1
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Tong S, Zhu J, Wang Z, Yan J. Highly Selective SO 2 Capture by Triazine-Functionalized Triphenylamine-Based Nanoporous Organic Polymers. ACS APPLIED MATERIALS & INTERFACES 2024; 16:42717-42725. [PMID: 39086140 DOI: 10.1021/acsami.4c08905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
The emissions of sulfur dioxide (SO2) from combustion exhaust gases pose significant risks to public health and the environment due to their harmful effects. Therefore, the development of highly efficient adsorbent polymers capable of capturing SO2 with high capacity and selectivity has emerged as a critical challenge in recent years. However, existing polymers often exhibit poor SO2/CO2 and SO2/N2 selectivity. Herein, we report two triazine-functionalized triphenylamine-based nanoporous organic polymers (ANOP-6 and ANOP-7) that demonstrate both good SO2 uptake and high SO2/CO2 and SO2/N2 selectivity. These polymers were synthesized through cost-effective Friedel-Crafts reactions using cyanuric chloride, 3,6-diphenylaminecarbazole, and 2,2',7,7'-tetrakis(diphenylamino)-9,9'-spirobifluorene. The resultant ANOPs are composed of triazine and triphenylamine units and feature an ultramicroporous structure. Remarkably, ANOPs exhibit impressive adsorption capacities for SO2, with uptakes of approximately 3.31-3.72 mmol·g-1 at 0.1 bar, increasing to 9.52-9.94 mmol·g-1 at 1 bar. The static adsorption isotherms effectively illustrate the ability of ANOPs to separate SO2 from SO2/CO2 and SO2/N2 mixtures. At 298 K and 1 bar, ANOP-6 shows outstanding selectivity toward SO2/CO2 (248) and SO2/N2 (13146), surpassing all previously reported triazine-based nanoporous organic polymers. Additionally, dynamic breakthrough tests demonstrate the superior separation properties of ANOPs for SO2 from an SO2/CO2/N2 mixture. ANOPs exhibit a breakthrough time of 73.1 min·g-1 and a saturated SO2 capacity of 0.53 mmol·g-1. These results highlight the exceptional adsorption properties of ANOPs for SO2, indicating their promising potential for the highly efficient capture of SO2 from flue gas.
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Affiliation(s)
- Sihan Tong
- International Scientific and Technological Cooperation Base of Industrial Solid Waste Cyclic Utilization and Advanced Materials, School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, China
| | - Jiangli Zhu
- International Scientific and Technological Cooperation Base of Industrial Solid Waste Cyclic Utilization and Advanced Materials, School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, China
| | - Zefeng Wang
- College of Ecology, Lishui University, Lishui 323000, China
- R&D Center of Green Manufacturing New Materials and Technology of Synthetic Leather, Sichuan University-Lishui University, Lishui 323000, China
| | - Jun Yan
- International Scientific and Technological Cooperation Base of Industrial Solid Waste Cyclic Utilization and Advanced Materials, School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, China
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2
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Fu XP, Liu QY, Wang YL. Metal-Organic Framework Featuring Cubic Caged Structures for One-Step Ethylene Purification from Ethylene/Ethane Mixtures. Inorg Chem 2024; 63:12309-12315. [PMID: 38889441 DOI: 10.1021/acs.inorgchem.4c01733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Separation of C2H6/C2H4 mixtures is of significant importance in the chemical industry but remains a challenge due to the physicochemical similarities of C2H6 and C2H4. Herein, a metal-organic framework (MOF), [Zn4(μ4-O)(PCTF)3]n (Zn-PCTF) (PCTF2-= 5-trifluoromethyl-1H-pyrazole-4-carboxylic), is provided for the removal of C2H6 from C2H6/C2H4 mixtures. Zn-PCTF displays a three-dimensional framework featuring one-dimensional pore channels with periodic bottleneck segments. The well-balanced C2H6 adsorption capacity (79.0 cm3 g-1 at 298 K) and C2H6/C2H4 selectivity (1.8) for Zn-PCTF under ambient conditions boost Zn-PCTF with highly promising potentials for efficient purification of C2H4 from C2H6/C2H4 mixtures, which is verified by the dynamic column breakthrough experiments. The well-matched caged pores and suitable pore chemistry (particularly the presence of abundant Lewis base sites (N, O, and F) on the pore surfaces) for C2H6 account for the high-performance C2H6/C2H4 separation of Zn-PCTF unveiled by computational simulations.
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Affiliation(s)
- Xing-Ping Fu
- Department of Ecological and Resources Engineering, Fujian Key Laboratory of Eco-industrial Green Technology, Wuyi University, Wuyishan ,Fujian 354300, P. R. China
| | - Qing-Yan Liu
- Department of Ecological and Resources Engineering, Fujian Key Laboratory of Eco-industrial Green Technology, Wuyi University, Wuyishan ,Fujian 354300, P. R. China
- College of Chemistry and Chemical Engineering, National Engineering Research Centre for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang ,Jiangxi 330022, P. R. China
| | - Yu-Ling Wang
- College of Chemistry and Chemical Engineering, National Engineering Research Centre for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang ,Jiangxi 330022, P. R. China
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3
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Huang Y, Feng Y, Li Y, Tan K, Tang J, Bai J, Duan J. Immobilization of Amino-site into a Pore-Partitioned Metal-Organic Framework for Highly Efficient Separation of Propyne/Propylene. Angew Chem Int Ed Engl 2024; 63:e202403421. [PMID: 38533686 DOI: 10.1002/anie.202403421] [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: 02/19/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 03/28/2024]
Abstract
Adsorptive separation of propyne/propylene (C3H4/C3H6) is a crucial yet complex process, however, it remains a great difficulty in developing porous materials that can meet the requirements for practical applications, particularly with an exceptional ability to bind and store trace amounts of C3H4. Functionalization of pore-partitioned metal-organic frameworks (ppMOFs) is methodically suited for this challenge owing to the possibility of dramatically increasing binding sites on highly porous and confined domains. We here immobilized Lewis-basic (-NH2) and Lewis-acidic (-NO2) sites on this platform. Along with an integrated nature of high uptake of C3H4 at 1 kPa, high uptake difference of C3H4-C3H6, moderated binding strength, promoted kinetic selectivity, trapping effect and high stability, the NH2-decorated ppMOF (NTU-100-NH2) can efficiently produce polymer-grade C3H6 (99.95 %, 8.3 mmol ⋅ g-1) at room temperature, which is six times more than the NO2-decorated crystal (NTU-100-NO2). The in situ infrared spectroscopy, crystallographic analysis, and sequential blowing tests showed that the densely packed amino group in this highly porous system has a unique ability to recognize and stabilize C3H4 molecules. Moving forward, the strategy of organic functionalization can be extended to other porous systems, making it a powerful tool to customize advanced materials for challenging tasks.
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Affiliation(s)
- Yuhang Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yanfei Feng
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Yi Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Kui Tan
- Department of Chemistry, University of North Texas, Denton, TX 76203, United States
| | - Jie Tang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Junfeng Bai
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Jingui Duan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, China
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4
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Sikdar N, Laha S, Jena R, Dey A, Rahimi FA, Maji TK. An adsorbate biased dynamic 3D porous framework for inverse CO 2 sieving over C 2H 2. Chem Sci 2024; 15:7698-7706. [PMID: 38784756 PMCID: PMC11110155 DOI: 10.1039/d3sc06611h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 04/07/2024] [Indexed: 05/25/2024] Open
Abstract
Separating carbon dioxide (CO2) from acetylene (C2H2) is one of the most critical and complex industrial separations due to similarities in physicochemical properties and molecular dimensions. Herein, we report a novel Ni-based three-dimensional framework {[Ni4(μ3-OH)2(μ2-OH2)2(1,4-ndc)3](3H2O)}n (1,4-ndc = 1,4-naphthalenedicarboxylate) with a one-dimensional pore channel (3.05 × 3.57 Å2), that perfectly matches with the molecular size of CO2 and C2H2. The dehydrated framework shows structural transformation, decorated with an unsaturated Ni(ii) centre and pendant oxygen atoms. The dynamic nature of the framework is evident by displaying a multistep gate opening type CO2 adsorption at 195, 273, and 298 K, but not for C2H2. The real time breakthrough gas separation experiments reveal a rarely attempted inverse CO2 selectivity over C2H2, attributed to open metal sites with a perfect pore aperture. This is supported by crystallographic analysis, in situ spectroscopic inspection, and selectivity approximations. In situ DRIFTS measurements and DFT-based theoretical calculations confirm CO2 binding sites are coordinatively unsaturated Ni(ii) and carboxylate oxygen atoms, and highlight the influence of multiple adsorption sites.
