PMCID: PMC10648455 DOI: 10.3390/molecules28217367] [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: 10/07/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Adsorption and separation of Xe/Kr are significant for making high-density nuclear energy environmentally friendly and for meeting the requirements of the gas industry. Enhancing the accuracy of the adsorbate model for describing the adsorption behaviors of Xe and Kr in MOFs and the efficiency of the model for predicting the separation potential (SP) value of Xe/Kr separation in MOFs helps in searching for promising MOFs for Xe/Kr adsorption and separation within a short time and at a low cost. In this work, polarizable and transferable models for mimic Xe and Kr adsorption behaviors in MOFs were constructed. Using these models, SP values of 38 MOFs at various temperatures and pressures were calculated. An optimal neural network model called BPNN-SP was designed to predict SP value based on physical parameters of metal center (electronegativity and radius) and organic linker (three-dimensional size and polarizability) combined with temperature and pressure. The regression coefficient value of the BPNN-SP model for each data set is higher than 0.995. MAE, MBE, and RMSE of BPNN-SP are only 0.331, -0.002, and 0.505 mmol/g, respectively. Finally, BPNN-SP was validated by experiment data from six MOFs. The transferable adsorbate model combined with the BPNN-SP model would highly improve the efficiency for designing MOFs with high performance for Xe/Kr adsorption and separation.
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Affiliation(s)
- Zewei Liu
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China; (Z.L.); (J.Y.); (X.C.)
| | - Qibin Xia
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
| | - Bichun Huang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China;
| | - Hao Yi
- South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;
| | - Jian Yan
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China; (Z.L.); (J.Y.); (X.C.)
| | - Xin Chen
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China; (Z.L.); (J.Y.); (X.C.)
| | - Feng Xu
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China; (Z.L.); (J.Y.); (X.C.)
| | - Hongxia Xi
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
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2
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Edens SJ, McGrath MJ, Guo S, Du Z, Zhou H, Zhong L, Shi Z, Wan J, Bennett TD, Qiao A, Tao H, Li N, Cowan MG. An Upper Bound Visualization of Design Trade-Offs in Adsorbent Materials for Gas Separations: CO 2 , N 2 , CH 4 , H 2 , O 2 , Xe, Kr, and Ar Adsorbents. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206437. [PMID: 36646499 PMCID: PMC10015871 DOI: 10.1002/advs.202206437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/09/2022] [Indexed: 06/17/2023]
Abstract
The last 20 years have seen many publications investigating porous solids for gas adsorption and separation. The abundance of adsorbent materials (this work identifies 1608 materials for CO2 /N2 separation alone) provides a challenge to obtaining a comprehensive view of the field, identifying leading design strategies, and selecting materials for process modeling. In 2021, the empirical bound visualization technique was applied, analogous to the Robeson upper bound from membrane science, to alkane/alkene adsorbents. These bound visualizations reveal that adsorbent materials are limited by design trade-offs between capacity, selectivity, and heat of adsorption. The current work applies the bound visualization to adsorbents for a wider range of gas pairs, including CO2 , N2 , CH4 , H2 , Xe, O2 , and Kr. How this visual tool can identify leading materials and place new material discoveries in the context of the wider field is presented. The most promising current strategies for breaking design trade-offs are discussed, along with reproducibility of published adsorption literature, and the limitations of bound visualizations. It is hoped that this work inspires new materials that push the bounds of traditional trade-offs while also considering practical aspects critical to the use of materials on an industrial scale such as cost, stability, and sustainability.
