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Xie G, Qiu J, Li H, Luo H, Li S, Zeng Y, Zheng K, Wang X. Facile construction of heterogeneous dual-ionic poly(ionic liquid)s for efficient and mild conversion of CO 2 into cyclic carbonates. J Environ Sci (China) 2025; 149:177-187. [PMID: 39181632 DOI: 10.1016/j.jes.2023.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 08/27/2024]
Abstract
In the context of peaking carbon dioxide emissions and carbon neutrality, development of feasible methods for converting CO2 into high value-added chemicals stands out as a hot subject. In this study, P[D+COO-][Br-][DBUH+], a series of novel heterogeneous dual-ionic poly(ionic liquid)s (PILs) were synthesized readily from 2-(dimethylamino) ethyl methacrylate (DMAEMA), bromo-substituted aliphatic acids, organic bases and divinylbenzene (DVB). The structures, compositions and morphologies were characterized or determined by nuclear magnetic resonance (NMR), thermal gravimetric analysis (TGA), infrared spectroscopy (IR), scanning electron microscopes (SEM), and Brunauer-Emmett-Teller analysis (BET), etc. Application of the P[D+COO-][Br-][DBUH+] series as catalysts in converting CO2 into cyclic carbonates showed that P[D+COO-][Br-][DBUH+]-2/1/0.6 was able to catalyze epiclorohydrin-CO2 cycloaddition the most efficiently. This afforded chloropropylene carbonate (CPC) in 98.4% yield with ≥ 99% selectivity in 24 hr under solvent- and additive-free conditions at atmospheric pressure. Reusability experiments showed that recycling of the catalyst 6 times only resulted in a slight decline in the catalytic performance. In addition, it could be used for the synthesis of a variety of differently substituted cyclic carbonates in good to excellent yields. Finally, key catalytic active sites were probed, and a reasonable mechanism was proposed accordingly. In summary, this work poses an efficient strategy for heterogenization of dual-ionic PILs and provides a mild and environmentally benign approach to the fixation and utilization of carbon dioxide.
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Affiliation(s)
- Guanqun Xie
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Jiaxiang Qiu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Huadeng Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Hongbin Luo
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Shuo Li
- School of Materials Science and Engineering, Guangdong Provincial Engineering Technology Research Center of Key Material for High Performance Copper Clad Laminate, Dongguan University of Technology, Dongguan 523808, China
| | - Yanbin Zeng
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Ke Zheng
- School of Materials Science and Engineering, Guangdong Provincial Engineering Technology Research Center of Key Material for High Performance Copper Clad Laminate, Dongguan University of Technology, Dongguan 523808, China
| | - Xiaoxia Wang
- School of Materials Science and Engineering, Guangdong Provincial Engineering Technology Research Center of Key Material for High Performance Copper Clad Laminate, Dongguan University of Technology, Dongguan 523808, China.