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Affiliation(s)
- Nivedita Sikdar
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), International Centre for Materials Science (ICMS), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India +91-80-2208-2766 +91-80-2208-2826
| | - Subhajit Laha
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), International Centre for Materials Science (ICMS), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India +91-80-2208-2766 +91-80-2208-2826
| | - Rohan Jena
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), International Centre for Materials Science (ICMS), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India +91-80-2208-2766 +91-80-2208-2826
| | - Anupam Dey
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), International Centre for Materials Science (ICMS), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India +91-80-2208-2766 +91-80-2208-2826
| | - Faruk Ahamed Rahimi
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), International Centre for Materials Science (ICMS), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India +91-80-2208-2766 +91-80-2208-2826
| | - Tapas Kumar Maji
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), International Centre for Materials Science (ICMS), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur Bangalore 560064 India +91-80-2208-2766 +91-80-2208-2826
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5
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Zhu J, Ke T, Yang L, Bao Z, Zhang Z, Su B, Ren Q, Yang Q. Optimizing Trace Acetylene Removal from Acetylene/Ethylene Mixture in a Flexible Metal-Organic Framework by Crystal Downsizing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22455-22464. [PMID: 38642370 DOI: 10.1021/acsami.4c03517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/22/2024]
Abstract
Improving the gas separation performance of metal-organic frameworks (MOFs) by crystal downsizing is an important but often overlooked issue. Here, we report three different-sized flexible ZUL-520 MOFs (according to the crystal size from large to small, the three samples are, respectively, named ZUL-520-0, ZUL-520-1, and ZUL-520-2) with the same chemical structure for optimizing trace acetylene (C2H2) removal from acetylene/ethylene (C2H2/C2H4) mixture. The three differently sized activated ZUL-520 (denoted as ZUL-520a) exhibited almost identical C2H2 uptake of 4.8 mmol/g at 100 kPa, while the C2H2 uptake at 1 kPa increased with a downsizing crystal. The C2H2 uptake of activated ZUL-520-2 (denoted as ZUL-520-2a) at 1 kPa was ∼55% higher than that of activated ZUL-520-0 (denoted as ZUL-520-0a). The adsorption isotherms and adsorption kinetics validated that gas adsorptive separation is governed not only by adsorption thermodynamics but also by adsorption kinetics. In addition, all three different-sized ZUL-520a MOFs showed high C2H2/C2H4 selectivity. Grand canonical Monte Carlo (GCMC) simulations and dispersion-corrected density functional theory (DFT-D) computations illustrated a plausible mechanism of C2H2 adsorption in MOFs. Importantly, breakthrough experiments demonstrated that ZUL-520a can effectively separate the C2H2/C2H4 (1/99, v/v) mixture and the C2H4 productivity obtained by ZUL-520-2a was much higher than that by ZUL-520-0a. Our work may provide an easy but powerful strategy for upgrading the performance of gas adsorptive separation in MOFs.
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Affiliation(s)
- Jianyao Zhu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Tian Ke
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Liu Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Zongbi Bao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Zhiguo Zhang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Baogen Su
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Qilong Ren
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Qiwei Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
- Institute of Zhejiang University-Quzhou, Quzhou 324000, China
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6
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Liu S, Huang Y, Wan J, Zheng JJ, Krishna R, Li Y, Ge K, Tang J, Duan J. Fine-regulation of gradient gate-opening in nanoporous crystals for sieving separation of ternary C3 hydrocarbons. Chem Sci 2024; 15:6583-6588. [PMID: 38699248 PMCID: PMC11062114 DOI: 10.1039/d3sc05489f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 03/17/2024] [Indexed: 05/05/2024] Open
Abstract
The adsorptive separation of ternary propyne (C3H4)/propylene (C3H6)/propane (C3H8) mixtures is of significant importance due to its energy efficiency. However, achieving this process using an adsorbent has not yet been accomplished. To tackle such a challenge, herein, we present a novel approach of fine-regulation of the gradient of gate-opening in soft nanoporous crystals. Through node substitution, an exclusive gate-opening to C3H4 (17.1 kPa) in NTU-65-FeZr has been tailored into a sequential response of C3H4 (1.6 kPa), C3H6 (19.4 kPa), and finally C3H8 (57.2 kPa) in NTU-65-CoTi, of which the gradient framework changes have been validated by in situ powder X-ray diffractions and modeling calculations. Such a significant breakthrough enables NTU-65-CoTi to sieve the ternary mixtures of C3H4/C3H6/C3H8 under ambient conditions, particularly, highly pure C3H8 (99.9%) and C3H6 (99.5%) can be obtained from the vacuum PSA scheme. In addition, the fully reversible structural change ensures no loss in performance during the cycling dynamic separations. Moving forward, regulating gradient gate-opening can be conveniently extended to other families of soft nanoporous crystals, making it a powerful tool to optimize these materials for more complex applications.
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Affiliation(s)
- Shuang Liu
- Henan Engineering Research Center for Green Synthesis of Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University Shangqiu 476000 China
| | - Yuhang Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University Nanjing 211816 China
| | - Jingmeng Wan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University Nanjing 211816 China
| | - Jia-Jia Zheng
- Laboratory of Theoretical and Computational Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences Beijing 100190 China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | - Yi Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University Nanjing 211816 China
| | - Kai Ge
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University Nanjing 211816 China
| | - Jie Tang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University Nanjing 211816 China
| | - Jingui Duan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University Nanjing 211816 China
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7
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Wang GD, Li YZ, Krishna R, Zhang WY, Hou L, Wang YY, Zhu Z. Scalable Synthesis of Robust MOF for Challenging Ethylene Purification and Propylene Recovery with Record Productivity. Angew Chem Int Ed Engl 2024; 63:e202319978. [PMID: 38369652 DOI: 10.1002/anie.202319978] [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: 12/24/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/20/2024]
Abstract
Ethylene (C2H4) purification and propylene (C3H6) recovery are highly relevant in polymer synthesis, yet developing physisorbents for these industrial separation faces the challenges of merging easy scalability, economic feasibility, high moisture stability with great separation efficiency. Herein, we reported a robust and scalable MOF (MAC-4) for simultaneous recovery of C3H6 and C2H4. Through creating nonpolar pores decorated by accessible N/O sites, MAC-4 displays top-tier uptakes and selectivities for C2H6 and C3H6 over C2H4 at ambient conditions. Molecular modelling combined with infrared spectroscopy revealed that C2H6 and C3H6 molecules were trapped in the framework with stronger contacts relative to C2H4. Breakthrough experiments demonstrated exceptional separation performance for binary C2H6/C2H4 and C3H6/C2H4 as well as ternary C3H6/C2H6/C2H4 mixtures, simultaneously affording record productivities of 27.4 and 36.2 L kg-1 for high-purity C2H4 (≥99.9 %) and C3H6 (≥99.5 %). MAC-4 was facilely prepared at deckgram-scale under reflux condition within 3 hours, making it as a smart MOF to address challenging gas separations.