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Affiliation(s)
- Samuel J. Edens
- Department of Chemical and Process Engineering and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of CanterburyCanterbury8041New Zealand
| | - Michael J. McGrath
- Department of Chemical and Process Engineering and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of CanterburyCanterbury8041New Zealand
| | - Siyu Guo
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
| | - Zijuan Du
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
| | - Hemin Zhou
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
| | - Lingshan Zhong
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
| | - Zuhao Shi
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
- Shenzhen Research Institute of Wuhan University of TechnologyShenzhen518000China
| | - Jieshuo Wan
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
- Shenzhen Research Institute of Wuhan University of TechnologyShenzhen518000China
| | - Thomas D. Bennett
- Department of Materials Science and MetallurgyUniversity of Cambridge27 Charles Babbage RoadCambridgeCB3 0FSUK
| | - Ang Qiao
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
| | - Haizheng Tao
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
| | - Neng Li
- State Key Laboratory of Silicate Materials for ArchitecturesWuhan University of TechnologyWuhan430070China
- Shenzhen Research Institute of Wuhan University of TechnologyShenzhen518000China
| | - Matthew G. Cowan
- Department of Chemical and Process Engineering and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of CanterburyCanterbury8041New Zealand
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3
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Deng Z, Liu Y, Wan M, Ge S, Zhao Z, Chen J, Chen S, Deng S, Wang J. Breaking trade-off effect of Xe/Kr separation on microporous and heteroatoms-rich carbon adsorbents. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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Boosting Xe/Kr separation by a Mixed-linker strategy in Radiation-Resistant Aluminum-Based Metal−Organic Frameworks. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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5
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Efficient and selective capture of xenon over krypton by a window-cage metal–organic framework with parallel aromatic rings. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121281] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Niu Z, Fan Z, Pham T, Verma G, Forrest KA, Space B, Thallapally PK, Al-Enizi AM, Ma S. Self-Adjusting Metal-Organic Framework for Efficient Capture of Trace Xenon and Krypton. Angew Chem Int Ed Engl 2022; 61:e202117807. [PMID: 35020976 DOI: 10.1002/anie.202117807] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Indexed: 11/11/2022]
Abstract
The capture of the xenon and krypton from nuclear reprocessing off-gas is essential to the treatment of radioactive waste. Although various porous materials have been employed to capture Xe and Kr, the development of high-performance adsorbents capable of trapping Xe/Kr at very low partial pressure as in the nuclear reprocessing off-gas conditions remains challenging. Herein, we report a self-adjusting metal-organic framework based on multiple weak binding interactions to capture trace Xe and Kr from the nuclear reprocessing off-gas. The self-adjusting behavior of ATC-Cu and its mechanism have been visualized by the in-situ single-crystal X-ray diffraction studies and theoretical calculations. The self-adjusting behavior endows ATC-Cu unprecedented uptake capacities of 2.65 and 0.52 mmol g-1 for Xe and Kr respectively at 0.1 bar and 298 K, as well as the record Xe capture capability from the nuclear reprocessing off-gas. Our work not only provides a benchmark Xe adsorbent but proposes a new route to construct smart materials for efficient separations.
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Affiliation(s)
- Zheng Niu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Ziwen Fan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Tony Pham
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA
| | - Gaurav Verma
- Department of Chemistry, University of North Texas, Denton, TX 76201, USA
| | - Katherine A Forrest
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA
| | - Brian Space
- Department of Chemistry, North Carolina State University, 2700 Stinson Dr., Raleigh, NC 27607, USA
| | - Praveen K Thallapally
- Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Abdullah M Al-Enizi
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Shengqian Ma
- Department of Chemistry, University of North Texas, Denton, TX 76201, USA
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7
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Sinha S, De S, Mishra D, Shekhar S, Agarwal A, Sahu KK. Phosphonomethyl iminodiacetic acid functionalized metal organic framework supported PAN composite beads for selective removal of La(III) from wastewater: Adsorptive performance and column separation studies. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127802. [PMID: 34896724 DOI: 10.1016/j.jhazmat.2021.127802] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/15/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
The rare earth elements being toxic in nature are being accumulated in water bodies as their industrial usage is growing exponentially, thus their efficient separation holds an immense significance. Herein, ligand functionalized metal organic framework (MOF), Phosphonomethyl iminodiacetic acid coordinated at Fe-BTC, was synthesized post-synthetically and incorporated subsequently in polyacrylonitrile polymer to prepare the composite beads via nonsolvent induced-phase-inversion technique for selective adsorption of La(III) from the wastewater in batch and dynamic column mode. XPS NMR, and FTIR were used to establish the interaction between functionalized ligand and unsaturated metal nodes of MOF. The adsorption capacity was 232.5 mg/g and 77.51 mg/g at 298 K of the functionalized MOF and composite beads respectively. Adsorption kinetics followed a pseudo-second order rate equation, and isotherm indicated the best fitting with Langmuir model. The dynamic behavior of the adsorption column packed with MOF/Polymer beads was fairly described by the Thomas model. The breakthrough time of 23.2 h could be attained with 12 cm of bed height and 10 ml/min of flow rate. These MOF/Polymer beads shown the selectivity of La over transitional metals were recycled over 5 times with about 15% loss of adsorption capacity. The findings provide suggestive insights of the potential use of functionalized MOF towards the separation of the rare earth element.