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2
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Synthesis and Modification of Nanoparticles with Ionic Liquids: a Review. BIONANOSCIENCE 2023. [DOI: 10.1007/s12668-023-01075-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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3
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Zhao Z, Lu J, Lin W, Wang X, Bai J, Zheng X, Xie R, Shi G, Li H, Wang C. Highly Efficient Hydration of Epoxides under Atmospheric Pressure and Low Water/Epoxide Ratios by a Tunable Azolate Ionic Liquid through Anion–Cation Synergetic Catalysis. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhenyu Zhao
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Jiawei Lu
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Wenjun Lin
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Xuming Wang
- Safety and Environmental Institute, Zhejiang NHU CO., Ltd., Shaoxing 312500, PR China
| | - Jiayi Bai
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Xueqiu Zheng
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Rixin Xie
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Guiling Shi
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Haoran Li
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
| | - Congmin Wang
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University, Hangzhou 310027, China
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Xu J, Xu H, Dong A, Zhang H, Zhou Y, Dong H, Tang B, Liu Y, Zhang L, Liu X, Luo J, Bie L, Dai S, Wang Y, Sun X, Li Y. Strong Electronic Metal-Support Interaction between Iridium Single Atoms and a WO 3 Support Promotes Highly Efficient and Robust CO 2 Cycloaddition. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206991. [PMID: 36081338 DOI: 10.1002/adma.202206991] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/06/2022] [Indexed: 06/15/2023]
Abstract
The carbon dioxide (CO2 ) cycloaddition of epoxides to cyclic carbonates is of great industrial importance owing to the high economical values of its products. Single-atom catalysts (SACs) have great potential in CO2 cycloaddition by virtue of their high atom utilization efficiency and desired activity, but they generally suffer from poor reaction stability and catalytic activity arising from the weak interaction between the active centers and the supports. In this work, Ir single atoms stably anchored on the WO3 support (Ir1 -WO3 ) are developed with a strong electronic metal-support interaction (EMSI). Superior CO2 cycloaddition is realized in the Ir1 -WO3 catalyst via the EMSI effect: 100% conversion efficiency for the CO2 cycloaddition of styrene oxide to styrene carbonate after 15 h at 40 °C and excellent stability with no degradation even after ten reaction cycles for a total of more than 150 h. Density functional theory calculations reveal that the EMSI effect results in significant charge redistribution between the Ir single atoms and the WO3 support, and consequently lowers the energy barrier associated with epoxide ring opening. This work furnishes new insights into the catalytic mechanism of CO2 cycloaddition and would guide the design of stable SACs for efficient CO2 cycloaddition reactions.
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Affiliation(s)
- Jie Xu
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
- Jiangsu Key Laboratory for Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, China
| | - Heng Xu
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
| | - Anqi Dong
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Hao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
- Jiangsu Key Laboratory for Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, China
| | - Yitong Zhou
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Hao Dong
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
| | - Bo Tang
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
| | - Yifei Liu
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
| | - Lexi Zhang
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
| | - Xijun Liu
- MOE Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materials, and Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resource, Environments and Materials, Guangxi University, Nanning, 530004, China
| | - Jun Luo
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
| | - Lijian Bie
- School of Materials Science and Engineering, Tianjin Key Lab of Photoelectric Materials & Devices, Tianjin University of Technology, Tianjin, 300384, China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yuhang Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
- Jiangsu Key Laboratory for Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, China
| | - Xuhui Sun
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Yanguang Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
- Jiangsu Key Laboratory for Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, China
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Shang S, Shao W, Luo X, Zuo M, Wang H, Zhang X, Xie Y. Facet Engineering in Constructing Lewis Acid-Base Pairs for CO 2 Cycloaddition to High Value-Added Carbonates. Research (Wash D C) 2022; 2022:9878054. [PMID: 36320636 PMCID: PMC9590269 DOI: 10.34133/2022/9878054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/15/2022] [Indexed: 11/12/2022] Open
Abstract
Cycloaddition of epoxides with CO2 to synthesis cyclic carbonates is an atom-economic pathway for CO2 utilization with promising industry application value, while its efficiency was greatly inhibited for the lack of highly active catalytic sites. Herein, by taking BiOX (X = Cl, Br) with layered structure for example, we proposed a facet engineering strategy to construct Lewis acid-base pairs for CO2 cycloaddition, where the typical BiOBr with (010) facets expose surface Lewis acid Bi sites and Lewis base Br sites simultaneously. By the combination of in-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and theoretical calculations, the oxygen atom of the epoxide is interacted with the Lewis acid Bi site to activate the ternary ring, then facilitates the attack of the carbon atom by the Lewis base Br site for the ring-opening of the epoxide, which is the rate-determining step in the cycloaddition reaction. As a result, the BiOBr-(010) with rich surface Lewis acid-base pairs showed a high conversion of 85% with 100% atomic economy in the synthesis of cyclic-carbonates without any cocatalyst. This study provides a model structure for CO2 cycloaddition to high value-added long chain chemicals.