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Affiliation(s)
- Gang-Ding Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yong-Zhi Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
- School of Materials and Physics, China University of Mining and Technology, Xuzhou, 221116, P. R. China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Wen-Yan Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Lei Hou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane, 4072, Australia
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8
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Ercakir G, Aksu GO, Altintas C, Keskin S. Hierarchical Computational Screening of Quantum Metal-Organic Framework Database to Identify Metal-Organic Frameworks for Volatile Organic-Compound Capture from Air. ACS ENGINEERING AU 2023; 3:488-497. [PMID: 38144678 PMCID: PMC10739624 DOI: 10.1021/acsengineeringau.3c00039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 12/26/2023]
Abstract
The design and discovery of novel porous materials that can efficiently capture volatile organic compounds (VOCs) from air are critical to address one of the most important challenges of our world, air pollution. In this work, we studied a recently introduced metal-organic framework (MOF) database, namely, quantum MOF (QMOF) database, to unlock the potential of both experimentally synthesized and hypothetically generated structures for adsorption-based n-butane (C4H10) capture from air. Configurational Bias Monte Carlo (CBMC) simulations were used to study the adsorption of a quaternary gas mixture of N2, O2, Ar, and C4H10 in QMOFs for two different processes, pressure swing adsorption (PSA) and vacuum-swing adsorption (VSA). Several adsorbent performance evaluation metrics, such as C4H10 selectivity, working capacity, the adsorbent performance score, and percent regenerability, were used to identify the best adsorbent candidates, which were then further studied by molecular simulations for C4H10 capture from a more realistic seven-component air mixture consisting of N2, O2, Ar, C4H10, C3H8, C3H6, and C2H6. Results showed that the top five QMOFs have C4H10 selectivities between 6.3 × 103 and 9 × 103 (3.8 × 103 and 5 × 103) at 1 bar (10 bar). Detailed analysis of the structure-performance relations showed that low/mediocre porosity (0.4-0.6) and narrow pore sizes (6-9 Å) of QMOFs lead to high C4H10 selectivities. Radial distribution function analyses of the top materials revealed that C4H10 molecules tend to confine close to the organic parts of MOFs. Our results provided the first information in the literature about the VOC capture potential of a large variety and number of MOFs, which will be useful to direct the experimental efforts to the most promising adsorbent materials for C4H10 capture from air.
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Affiliation(s)
- Goktug Ercakir
- Department of Chemical and
Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Gokhan Onder Aksu
- Department of Chemical and
Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Cigdem Altintas
- Department of Chemical and
Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Seda Keskin
- Department of Chemical and
Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
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9
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Yang L, Gao Q, Zhang YM, Wang R, Chen LZ. Efficient C 2H 6/C 2H 4 adsorption separation by a microporous heterometal-organic framework. J Colloid Interface Sci 2023; 652:1093-1098. [PMID: 37657209 DOI: 10.1016/j.jcis.2023.08.140] [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: 05/09/2023] [Revised: 08/15/2023] [Accepted: 08/22/2023] [Indexed: 09/03/2023]
Abstract
Purification of ethylene (C2H4) is an essential and energy-intensive process in the petrochemical industry. Adsorption separation using ethane (C2H6)-selective porous adsorbents is a highly efficient and straightforward method for obtaining polymer-grade C2H4 from a binary C2H6/C2H4 mixture. However, the design and construction of C2H6-selective adsorbents are very challenging tasks. Herein, we demonstrate a microporous heterometal-organic framework, CuIn(ina)4, can preferentially enrich C2H6 than C2H4. Experimental results revealed that CuIn(ina)4 exhibited remarkable separation performance for the C2H6/C2H4 mixture with a high C2H6 loading capacity (3.3 mmol/g), high IAST selectivity (2.3) and separation potential (1578 mmol/L for equimolar C2H6/C2H4 mixture) under ambient conditions. The effectiveness of CuIn(ina)4 for C2H6/C2H4 adsorption separation was confirmed by theoretical calculations and breakthrough experiments.
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Affiliation(s)
- Lan Yang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, PR China
| | - Qiang Gao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, PR China.
| | - Yan-Mei Zhang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, PR China
| | - Ruihan Wang
- MOE Key Laboratory of Green Chemistry and Technology, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, PR China
| | - Li-Zhuang Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, PR China.
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10
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Wang GD, Li YZ, Shi WJ, Hou L, Wang YY, Zhu Z. Active Sites Decorated Nonpolar Pore-Based MOF for One-step Acquisition of C 2 H 4 and Recovery of C 3 H 6. Angew Chem Int Ed Engl 2023; 62:e202311654. [PMID: 37679304 DOI: 10.1002/anie.202311654] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/09/2023]
Abstract
Herein, a 2-fold interpenetrated metal-organic framework (MOF) Zn-BPZ-TATB with accessible N/O active sites in nonpolar pore surfaces was reported for one-step C2 H4 purification from C2 H6 or C3 H6 mixtures as well as recovery of C3 H6 from C2 H6 /C3 H6 /C2 H4 mixtures. The MOF exhibits the favorable C2 H6 and C3 H6 uptakes (>100 cm3 g-1 at 298 K under 100 kPa) as well as selective adsorption of C2 H6 and C3 H6 over C2 H4 . The C3 H6 - and C2 H6 -selective feature were investigated detailedly by experimental tests as well as sorption kinetic studyies. Molecular modelling revealed the multiple interactions between C3 H6 or C2 H6 molecules and methyl groups as well as triazine rings in pores. Zn-BPZ-TATB not only can directly generate 323.4 L kg-1 and 15.4 L kg-1 of high-purity (≥99.9 %) C2 H4 from C3 H6 /C2 H4 and C2 H6 /C2 H4 mixtures, but also provide a large high-purity (≥99.5 %) C3 H6 recovery capacity of 60.1 L kg-1 from C3 H6 /C2 H4 mixtures. More importantly, the high-purity C3 H6 (≥99.5 %) and C2 H4 (≥99.9 %) with the productivities of 38.2 and 12.7 L kg-1 can be simultaneously obtained from C2 H6 /C3 H6 /C2 H4 mixtures through a single adsorption/desorption cycle.
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Affiliation(s)
- Gang-Ding Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yong-Zhi Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Wen-Juan Shi
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Lei Hou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane, 4072, Australia
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11
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Zhang G, Lin W, Huang F, Sessler J, Khashab NM. Industrial Separation Challenges: How Does Supramolecular Chemistry Help? J Am Chem Soc 2023; 145:19143-19163. [PMID: 37624708 DOI: 10.1021/jacs.3c06175] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
The chemical industry and the chemical processes underscoring it are under intense scrutiny as the demands for the transition to more sustainable and environmentally friendly practices are increasing. Traditional industrial separation systems, such as thermally driven distillation for hydrocarbon purification, are energy intensive. The development of more energy efficient separation technologies is thus emerging as a critical need, as is the creation of new materials that may permit a transition away from classic distillation-based separations. In this Perspective, we focus on porous organic cages and macrocycles that can adsorb guest molecules selectively through various host-guest interactions and permit molecular sieving behavior at the molecular level. Specifically, we summarize the recent advances where receptor-based adsorbent materials have been shown to be effective for industrially relevant hydrocarbon separations, highlighting the underlying host-guest interactions that impart selectivity and permit the observed separations. This approach to sustainable separations is currently in its infancy. Nevertheless, several receptor-based adsorbent materials with extrinsic/intrinsic voids or special functional groups have been reported in recent years that can selectively capture various targeted guest molecules. We believe that the understanding of the interactions that drive selectivity at a molecular level accruing from these initial systems will permit an ever-more-effective "bottom-up" design of tailored molecular sieves that, in due course, will allow adsorbent material-based approaches to separations to transition from the laboratory into an industrial setting.