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Affiliation(s)
- Shivendra Sinha
- MER Division, National Metallurgical Laboratory, Jamshedpur, India; Academy of Scientific and Innovative Research, New Delhi, India
| | - S De
- Chemical Engineering Department, IIT Kharagpur, India.
| | - D Mishra
- MER Division, National Metallurgical Laboratory, Jamshedpur, India.
| | - S Shekhar
- MER Division, National Metallurgical Laboratory, Jamshedpur, India
| | - A Agarwal
- MER Division, National Metallurgical Laboratory, Jamshedpur, India
| | - K K Sahu
- MER Division, National Metallurgical Laboratory, Jamshedpur, India
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8
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Niu Z, Fan Z, Pham T, Verma G, Forrest KA, Space B, Thallapally PK, Al-Enizi AM, Ma S. Self‐Adjusting Metal‐Organic Framework for Efficient Capture of Trace Xenon and Krypton. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zheng Niu
- Soochow University College of Chemistry, Chemical Engineering and Materials Science CHINA
| | - Ziwen Fan
- Soochow University College of Chemistry, Chemical Engineering and Materials Science CHINA
| | - Tony Pham
- University of South Florida Department of Chemistry UNITED STATES
| | - Gaurav Verma
- University of North Texas Department of Chemistry UNITED STATES
| | | | - Brian Space
- NC State: North Carolina State University Department of Chemistry UNITED STATES
| | - Praveen K. Thallapally
- PNNL: Pacific Northwest National Laboratory Physical and Computational Science Directorate UNITED STATES
| | | | - Shengqian Ma
- University of North Texas Department of Chemistry 1508 W Mulberry St 76201 Denton UNITED STATES
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9
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Wei Y, Qi F, Li Y, Min X, Wang Q, Hu J, Sun T. Efficient Xe selective separation from Xe/Kr/N 2 mixtures over a microporous CALF-20 framework. RSC Adv 2022; 12:18224-18231. [PMID: 35800318 PMCID: PMC9214609 DOI: 10.1039/d2ra02768b] [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: 05/01/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022] Open
Abstract
Capture and separation of xenon and krypton by adsorption are particularly important issues at room temperature in both industry and environmental security. Herein, hydrophobic zinc-based frameworks (CALF-20) were synthesized to separate mixtures of Xe, Kr and N2, and adsorptive properties and stability of as-prepared samples were investigated in detail. CALF-20 with the 1,2,4-triazole and oxalate as the ligand and Zn metal centers showed a surface area of 442 m2 g−1 and average pore size of 6–7 Å, and exhibited excellent stability in a high-temperature acidic solution. The single and binary adsorption datum represented that CALF-20 has a high Xe uptake of 2.45 mmol g−1 and Xe/Kr selectivity of 13.2, as well as high Xe/N2 selectivity of 62 at 298 K and 1.0 bar. The initial adsorption heat and Henry's constant of Xe on the CALF-20 were determined to be 31.7 kJ mol−1 and 21.77 mmol g−1 bar−1 by isotherms, indicating a suitable affinity for Xe capture and Xe/Kr separation. In addition, simulation results indicated that the simulated adsorption isotherms and adsorption heats are well-matched with experimental results, and the adsorption affinity from the C–H groups of 1,2,4-trizole ring for Xe is significantly stronger than that for Kr. Factoring in the Xe uptake, selectivity and Henry's constant, hydrophobic CALF-20 exceeded most MOFs in Xe/Kr/N2 mixture separation; in particular, high-temperature, gaseous water and acid solution have no negative effects on Xe adsorption.![]()
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Affiliation(s)
- Yi Wei
- Marine Engineering College, Dalian Maritime University, Dalian 116026, China
| | - Fengshi Qi
- Marine Engineering College, Dalian Maritime University, Dalian 116026, China
| | - Yunhe Li
- Marine Engineering College, Dalian Maritime University, Dalian 116026, China
| | - Xiubo Min
- Marine Engineering College, Dalian Maritime University, Dalian 116026, China
| | - Qi Wang
- Marine Engineering College, Dalian Maritime University, Dalian 116026, China
| | - Jiangliang Hu
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
| | - Tianjun Sun
- Marine Engineering College, Dalian Maritime University, Dalian 116026, China
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10
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Wu X, Li ZJ, Zhou H, Li L, Qian Z, Qian N, Chu X, Liu W. A microporous Ce-based MOF with the octahedron cage for highly selective adsorption towards xenon over krypton. RSC Adv 2021; 11:30918-30924. [PMID: 35498920 PMCID: PMC9044799 DOI: 10.1039/d1ra04824d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/25/2021] [Indexed: 01/01/2023] Open
Abstract
The collection of high-purity noble gases with recyclable nuclides provides substantial economic benefits and minimizes the risk of environmental pollution, which is a future development tendency for nuclear industries. Here, Ce-SINAP-1, with its radiation-resistance (up to 20 kGy of γ-ray irradiation) and suitable pore channels for the separation of noble gases (Ar, Kr and Xe), was synthesized. Ce-SINAP-1 exhibited the selective adsorption of Xe (2.02 mmol g−1) over Kr (0.67 mmol g−1) and Ar (0.27 mmol g−1) at 293 K (1 bar) with a Henry's selectivity of 8.24 (Xe/Kr), and an ideal adsorbed solution theory selectivity of 14.9 (Xe : Kr 20 : 80). The result of the dynamic breakthrough experiment also indicates a good separation for Xe/Kr with Ar. A high selectivity of Xe over Kr at 293 K was achieved by a 3D Ce-based organic framework due to the geometric features. Favorable thermal stability and ionizing radio-resistance render it a promising candidate for radioactive inert gases treatment.![]()
