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Nickel-based metal–organic framework for efficient capture of CF4 with a high CF4/N2 selectivity. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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2
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Gao P, Wang Z, Liu L, Cheng S, Li G. Efficient CF4 adsorption on porous carbon derived from polyaniline. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2022.104654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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3
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A nickel-based metal-organic framework for efficient SF6/N2 separation with record SF6 uptake and SF6/N2 selectivity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121340] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Separation of perfluorinated electron specialty gases on microporous carbon adsorbents with record selectivity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121059] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Enhancing Perfluorinated electron specialty gases separation selectivity in ultra-microporous metal organic framework. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120739] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Skarmoutsos I, Koukaras EN, Klontzas E. CF 4 Capture and Separation of CF 4-SF 6 and CF 4-N 2 Fluid Mixtures Using Selected Carbon Nanoporous Materials and Metal-Organic Frameworks: A Computational Study. ACS OMEGA 2022; 7:6691-6699. [PMID: 35252664 PMCID: PMC8892479 DOI: 10.1021/acsomega.1c06167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
The adsorption of pure fluid carbon tetrafluoride and the separation of CF4-SF6 and CF4-N2 fluid mixtures using representative nanoporous materials have been investigated by employing Monte Carlo and molecular dynamics simulation techniques. The selected materials under study were the three-dimensional carbon nanotube networks, pillared graphene using carbon nanotube pillars, and the SIFSIX-2-Cu metal-organic framework. The selection of these materials was based on their previously reported efficiency to separate fluid SF6-N2 mixtures. The pressure dependence of the thermodynamic and kinetic separation selectivity for the CF4-SF6 and CF4-N2 fluid mixtures has therefore been investigated, to provide deeper insights into the molecular scale phenomena taking place in the investigated nanoporous materials. The results obtained have revealed that under near-ambient pressure conditions, the carbon-based nanoporous materials exhibit a higher gravimetric fluid uptake and thermodynamic separation selectivity. The SIFSIX-2-Cu material exhibits a slightly higher kinetic selectivity at ambient and high pressures.
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Affiliation(s)
- Ioannis Skarmoutsos
- Theoretical
and Physical Chemistry Institute, National
Hellenic Research Foundation, Vas. Constantinou 48, GR-116 35 Athens, Greece
- Laboratory
of Quantum and Computational Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Emmanuel N. Koukaras
- Laboratory
of Quantum and Computational Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Emmanuel Klontzas
- Theoretical
and Physical Chemistry Institute, National
Hellenic Research Foundation, Vas. Constantinou 48, GR-116 35 Athens, Greece
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7
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Pan R, Dong W, Guo Y, Tang Y, Shang J, Zhou L, He D. The adsorption mechanism of CF 4 on the surface of activated carbon made from peat and modified by Cu. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:12075-12084. [PMID: 34561796 DOI: 10.1007/s11356-021-16210-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
In order to find a way to deal with CF4 with good removal effect and easy to promote. In this study, peat was used as raw material, and copper-loaded activated carbon (Cu/AC) was successfully prepared through nitric acid oxidation and copper chloride impregnation. Compared with commercial activated carbon and widely used metal organic frameworks (MOFs), it shows a fast adsorption rate and larger adsorption capacity for CF4. The static experiment was used to study the influence of Cu/AC on the adsorption of CF4 in the adsorbent dosage, reaction time, temperature, and initial concentration. SEM, FTIR, XPS, XRF, and BET were used to study the changes of physical and chemical properties before and after the adsorption. It was found that the oxygen-containing group was consumed during this process. Unsaturated sites on Cu can accelerate the adsorption of CF4, and the adsorption process is reversible. For the first time, the kinetic model, adsorption isotherm, and thermodynamic model are used to analyze the adsorption mechanism of CF4 on the Cu/AC surface from different angles. The results show that the adsorption of CF4 on the Cu/AC surface is a process of exothermic entropy reduction. The static adsorption process conforms to the pseudo-first-order, the pseudo-second-order, and the Freundlish adsorption model. Through 5 adsorption and desorption processes, it is found that Cu/AC has excellent recycling and recyclability performance.