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Affiliation(s)
- Gengwu Zhang
- Smart Hybrid Materials Laboratory (SHMs), Chemistry Program, Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Weibin Lin
- Smart Hybrid Materials Laboratory (SHMs), Chemistry Program, Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Feihe Huang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, 311215, P. R. China
| | - Jonathan Sessler
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Niveen M Khashab
- Smart Hybrid Materials Laboratory (SHMs), Chemistry Program, Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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12
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Cho KH, Yoon JW, Lee JH, Kim JC, Jo D, Park J, Lee SK, Kwak SK, Lee UH. Design of Pore Properties of an Al-Based Metal-Organic Framework for the Separation of an Ethane/Ethylene Gas Mixture via Ethane-Selective Adsorption. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37310803 DOI: 10.1021/acsami.3c03971] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A series of Al-based isomorphs (CAU-10H, MIL-160, KMF-1, and CAU-10pydc) were synthesized using isophthalic acid (ipa), 2,5-furandicarboxylic acid (fdc), 2,5-pyrrole dicarboxylic acid (pyrdc), and 3,5-pyridinedicarboxylic acid (pydc), respectively. These isomorphs were systematically investigated to identify the best adsorbent for effectively separating C2H6/C2H4. All CAU-10 isomorphs exhibited preferential adsorption of C2H6 over that of C2H4 in mixture. CAU-10pydc exhibited the best C2H6/C2H4 selectivity (1.68) and the highest C2H6 uptake (3.97 mmol g-1) at 298 K and 1 bar. In the breakthrough experiment using CAU-10pydc, 1/1 (v/v) and 1/15 (v/v) C2H6/C2H4 gas mixtures were successfully separated into high-purity C2H4 (>99.95%), with remarkable productivities of 14.0 LSTP kg-1 and 32.0 LSTP kg-1, respectively, at 298 K. Molecular simulations revealed that the exceptional separation performance of CAU-10pydc originated from the increased porosity and reduced electron density of the pyridine ring of pydc, leading to a relatively larger decrease in π-π interactions with C2H4 than in the C-H···π interactions with C2H6. This study demonstrates that the pore size and geometry of the CAU-10 platform are modulated by the inclusion of heteroatom-containing benzene dicarboxylate or heterocyclic rings of dicarboxylate-based organic linkers, thereby fine-tuning the C2H6/C2H4 separation ability. CAU-10pydc was determined to be an optimum adsorbent for this challenging separation.
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Affiliation(s)
- Kyung Ho Cho
- Research Group for Nanocatalyst (RGN) and Chemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT), Gajeong-Ro 141, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Ji Woong Yoon
- Research Group for Nanocatalyst (RGN) and Chemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT), Gajeong-Ro 141, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Jeong Hyeon Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 44919, Republic of Korea
| | - Jin Chul Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, Ulsan 44919, Republic of Korea
| | - Donghui Jo
- Research Group for Nanocatalyst (RGN) and Chemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT), Gajeong-Ro 141, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Jaedeuk Park
- Research Group for Nanocatalyst (RGN) and Chemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT), Gajeong-Ro 141, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Su-Kyung Lee
- Research Group for Nanocatalyst (RGN) and Chemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT), Gajeong-Ro 141, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Sang Kyu Kwak
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - U-Hwang Lee
- Research Group for Nanocatalyst (RGN) and Chemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT), Gajeong-Ro 141, Yuseong-gu, Daejeon 34114, Republic of Korea
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13
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Yang SQ, Krishna R, Chen H, Li L, Zhou L, An YF, Zhang FY, Zhang Q, Zhang YH, Li W, Hu TL, Bu XH. Immobilization of the Polar Group into an Ultramicroporous Metal-Organic Framework Enabling Benchmark Inverse Selective CO 2/C 2H 2 Separation with Record C 2H 2 Production. J Am Chem Soc 2023. [PMID: 37311069 DOI: 10.1021/jacs.3c03265] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
One-step harvest of high-purity light hydrocarbons without the desorption process represents an advanced and highly efficient strategy for the purification of target substances. The separation and purification of acetylene (C2H2) from carbon dioxide (CO2) by CO2-selective adsorbents are urgently demanded yet are very challenging owing to their similar physicochemical properties. Here, we employ the pore chemistry strategy to adjust the pore environment by immobilizing polar groups into an ultramicroporous metal-organic framework (MOF), achieving one-step manufacture of high-purity C2H2 from CO2/C2H2 mixtures. Embedding methyl groups into prototype stable MOF (Zn-ox-trz) not only changes the pore environment but also improves the discrimination of guest molecules. The methyl-functionalized Zn-ox-mtz thus exhibits the benchmark reverse CO2/C2H2 uptake ratio of 12.6 (123.32/9.79 cm3 cm-3) and an exceptionally high equimolar CO2/C2H2 selectivity of 1064.9 at ambient conditions. Molecular simulations reveal that the synergetic effect of pore confinement and surfaces decorated with methyl groups provides high recognition of CO2 molecules through multiple van der Waals interactions. The column breakthrough experiments suggest that Zn-ox-mtz dramatically achieved the one-step purification capacity of C2H2 from the CO2/C2H2 mixture with a record C2H2 productivity of 2091 mmol kg-1, surpassing all of the CO2-selective adsorbents reported so far. In addition, Zn-ox-mtz exhibits excellent chemical stability under different pH values of aqueous solutions (pH = 1-12). Moreover, the highly stable framework and excellent inverse selective CO2/C2H2 separation performance showcase its promising application as a C2H2 splitter for industrial manufacture. This work paves the way to developing reverse-selective adsorbents for the challenging gas separation process.
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Affiliation(s)
- Shan-Qing Yang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Rajamani Krishna
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Hongwei Chen
- College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Libo Li
- College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Lei Zhou
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Yi-Feng An
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Fei-Yang Zhang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Qiang Zhang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Ying-Hui Zhang
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Wei Li
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Tong-Liang Hu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Xian-He Bu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
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14
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Gao MY, Bezrukov AA, Song BQ, He M, Nikkhah SJ, Wang SQ, Kumar N, Darwish S, Sensharma D, Deng C, Li J, Liu L, Krishna R, Vandichel M, Yang S, Zaworotko MJ. Highly Productive C 3H 4/C 3H 6 Trace Separation by a Packing Polymorph of a Layered Hybrid Ultramicroporous Material. J Am Chem Soc 2023; 145:11837-11845. [PMID: 37204941 DOI: 10.1021/jacs.3c03505] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Ultramicroporous materials can be highly effective at trace gas separations when they offer a high density of selective binding sites. Herein, we report that sql-NbOFFIVE-bpe-Cu, a new variant of a previously reported ultramicroporous square lattice, sql, topology material, sql-SIFSIX-bpe-Zn, can exist in two polymorphs. These polymorphs, sql-NbOFFIVE-bpe-Cu-AA (AA) and sql-NbOFFIVE-bpe-Cu-AB (AB), exhibit AAAA and ABAB packing of the sql layers, respectively. Whereas NbOFFIVE-bpe-Cu-AA (AA) is isostructural with sql-SIFSIX-bpe-Zn, each exhibiting intrinsic 1D channels, sql-NbOFFIVE-bpe-Cu-AB (AB) has two types of channels, the intrinsic channels and extrinsic channels between the sql networks. Gas and temperature induced transformations of the two polymorphs of sql-NbOFFIVE-bpe-Cu were investigated by pure gas sorption, single-crystal X-ray diffraction (SCXRD), variable temperature powder X-ray diffraction (VT-PXRD), and synchrotron PXRD. We observed that the extrinsic pore structure of AB resulted in properties with potential for selective C3H4/C3H6 separation. Subsequent dynamic gas breakthrough measurements revealed exceptional experimental C3H4/C3H6 selectivity (270) and a new benchmark for productivity (118 mmol g-1) of polymer grade C3H6 (purity >99.99%) from a 1:99 C3H4/C3H6 mixture. Structural analysis, gas sorption studies, and gas adsorption kinetics enabled us to determine that a binding "sweet spot" for C3H4 in the extrinsic pores is behind the benchmark separation performance. Density-functional theory (DFT) calculations and Canonical Monte Carlo (CMC) simulations provided further insight into the binding sites of C3H4 and C3H6 molecules within these two hybrid ultramicroporous materials, HUMs. These results highlight, to our knowledge for the first time, how pore engineering through the study of packing polymorphism in layered materials can dramatically change the separation performance of a physisorbent.