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Affiliation(s)
- Xiaoling Wu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China .,University of Chinese Academy of Sciences Beijing 100049 China
| | - Zi-Jian Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China .,University of Chinese Academy of Sciences Beijing 100049 China
| | - He Zhou
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China .,University of Chinese Academy of Sciences Beijing 100049 China
| | - Lin Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China .,University of Chinese Academy of Sciences Beijing 100049 China
| | - Zhenghua Qian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China
| | - Nan Qian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China
| | - Xinxin Chu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China .,University of Chinese Academy of Sciences Beijing 100049 China
| | - Wei Liu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China .,University of Chinese Academy of Sciences Beijing 100049 China
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11
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Wu XL, Li ZJ, Zhou H, Yang G, Liu XY, Qian N, Wang W, Zeng YS, Qian ZH, Chu XX, Liu W. Enhanced Adsorption and Separation of Xenon over Krypton via an Unsaturated Calcium Center in a Metal-Organic Framework. Inorg Chem 2021; 60:1506-1512. [PMID: 33474930 DOI: 10.1021/acs.inorgchem.0c02841] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Krypton (Kr) and xenon (Xe) are nowadays widely applied in technical and industrial fields. Separating and collecting highly pure Xe from nuclear facilities are necessary and urgent. However, the technology is limited due to the inert nature of Xe and other interferential factors. In this work, a calcium-based metal-organic framework, Ca-SINAP-1, which comprises a three-dimensional microporous framework with a suitable pore width, was researched for xenon and krypton separation through both experimental and theoretical methods. Ca-SINAP-1, synthesized in solvothermal and gamma ray conditions, features accessible open-metal sites, exhibits a high Xe/Kr selectivity of 10.32, and owns a Xe adsorption capacity of 2.87 mmol/g at room temperature (1.0 bar). Particularly, its excellent chemical stability (from pH 2 to 13) and thermal stability (up to 550 °C), as well as radiation-resistance (up to 400 kGy β irradiations), render this material a promising candidate for radioactive inert gases treatment.
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Affiliation(s)
- Xiao-Ling Wu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Zi-Jian Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - He Zhou
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Guo Yang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Xi-Yan Liu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Nan Qian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Wei Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - You-Shi Zeng
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Zheng-Hua Qian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Xin-Xin Chu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
| | - Wei Liu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
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12
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Jia Z, Yan Z, Zhang J, Zou Y, Qi Y, Li X, Li Y, Guo X, Yang C, Ma L. Pore Size Control via Multiple-Site Alkylation to Homogenize Sub-Nanoporous Covalent Organic Frameworks for Efficient Sieving of Xenon/Krypton. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1127-1134. [PMID: 33371663 DOI: 10.1021/acsami.0c14610] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Among various fission products generated in nuclear reactors, xenon and krypton are two important fission gases with high flow, diffusivity, and radioactivity. Moreover, xenon isolated from these products is an expensive industrial resource with wide applications in medicine and lighting, which makes the development of efficient methods for separation of xenon/krypton significant. However, it is usually difficult for xenon/krypton to be adsorbed by chemical adsorbents due to their inert gas properties, and sub-nanoporous adsorbents proven to be workable for the separation of xenon/krypton are still hard to prepare and regulate the pore size. Herein, we report two novel sub-nanoporous covalent organic frameworks (COFs), which were applied to the sieving of xenon/krypton for the first time. The sub-nanoporous COFs were synthesized via aldehyde-amine polycondensation reactions and the subsequent pore size regulation and homogenization process by using a facile, operational, and efficient multiple-site alkylation strategy. Impressively, the as-prepared sub-nanoporous COFs realized the efficient adsorption and sieving of xenon/krypton owing to their slightly larger pore sizes (∼7 Å) than the dynamic diameters of xenon/krypton and their larger pore volumes. The maximum adsorption capacity for xenon is up to 85.6 cm3/g, and the xenon/krypton selectivity can reach to 9.7. Moreover, the as-prepared COFs possess good γ-ray irradiation stability, which endows them with great potentials for the sieving of radioactive xenon/krypton in the practical application. The multiple-site alkylation strategy proposed in this study provides a valuable approach for the pore construction and control of the porous materials, especially the sub-nanoporous adsorption materials.