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Affiliation(s)
- Rong Pan
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Wei Dong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Yanni Guo
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Yining Tang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Jun Shang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Lei Zhou
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Deliang He
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
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8
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Yuan X, Cho MK, Lee JG, Choi SW, Lee KB. Upcycling of waste polyethylene terephthalate plastic bottles into porous carbon for CF 4 adsorption. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114868. [PMID: 32534237 DOI: 10.1016/j.envpol.2020.114868] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/30/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Thermo-chemical processes for converting plastic wastes into useful materials are considered promising technologies to mitigate the environmental pollution caused by plastic wastes. In this study, polyethylene terephthalate (PET) plastic wastes were used to develop cost-effective and value-added porous carbons; the developed porous carbons were subsequently tested for capturing CF4, a greenhouse gas with a high global-warming potential. The activation temperature was varied from 600 °C to 1000 °C and the mass ratio of KOH/carbon ranged from 1 to 3 in the preparation process and their effects on the textural properties and CF4-capture performance of the PET plastic waste-derived porous carbons were investigated. The CF4-adsorption uptake was dictated by the specific surface area and pore volume of narrow micropores less than 0.9 nm in diameter. PET-K(2)700, which was developed by KOH activation at 700 °C and KOH/carbon mass ratio of 2, showed the highest CF4-adsorption uptake of 2.43 mmol g-1 at 25 °C and 1 atm. Also, the CF4-adsorption data were fitted well with the Langmuir isotherm model and pseudo second-order kinetic model. The PET plastic waste-derived porous carbons exhibited a high CF4 uptake, good CF4/N2 selectivity at relatively low CF4 pressures, easy regeneration, rapid adsorption/desorption kinetics, and excellent recyclability, which are promising for practical CF4-capture applications.
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Affiliation(s)
- Xiangzhou Yuan
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Moon-Kyung Cho
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jong Gyu Lee
- Energy Research Group, Research Institute of Industrial Science and Technology (RIST), 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Seung Wan Choi
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Ki Bong Lee
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
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9
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Wang Y, Gao Z, Wang B, Zhou W, Yu P, Luo Y. Synthesis and Dielectric Properties of Trifluoromethanesulfonyl Fluoride: An Alternative Gas to SF 6. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05633] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yi Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
| | - Zhanyang Gao
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
| | - Baoshan Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
| | - Wenjun Zhou
- School of Electrical Engineering and Automation, Wuhan University, Wuhan, 430072, People’s Republic of China
| | - Ping Yu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
| | - Yunbai Luo
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
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Li Y, Zhang X, Xiao S, Chen Q, Tang J, Chen D, Wang D. Decomposition Properties of C4F7N/N2 Gas Mixture: An Environmentally Friendly Gas to Replace SF6. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00010] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yi Li
- School of Electrical Engineering, Wuhan University, Wuhan 430072, China
| | - Xiaoxing Zhang
- School of Electrical Engineering, Wuhan University, Wuhan 430072, China
| | - Song Xiao
- School of Electrical Engineering, Wuhan University, Wuhan 430072, China
| | - Qi Chen
- School of Electrical Engineering, Wuhan University, Wuhan 430072, China
| | - Ju Tang
- School of Electrical Engineering, Wuhan University, Wuhan 430072, China
| | - Dachang Chen
- School of Electrical Engineering, Wuhan University, Wuhan 430072, China
| | - Dibo Wang
- Electric Power Research Institute, China Southern Power Grid, Guangzhou 510623, China
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11
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Mo ZW, Zhou HL, Zhou DD, Lin RB, Liao PQ, He CT, Zhang WX, Chen XM, Zhang JP. Mesoporous Metal-Organic Frameworks with Exceptionally High Working Capacities for Adsorption Heat Transformation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1704350. [PMID: 29215175 DOI: 10.1002/adma.201704350] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/08/2017] [Indexed: 06/07/2023]
Abstract
Pore size is one of the most important parameters of adsorbents, and mesoporous materials have received intense attention for large guests. Here, a series of mesoporous coordination polymers underlying a new framework prototype for fast expansion of pore size is reported and the profound effect of pore size on adsorption heat transformation is demonstrated. Three isostructural honeycomb-like frameworks are designed and synthesized by combining ditopic linear metal oxalate chains and triangular tris-pyridine ligands. Changing the ligand bridging length from 5.5 to 8.6 and 9.9 Å gives rise to effective pore diameter from 20 to 33 and 37 Å, surface area from 2096 to 2630 and 2749 m2 g-1 , and pore volume from 1.19 to 1.93 and 2.36 cm3 g-1 , respectively. By virtue of the unique and tunable isotherm shape of mesopores, exceptionally large working capacity up to 1.19 g g-1 or 0.38 g cm-3 for adsorption heat transformation can be achieved using R-134a (1,1,1,2-tetrafluroethane) as a working fluid.
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Affiliation(s)
- Zong-Wen Mo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Hao-Long Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Rui-Biao Lin
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Pei-Qin Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Chun-Ting He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wei-Xiong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
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12
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Adsorption and desorption dynamics of CF4 on activated carbon beds: Validity of the linear driving force approximation for pressure-changing steps. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0181-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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