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Affiliation(s)
- Mei-Yan Gao
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Andrey A Bezrukov
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Bai-Qiao Song
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Meng He
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Sousa Javan Nikkhah
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Shi-Qiang Wang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way 138634, Singapore
| | - Naveen Kumar
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Shaza Darwish
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Debobroto Sensharma
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Chenghua Deng
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Jiangnan Li
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Lunjie Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands
| | - Matthias Vandichel
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Sihai Yang
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Michael J Zaworotko
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
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15
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Liu X, Zhang P, Xiong H, Zhang Y, Wu K, Liu J, Krishna R, Chen J, Chen S, Zeng Z, Deng S, Wang J. Engineering Pore Environments of Sulfate-Pillared Metal-Organic Framework for Efficient C 2 H 2 /CO 2 Separation with Record Selectivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210415. [PMID: 36856017 DOI: 10.1002/adma.202210415] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/14/2023] [Indexed: 05/19/2023]
Abstract
Engineering pore environments exhibit great potential in improving gas adsorption and separation performances but require specific means for acetylene/carbon dioxide (C2 H2 /CO2 ) separation due to their identical dynamic diameters and similar properties. Herein, a novel sulfate-pillared MOF adsorbent (SOFOUR-TEPE-Zn) using 1,1,2,2-tetra(pyridin-4-yl) ethene (TEPE) ligand with dense electronegative pore surfaces is reported. Compared to the prototype SOFOUR-1-Zn, SOFOUR-TEPE-Zn exhibits a higher C2 H2 uptake (89.1 cm3 g-1 ), meanwhile the CO2 uptake reduces to 14.1 cm3 g-1 , only 17.4% of that on SOFOUR-1-Zn (81.0 cm3 g-1 ). The high affinity toward C2 H2 than CO2 is demonstrated by the benchmark C2 H2 /CO2 selectivity (16 833). Furthermore, dynamic breakthrough experiments confirm its application feasibility and good cyclability at various flow rates. During the desorption cycle, 60.1 cm3 g-1 C2 H2 of 99.5% purity or 33.2 cm3 g-1 C2 H2 of 99.99% purity can be recovered by stepped purging and mild heating. The simulated pressure swing adsorption processes reveal that 75.5 cm3 g-1 C2 H2 of 99.5+% purity with a high gas recovery of 99.82% can be produced in a counter-current blowdown process. Modeling studies disclose four favorable adsorption sites and dense packing for C2 H2 .
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Affiliation(s)
- Xing Liu
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Peixin Zhang
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Hanting Xiong
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Yan Zhang
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Ke Wu
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Junhui Liu
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, Netherlands
| | - Jingwen Chen
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Shixia Chen
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Zheling Zeng
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
| | - Shuguang Deng
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287, USA
| | - Jun Wang
- Chemistry and Chemical Engineering School, Nanchang University, Nanchang, Jiangxi, 330031, China
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16
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Jiang Y, Wang L, Yan T, Hu J, Sun W, Krishna R, Wang D, Gu Z, Liu D, Cui X, Xing H, Zhang Y. Insights into the thermodynamic-kinetic synergistic separation of propyne/propylene in anion pillared cage MOFs with entropy-enthalpy balanced adsorption sites. Chem Sci 2023; 14:298-309. [PMID: 36687342 PMCID: PMC9811657 DOI: 10.1039/d2sc05742e] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Propyne/propylene (C3H4/C3H6) separation is an important industrial process yet challenged by the trade-off of selectivity and capacity due to the molecular similarity. Herein, record C3H4/C3H6 separation performance is achieved by fine tuning the pore structure in anion pillared MOFs. SIFSIX-Cu-TPA (ZNU-2-Si) displays a benchmark C3H4 capacity (106/188 cm3 g-1 at 0.01/1 bar and 298 K), excellent C3H4/C3H6 IAST selectivity (14.6-19.3) and kinetic selectivity, and record high C3H4/C3H6 (10/90) separation potential (36.2 mol kg-1). The practical C3H4/C3H6 separation performance is fully demonstrated by breakthroughs under various conditions. 37.8 and 52.9 mol kg-1 of polymer grade C3H6 can be produced from 10/90 and 1/99 C3H4/C3H6 mixtures. 4.7 mol kg-1 of >99% purity C3H4 can be recovered by a stepped desorption process. Based on the in situ single crystal analysis and DFT calculation, an unprecedented entropy-enthalpy balanced adsorption pathway is discovered. MD simulation further confirmed the thermodynamic-kinetic synergistic separation of C3H4/C3H6 in ZNU-2-Si.
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Affiliation(s)
- Yunjia Jiang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal UniversityJinhua 321004China
| | - Lingyao Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal UniversityJinhua 321004China
| | - Tongan Yan
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical TechnologyBeijing 100029China
| | - Jianbo Hu
- Department of Chemistry, Zhejiang University38 Zheda Road310027 HangzhouP. R. China
| | - Wanqi Sun
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal UniversityJinhua 321004China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of AmsterdamScience Park 9041098 XH AmsterdamNetherlands
| | - Dongmei Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal UniversityJinhua 321004China
| | - Zonglin Gu
- College of Physical Science and Technology, Yangzhou UniversityJiangsu225009China
| | - Dahuan Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical TechnologyBeijing 100029China
| | - Xili Cui
- Department of Chemistry, Zhejiang University38 Zheda Road310027 HangzhouP. R. China
| | - Huabin Xing
- Department of Chemistry, Zhejiang University38 Zheda Road310027 HangzhouP. R. China
| | - Yuanbin Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal UniversityJinhua 321004China
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17
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Li YZ, Krishna R, Xu F, Zhang WF, Sui Y, Hou L, Wang YY, Zhu Z. A novel C2H2-selective microporous Cd-MOF for C2H2/C2H4 and C2H2/CO2 separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Wang G, Krishna R, Li Y, Shi W, Hou L, Wang Y, Zhu Z. Boosting Ethane/Ethylene Separation by MOFs through the Amino‐Functionalization of Pores. Angew Chem Int Ed Engl 2022; 61:e202213015. [DOI: 10.1002/anie.202213015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Gang‐Ding Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 P. R. China
| | - Rajamani Krishna
- Van ‘t Hoff Institute for Molecular Sciences University of Amsterdam 1098 XH Amsterdam The Netherlands
| | - Yong‐Zhi Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 P. R. China
| | - Wen‐Juan Shi
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 P. R. China
| | - Lei Hou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 P. R. China
| | - Yao‐Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 P. R. China
| | - Zhonghua Zhu
- School of Chemical Engineering The University of Queensland Brisbane 4072 Australia
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19
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Laha S, Dwarkanath N, Sharma A, Rambabu D, Balasubramanian S, Maji TK. Tailoring a robust Al-MOF for trapping C 2H 6 and C 2H 2 towards efficient C 2H 4 purification from quaternary mixtures. Chem Sci 2022; 13:7172-7180. [PMID: 35799813 PMCID: PMC9214891 DOI: 10.1039/d2sc01180h] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/15/2022] [Indexed: 01/23/2023] Open
Abstract