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Affiliation(s)
- Zhimin Jia
- College of Chemistry, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Zhaotong Yan
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, P.R. China
| | - Jie Zhang
- College of Environment and Ecology, Chengdu University of Technology, No.1, Dongsanlu, Erxianqiao, Chengdu 610059, P.R. China
| | - Yingdi Zou
- College of Chemistry, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Yue Qi
- College of Chemistry, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Xiaofeng Li
- College of Chemistry, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Yang Li
- College of Chemistry, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Xinghua Guo
- College of Chemistry, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, P.R. China
| | - Chuting Yang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, P.R. China
| | - Lijian Ma
- College of Chemistry, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, P.R. China
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13
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Xiao Y, Song B, Chen Y, Cheng L, Ren Q. ZIF-67 with precursor concentration-dependence morphology for aerobic oxidation of toluene. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121597] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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An electrochemical sensor based on MOF-derived NiO@ZnO hollow microspheres for isoniazid determination. Mikrochim Acta 2020; 187:380. [DOI: 10.1007/s00604-020-04305-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/27/2020] [Indexed: 02/07/2023]
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15
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Wang L, Chen P, Dong X, Zhang W, Zhao S, Xiao S, Ouyang Y. Porous MOF-808@PVDF beads for removal of iodine from gas streams. RSC Adv 2020; 10:44679-44687. [PMID: 35516247 PMCID: PMC9058509 DOI: 10.1039/d0ra08741f] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 11/30/2020] [Indexed: 12/13/2022] Open
Abstract
The removal of radioiodine from the exhaust gas streams produced in spent fuel reprocessing plants is of paramount importance for the nuclear fuel cycle's security. Here, millimeter-sized poly(vinylidene fluoride) (PVDF) composites containing zirconium-based metal–organic frameworks, MOF-808, were synthesized by a facile phase inversion method to adsorb the volatile iodine. MOF-808@PVDF composites have inherited the crystallinity and pore accessibility of MOF-808, as well as its outstanding iodine capture performance. The MOF-808@PVDF composite beads containing 70 wt% MOFs, exhibited ultrahigh iodine adsorption capacity, 1.42 g g−1 at 80 °C, much higher than other millimeter-sized adsorbents reported in the literature. Raman mapping suggests that the negative iodine ions were formed at the early stage of iodine adsorption, while the close-packed iodine molecules were subsequently trapped in the frames. Using dynamic adsorption, the influences of iodine concentration, operating temperature and humidity were analyzed to evaluate its application potential in industrial conditions. The iodine adsorption capacity could reach 1.36 g g−1 at 80 °C, 100 °C and 120 °C in flow gas. And the elevated temperature (120 °C) is beneficial to accelerating the mass transfer of iodine vapor, as well as slightly inhibiting the competitive adsorption of water molecules under humidity. Besides, only one-third of the loaded iodine was released in nitrogen purging after saturated adsorption. The remaining majority was trapped firmly by the beads due to their strong interactions with the frameworks. This work highlights the millimeter-sized MOF-808@polymer composite beads with ultrahigh iodine adsorption capacity, providing experimental references for their application in radioiodine removal from hot and moist streams. Porous millimeter-sized MOF-808@PVDF composite beads with ultrahigh iodine adsorption capacity for capture of radioiodine from gas streams.![]()
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Affiliation(s)
- Lingyu Wang
- Department of Radiochemistry
- China Institute of Atomic Energy
- Beijing 102413
- China
| | - Peng Chen
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science & Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
| | - Xiuting Dong
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science & Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
| | - Wen Zhang
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science & Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
| | - Song Zhao
- State Key Laboratory of Chemical Engineering
- Tianjin Key Laboratory of Membrane Science & Desalination Technology
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
| | - Songtao Xiao
- Department of Radiochemistry
- China Institute of Atomic Energy
- Beijing 102413
- China
| | - Yinggen Ouyang
- Department of Radiochemistry
- China Institute of Atomic Energy
- Beijing 102413
- China
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