Light hydrocarbon separation is considered one of the most industrially challenging and desired chemical separation processes and is highly essential in polymer and chemical industries. Among them, separating ethylene (C2H4) from C2 hydrocarbon mixtures such as ethane (C2H6), acetylene (C2H2), and other natural gas elements (CO2, CH4) is of paramount importance and poses significant difficulty. We demonstrate such separations using an Al-MOF synthesised earlier as a non-porous material, but herein endowed with hierarchical porosity created under microwave conditions in an equimolar water/ethanol solution. The material possessing a large surface area (793 m2 g−1) exhibits an excellent uptake capacity for major industrial hydrocarbons in the order of C2H2 > C2H6 > CO2 > C2H4 > CH4 under ambient conditions. It shows an outstanding dynamic breakthrough separation of ethylene (C2H4) not only for a binary mixture (C2H6/C2H4) but also for a quaternary combination (C2H4/C2H6/C2H2/CO2 and C2H4/C2H6/C2H2/CH4) of varying concentrations. The detailed separation/purification mechanism was unveiled by gas adsorption isotherms, mixed-gas adsorption calculations, selectivity estimations, advanced computer simulations such as density functional theory (DFT), grand canonical Monte Carlo (GCMC) and ab initio molecular dynamics (AIMD), and stepwise multicomponent dynamic breakthrough experiments. Industrially important C2H4 purification from multi-component hydrocarbon mixtures.![]()
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Affiliation(s)
- Subhajit Laha
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Post Bangalore 560064 India https://www.jncasr.ac.in/tmaji
| | - Nimish Dwarkanath
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Post Bangalore 560064 India https://www.jncasr.ac.in/tmaji
| | - Abhishek Sharma
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Post Bangalore 560064 India https://www.jncasr.ac.in/tmaji
| | - Darsi Rambabu
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Post Bangalore 560064 India https://www.jncasr.ac.in/tmaji
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Post Bangalore 560064 India https://www.jncasr.ac.in/tmaji
| | - Tapas Kumar Maji
- Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur Post Bangalore 560064 India https://www.jncasr.ac.in/tmaji
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20
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Jiang Y, Hu J, Wang L, Sun W, Xu N, Krishna R, Duttwyler S, Cui X, Xing H, Zhang Y. Comprehensive Pore Tuning in an Ultrastable Fluorinated Anion Cross-Linked Cage-Like MOF for Simultaneous Benchmark Propyne Recovery and Propylene Purification. Angew Chem Int Ed Engl 2022; 61:e202200947. [PMID: 35199908 DOI: 10.1002/anie.202200947] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Indexed: 01/03/2023]
Abstract
Propyne/propylene (C3 H4 /C3 H6 ) separation is an important but challenging industrial process to produce polymer-grade C3 H6 and recover high-purity C3 H4 . Herein, we report an ultrastable TiF6 2- anion cross-linked metal-organic framework (ZNU-2) with precisely controlled pore size, shape and functionality for benchmark C3 H4 storage (3.9/7.7 mmol g-1 at 0.01/1.0 bar and 298 K) and record high C3 H4 /C3 H6 (10/90) separation potential (31.0 mol kg-1 ). The remarkable C3 H4 /C3 H6 (1/99, 10/90, 50/50) separation performance was fully demonstrated by simulated and experimental breakthroughs under various conditions with excellent recyclability and high productivity (42 mol kg-1 ) of polymer-grade C3 H6 from a 1/99 C3 H4 /C3 H6 mixture. A modelling study revealed that the symmetrical spatial distribution of six TiF6 2- on the icosahedral cage surface provides two distinct binding sites for C3 H4 adsorption: one serves as a tailored single C3 H4 molecule trap and the other boosts C3 H4 accommodation by cooperative host-guest and guest-guest interactions.
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Affiliation(s)
- Yunjia Jiang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, P.R. China
| | - Jianbo Hu
- Key laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P.R. China
| | - Lingyao Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, P.R. China
| | - Wanqi Sun
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, P.R. China
| | - Nuo Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, P.R. China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098, Amsterdam, The Netherlands
| | - Simon Duttwyler
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, P.R. China
| | - Xili Cui
- Key laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P.R. China
| | - Huabin Xing
- Key laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P.R. China
| | - Yuanbin Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, P.R. China
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21
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Krishna R, van Baten JM. Highlighting the Anti-Synergy between Adsorption and Diffusion in Cation-Exchanged Faujasite Zeolites. ACS OMEGA 2022; 7:13050-13056. [PMID: 35474830 PMCID: PMC9026072 DOI: 10.1021/acsomega.2c00427] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Using configurational-bias Monte Carlo simulations of adsorption equilibrium and molecular dynamics simulations of guest diffusivities of CO2, CH4, N2, and O2 in FAU zeolites with varying amounts of extra-framework cations (Na+ or Li+), we demonstrate that adsorption and diffusion do not, in general, proceed hand-in-hand. Stronger adsorption often implies reduced mobility. The anti-synergy between adsorption and diffusion has consequences for the design and development of pressure-swing adsorption and membrane separation technologies for CO2 capture and N2/O2 separations.
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22
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Jiang Y, Hu J, Wang L, Sun W, Xu N, Krishna R, Duttwyler S, Cui X, Xing H, Zhang Y. Comprehensive Pore Tuning in an Ultrastable Fluorinated Anion Cross‐Linked Cage‐Like MOF for Simultaneous Benchmark Propyne Recovery and Propylene Purification. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yunjia Jiang
- Zhejiang Normal University College of Chemistry and Life Science CHINA
| | - Jianbo Hu
- Zhejiang University College of Chemical and Biological Engineering CHINA
| | - Lingyao Wang
- Zhejiang Normal University College of Chemistry and Life Science CHINA
| | - Wanqi Sun
- Zhejiang Normal University College of Chemistry and Life Science CHINA
| | - Nuo Xu
- Zhejiang Normal University College of Chemistry and Life Science CHINA
| | - Rajamani Krishna
- University of Amsterdam: Universiteit van Amsterdam Van't Hoff Institute for Molecular Sciences NETHERLANDS
| | | | - Xili Cui
- Zhejiang University College of Chemical and Biological Engineering CHINA
| | - Huabin Xing
- Zhejiang University College of Chemical and Biological Engineering CHINA
| | - Yuanbin Zhang
- Zhejiang Normal University College of Chemistry and Life Sciences Yingbin Road 688 321004 Jinhua CHINA
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23
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Lu C, Chen Y, Wang Y, Du Y, Yang J, Li L, Li J. Energy efficient ethylene purification in a commercially viable ethane-selective MOF. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120126] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Ye Y, Xian S, Cui H, Tan K, Gong L, Liang B, Pham T, Pandey H, Krishna R, Lan PC, Forrest KA, Space B, Thonhauser T, Li J, Ma S. Metal-Organic Framework Based Hydrogen-Bonding Nanotrap for Efficient Acetylene Storage and Separation. J Am Chem Soc 2021; 144:1681-1689. [PMID: 34965123 DOI: 10.1021/jacs.1c10620] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The removal of carbon dioxide (CO2) from acetylene (C2H2) is a critical industrial process for manufacturing high-purity C2H2. However, it remains challenging to address the tradeoff between adsorption capacity and selectivity, on account of their similar physical properties and molecular sizes. To overcome this difficulty, here we report a novel strategy involving the regulation of a hydrogen-bonding nanotrap on the pore surface to promote the separation of C2H2/CO2 mixtures in three isostructural metal-organic frameworks (MOFs, named MIL-160, CAU-10H, and CAU-23, respectively). Among them, MIL-160, which has abundant hydrogen-bonding acceptors as nanotraps, can selectively capture acetylene molecules and demonstrates an ultrahigh C2H2 storage capacity (191 cm3 g-1, or 213 cm3 cm-3) but much less CO2 uptake (90 cm3 g-1) under ambient conditions. The C2H2 adsorption amount of MIL-160 is remarkably higher than those for the other two isostructural MOFs (86 and 119 cm3 g-1 for CAU-10H and CAU-23, respectively) under the same conditions. More importantly, both simulation and experimental breakthrough results show that MIL-160 sets a new benchmark for equimolar C2H2/CO2 separation in terms of the separation potential (Δqbreak = 5.02 mol/kg) and C2H2 productivity (6.8 mol/kg). In addition, in situ FT-IR experiments and computational modeling further reveal that the unique host-guest multiple hydrogen-bonding interaction between the nanotrap and C2H2 is the key factor for achieving the extraordinary acetylene storage capacity and superior C2H2/CO2 selectivity. This work provides a novel and powerful approach to address the tradeoff of this extremely challenging gas separation.
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Affiliation(s)
- Yingxiang Ye
- Department of Chemistry, University of North Texas, Denton, Texas 76201, United States
| | - Shikai Xian
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States.,Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, People's Republic of China
| | - Hui Cui
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249-0698, United States
| | - Kui Tan
- Department of Materials Science & Engineering, University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Lingshan Gong
- Department of Chemistry, University of North Texas, Denton, Texas 76201, United States
| | - Bin Liang
- Department of Chemistry, University of North Texas, Denton, Texas 76201, United States
| | - Tony Pham
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Haardik Pandey
- Department of Physics and Center for Functional Materials, Wake Forest University, Winston-Salem, North Carolina 27109, United States
| | - Rajamani Krishna
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Pui Ching Lan
- Department of Chemistry, University of North Texas, Denton, Texas 76201, United States
| | - Katherine A Forrest
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Brian Space
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Timo Thonhauser
- Department of Physics and Center for Functional Materials, Wake Forest University, Winston-Salem, North Carolina 27109, United States
| | - Jing Li
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Shengqian Ma
- Department of Chemistry, University of North Texas, Denton, Texas 76201, United States
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25
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Zhou M, Wang J, Garcia J, Liu Y, Wu J. Modeling Multicomponent Gas Adsorption in Nanoporous Materials with Two Versions of Nonlocal Classical Density Functional Theory. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Musen Zhou
- Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
| | - Jingqi Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jose Garcia
- Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
| | - Yu Liu
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519000, Guangdong, China
| | - Jianzhong Wu
- Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
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26
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Wang L, Sun W, Zhang Y, Xu N, Krishna R, Hu J, Jiang Y, He Y, Xing H. Interpenetration Symmetry Control Within Ultramicroporous Robust Boron Cluster Hybrid MOFs for Benchmark Purification of Acetylene from Carbon Dioxide. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107963] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lingyao Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life Sciences Zhejiang Normal University Jinhua 321004 P. R. China
| | - Wanqi Sun
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life Sciences Zhejiang Normal University Jinhua 321004 P. R. China
| | - Yuanbin Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life Sciences Zhejiang Normal University Jinhua 321004 P. R. China
| | - Nuo Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life Sciences Zhejiang Normal University Jinhua 321004 P. R. China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam Netherlands
| | - Jianbo Hu
- China Key laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 P. R. China
| | - Yunjia Jiang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life Sciences Zhejiang Normal University Jinhua 321004 P. R. China
| | - Yabing He
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life Sciences Zhejiang Normal University Jinhua 321004 P. R. China
| | - Huabin Xing
- China Key laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 P. R. China
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27
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Wang L, Sun W, Zhang Y, Xu N, Krishna R, Hu J, Jiang Y, He Y, Xing H. Interpenetration symmetry control within ultramicroporous robust boron cluster hybrid MOFs for benchmark purification of acetylene from carbon dioxide. Angew Chem Int Ed Engl 2021; 60:22865-22870. [PMID: 34383352 DOI: 10.1002/anie.202107963] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/20/2021] [Indexed: 11/09/2022]
Abstract
The separation of C2H2/CO2 is an important process in industry but challenged by the trade-off of capacity and selectivity owning to their similar physical properties and identical kinetic molecular size. Herein, we report the first example of symmetrically interpenetrated dodecaborate pillared MOF, ZNU-1, for benchmark selective separation of C2H2 from CO2 with a high C2H2 capacity of 76.3 cm3 g-1 and record C2H2/CO2 selectivity of 56.6 (298 K, 1 bar) among all the robust porous materials without open metal sites. Single crystal structure analysis and modelling study indicated that the interpenetration shifting from asymmetric to symmetric mode provided optimal pore chemistry with ideal synergistic "2+2" dihydrogen bonding sites for tight C2H2 trapping. The exceptional separation performance was further evidenced by simulated and experimental breakthroughs with excellent recyclability and high productivity (2.4 mol/kg) of 99.5% purity C2H2 during stepped desorption process.
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Affiliation(s)
- Lingyao Wang
- Zhejiang Normal University, College of Chemistry and Life Science, CHINA
| | - Wanqi Sun
- Zhejiang Normal University, College of Chemistry and Life Science, CHINA
| | - Yuanbin Zhang
- Zhejiang Normal University, College of Chemistry and Life Science, CHINA
| | - Nuo Xu
- Zhejiang Normal University, College of Chemistry and Life Science, CHINA
| | - Rajamani Krishna
- University of Amsterdam: Universiteit van Amsterdam, Van't Hoff Institute for Molecular Sciences, NETHERLANDS
| | - Jianbo Hu
- Zhejiang University, College of Chemical & Biological Engineering, CHINA
| | - Yunjia Jiang
- Zhejiang Normal University, College of Chemistry and Life Science, CHINA
| | - Yabing He
- Zhejiang Normal University, College of Chemistry and Life Science, CHINA
| | - Huabin Xing
- Zhejiang University, College of Chemical and Biological Engineering, 38 Zheda Road, 310027, Hangzhou, CHINA
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28
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Anderson R, Gómez-Gualdrón DA. Deep learning combined with IAST to screen thermodynamically feasible MOFs for adsorption-based separation of multiple binary mixtures. J Chem Phys 2021; 154:234102. [PMID: 34241255 DOI: 10.1063/5.0048736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The structures of metal-organic frameworks (MOFs) can be tuned to reproducibly create adsorption properties that enable the use of these materials in fixed-adsorption beds for non-thermal separations. However, with millions of possible MOF structures, the challenge is to find the MOF with the best adsorption properties to separate a given mixture. Thus, computational, rather than experimental, screening is necessary to identify promising MOF structures that merit further examination, a process traditionally done using molecular simulation. However, even molecular simulation can become intractable when screening an expansive MOF database for their separation properties at more than a few composition, temperature, and pressure combinations. Here, we illustrate progress toward an alternative computational framework that can efficiently identify the highest-performing MOFs for separating various gas mixtures at a variety of conditions and at a fraction of the computational cost of molecular simulation. This framework uses a "multipurpose" multilayer perceptron (MLP) model that can predict single component adsorption of various small adsorbates, which, upon coupling with ideal adsorbed solution theory (IAST), can predict binary adsorption for mixtures such as Xe/Kr, CH4/CH6, N2/CH4, and Ar/Kr at multiple compositions and pressures. For this MLP+IAST framework to work with sufficient accuracy, we found it critical for the MLP to make accurate predictions at low pressures (0.01-0.1 bar). After training a model with this capability, we found that MOFs in the 95th and 90th percentiles of separation performance determined from MLP+IAST calculations were 65% and 87%, respectively, the same as MOFs in the simulation-predicted 95th percentile across several mixtures at diverse conditions (on average). After validating our MLP+IAST framework, we used a clustering algorithm to identify "privileged" MOFs that are high performing for multiple separations at multiple conditions. As an example, we focused on MOFs that were high performing for the industrially relevant separations 80/20 Xe/Kr at 1 bar and 80/20 N2/CH4 at 5 bars. Finally, we used the MOF free energies (calculated on our entire database) to identify privileged MOFs that were also likely synthetically accessible, at least from a thermodynamic perspective.
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Affiliation(s)
- Ryther Anderson
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, USA
| | - Diego A Gómez-Gualdrón
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, USA
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29
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Krishna R, van Baten JM. How Reliable Is the Ideal Adsorbed Solution Theory for the Estimation of Mixture Separation Selectivities in Microporous Crystalline Adsorbents? ACS OMEGA 2021; 6:15499-15513. [PMID: 34151128 PMCID: PMC8210411 DOI: 10.1021/acsomega.1c02136] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 05/25/2021] [Indexed: 06/13/2023]
Abstract
Microporous crystalline adsorbents such as zeolites and metal-organic frameworks (MOFs) have potential use in a wide variety of separation applications. The adsorption selectivity S ads is a key metric that quantifies the efficacy of any microporous adsorbent in mixture separations. The Ideal Adsorbed Solution Theory (IAST) is commonly used for estimating the value of S ads, with unary isotherms of the constituent guests as data inputs. There are two basic tenets underlying the development of the IAST. The first tenet mandates a homogeneous distribution of adsorbates within the pore landscape. The second tenet requires the surface area occupied by a guest molecule in the mixture to be the same as that for the corresponding pure component. Configurational-bias Monte Carlo (CBMC) simulations are employed in this article to highlight several scenarios in which the IAST fails to provide a quantitatively correct description of mixture adsorption equilibrium due to a failure to conform to either of the two tenets underpinning the IAST. For CO2 capture with cation-exchanged zeolites and MOFs with open metal sites, there is congregation of CO2 around the cations and unsaturated metal atoms, resulting in failure of the IAST due to an inhomogeneous distribution of adsorbates in the pore space. Thermodynamic non-idealities also arise due to the preferential location of CO2 molecules at the window regions of 8-ring zeolites such as DDR and CHA or within pockets of MOR and AFX zeolites. Thermodynamic non-idealities are evidenced for water/alcohol mixtures due to molecular clustering engendered by hydrogen bonding. It is also demonstrated that thermodynamic non-idealities can be strong enough to cause selectivity reversals, which are not anticipated by the IAST.
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30
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Qiao X, Liu Y, Yang Y, Wang H, Ma J, Wang D, Gao N, Li L, Liu W, Wang H. Synthesis optimization of metal-organic frameworks MIL-125 and its adsorption separation on C8 aromatics measured by pulse test and simulation calculation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.121956] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Qazvini OT, Telfer SG. MUF-16: A Robust Metal-Organic Framework for Pre- and Post-Combustion Carbon Dioxide Capture. ACS APPLIED MATERIALS & INTERFACES 2021; 13:12141-12148. [PMID: 33661605 DOI: 10.1021/acsami.1c01156] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
One of the most critical environmental issues of our age is the escalating release of CO2 into the atmosphere. Separation technologies with low energy footprints may be an effective way to capture CO2 and prevent its accumulation. Metal-organic frameworks (MOFs) can meet separation challenges due to their tailored structures and tunable pore surfaces. However, obstacles to their deployment can include the energy consumed by regeneration, a lack of long-term structural stability, and their production on large scales. Herein, we report on MUF-16 ([Co(Haip)2], H2aip = 5-aminoisophthalic acid), a hydrogen-bonded water-stable microporous material that combines high CO2 adsorption with a low affinity for other gases. MUF-16 is built up from inexpensive starting reagents in a scalable process. It can be easily regenerated at room temperature by purging with inert gas, and it maintains its performance over multiple adsorption/desorption cycles. MUF-16 features one-dimensional channels that trap CO2 guest molecules by a raft of attractive electrostatic interactions and size complementarity. It rejects H2 and N2 molecules around room temperature. This was verified by simulated and experimental breakthrough separation measurements on CO2/N2 and CO2/H2 mixtures. MUF-16 can be pelletized by coating with polymeric poly(vinylidene difluoride) (PVDF) to render it compatible with large-scale applications.
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Affiliation(s)
- Omid T Qazvini
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Fundamental Sciences, Massey University, Palmerston North 4410, New Zealand
- Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Shane G Telfer
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Fundamental Sciences, Massey University, Palmerston North 4410, New Zealand
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32
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Qazvini OT, Babarao R, Telfer SG. Selective capture of carbon dioxide from hydrocarbons using a metal-organic framework. Nat Commun 2021; 12:197. [PMID: 33420024 PMCID: PMC7794324 DOI: 10.1038/s41467-020-20489-2] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 12/03/2020] [Indexed: 11/08/2022] Open
Abstract
Efficient and sustainable methods for carbon dioxide capture are highly sought after. Mature technologies involve chemical reactions that absorb CO2, but they have many drawbacks. Energy-efficient alternatives may be realised by porous physisorbents with void spaces that are complementary in size and electrostatic potential to molecular CO2. Here, we present a robust, recyclable and inexpensive adsorbent termed MUF-16. This metal-organic framework captures CO2 with a high affinity in its one-dimensional channels, as determined by adsorption isotherms, X-ray crystallography and density-functional theory calculations. Its low affinity for other competing gases delivers high selectivity for the adsorption of CO2 over methane, acetylene, ethylene, ethane, propylene and propane. For equimolar mixtures of CO2/CH4 and CO2/C2H2, the selectivity is 6690 and 510, respectively. Breakthrough gas separations under dynamic conditions benefit from short time lags in the elution of the weakly-adsorbed component to deliver high-purity hydrocarbon products, including pure methane and acetylene.
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Affiliation(s)
- Omid T Qazvini
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
- Department of Chemical Engineering and Analytical Science, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Ravichandar Babarao
- School of Science, RMIT University, Melbourne, VIC, 3001, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, VIC, 3169, Australia
| | - Shane G Telfer
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
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Krishna R, van Baten JM. Water/Alcohol Mixture Adsorption in Hydrophobic Materials: Enhanced Water Ingress Caused by Hydrogen Bonding. ACS OMEGA 2020; 5:28393-28402. [PMID: 33163823 PMCID: PMC7643331 DOI: 10.1021/acsomega.0c04491] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Microporous crystalline porous materials such as zeolites, metal-organic frameworks, and zeolitic imidazolate frameworks (ZIFs) have potential use for separating water/alcohol mixtures in fixed bed adsorbers and membrane permeation devices. For recovery of alcohols present in dilute aqueous solutions, the adsorbent materials need to be hydrophobic in order to prevent the ingress of water. The primary objective of this article is to investigate the accuracy of ideal adsorbed solution theory (IAST) for prediction of water/alcohol mixture adsorption in hydrophobic adsorbents. For this purpose, configurational bias Monte Carlo (CBMC) simulations are used to determine the component loadings for adsorption equilibrium of water/methanol and water/ethanol mixtures in all-silica zeolites (CHA, DDR, and FAU) and ZIF-8. Due to the occurrence of strong hydrogen bonding between water and alcohol molecules and attendant clustering, IAST fails to provide quantitative estimates of the component loadings and the adsorption selectivity. For a range of operating conditions, the water loading in the adsorbed phase may exceed that of pure water by one to two orders of magnitude. Furthermore, the occurrence of water-alcohol clusters moderates size entropy effects that prevail under pore saturation conditions. For quantitative modeling of the CBMC, simulated data requires the application of real adsorbed solution theory by incorporation of activity coefficients, suitably parameterized by the Margules model for the excess Gibbs free energy of adsorption.
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Krishna R, van Baten JM. Using Molecular Simulations for Elucidation of Thermodynamic Nonidealities in Adsorption of CO 2-Containing Mixtures in NaX Zeolite. ACS OMEGA 2020; 5:20535-20542. [PMID: 32832806 PMCID: PMC7439389 DOI: 10.1021/acsomega.0c02730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Cation-exchanged zeolites are of potential use in pressure swing adsorption (PSA) technologies for CO2 capture applications. Published experimental data for CO2/CH4, CO2/N2, and CO2/C3H8 mixture adsorption in NaX zeolite, also commonly referred to by its trade name 13X, have demonstrated that the ideal adsorbed solution theory (IAST) fails to provide adequately accurate estimates of mixture adsorption equilibrium. In particular, the IAST estimates of CO2/CH4 and CO2/N2 selectivities are significantly higher than those realized in experiments. For CO2/C3H8 mixtures, the IAST fails to anticipate the selectivity reversal phenomena observed in experiments. In this article, configurational-bias Monte Carlo (CBMC) simulations are employed to provide confirmation of the observed thermodynamic nonidealities in adsorption of CO2/CH4, CO2/N2, and CO2/C3H8 mixtures in NaX zeolite. The CBMC simulations provide valuable insights into the root cause of the failure of the IAST, whose applicability mandates a homogeneous distribution of adsorbates within the pore landscape. By sampling 105 equilibrated spatial locations of individual guest molecules within the cages of NaX zeolite, the radial distribution functions (RDFs) of each of the pairs of guest molecules are determined. Examination of the RDFs clearly reveals congregation effects, wherein the CO2 guests occupy positions in close proximity to the Na+ cations. The positioning of the partner molecules (CH4, N2, or C3H8) is further removed from the CO2 guest molecules; consequently, the competition in mixture adsorption faced by the partner molecules is less severe than that anticipated by the IAST. The important message to emerge from this article is the need for quantification of thermodynamic nonideality effects in mixture adsorption.
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