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Affiliation(s)
- Shu Shang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Wei Shao
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Xiao Luo
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Ming Zuo
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Hui Wang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Xiaodong Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
| | - Yi Xie
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
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6
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Duan C, Xie Y, Ding M, Feng Y, Yao J. Design of carbonized melamine sponge@MOFs composites bearing diverse acid-base properties for boosting thermal and solar-driven CO2 cycloaddition. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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8
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Liu N, Wu F, Xu J, Xue B, Luo J. ZrO2 Supported on Graphitic Carbon Nitride Based on Metal–Nitrogen Interaction for Enhanced Catalytic Cycloaddition of CO2 to Cyclic Carbonates. Catal Letters 2022. [DOI: 10.1007/s10562-022-04083-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Jiang B, Liu J, Yang G, Zhang Z. Efficient conversion of CO2 into cyclic carbonates under atmospheric by halogen and metal-free Poly (ionic liquid)s. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.05.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Peng Q, Wang H, Xia Y. Quercetin-Zirconium: A Green and Highly Efficient Catalyst for the Meerwein–Ponndorf–Verley Reduction of Furfural. Catal Letters 2022. [DOI: 10.1007/s10562-022-04009-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Chang T, Yan X, Li Y, Hao Y, Fu X, Liu X, Panchal B, Qin S, Zhu Z. Quaternary ammonium immobilized PAMAM as efficient catalysts for conversion of carbon dioxide. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.101913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Yang C, Chen Y, Wang X, Sun J. Polymeric ionic liquid with carboxyl anchored on mesoporous silica for efficient fixation of carbon dioxide. J Colloid Interface Sci 2022; 618:44-55. [PMID: 35325699 DOI: 10.1016/j.jcis.2022.03.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/22/2022] [Accepted: 03/15/2022] [Indexed: 01/19/2023]
Abstract
The utilization of carbon dioxide (CO2) has drawn much attention because of the increasing serious environmental problems. In order to promote the cycloaddition reaction of CO2 to epoxides, a new synthesis strategy for friendly nonmetal catalyst to combine polymeric ionic liquid (PIL) with mesoporous silica (mSiO2) was proposed. By thorough characterizations, those catalysts (mSiO2-PIL-n, n = 1, 2, 3, 4) were verified that PIL with multiply catalytic active sites such as carboxyl group, imidazole ring and Br-, was mainly anchored in mesoporous SiO2 structures. Therefore, mSiO2-PIL-n exhibited excellent catalytic activity for CO2 cycloaddition reaction to epoxides under solventless and cocatalyst-free conditions. Typically, the appropriate PIL loading and specific surface area guaranteed mSiO2-PIL-2 could efficiently catalyze the cycloaddition reaction with 96% yield and 99% selectivity to the target product of propylene carbonate under the conditions of 120 °C, 2 MPa and 6 h. Additionally, the mSiO2-PIL-2 catalyst showed superior recyclability and there was no catalytic activity decrease for 10 runs of recycling due to the tightly anchored PIL on mesoporous SiO2 by copolymerization. And the catalytic activity to other substituted epoxides over mSiO2-PIL-2 was also expanded. Therefore, PIL anchored on mesoporous SiO2 by copolymerization could be a promising synthetic strategy for the efficient catalyst to combine multiple active components in a single catalyst, meanwhile, mSiO2-PIL-n exhibited an appealing catalyst candidate for the effective fixation and utilization of CO2.
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Affiliation(s)
- Chaokun Yang
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, PR China
| | - Yanglin Chen
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, PR China
| | - Xin Wang
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, PR China
| | - Jianmin Sun
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, PR China.
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Yin Y, Qiu A, Gao H, Na Y, Liang Z. Experimental Study of the mass transfer behavior of carbon dioxide absorption into Ternary phase change solution in a Packed Tower. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.01.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Jiang Y, Zhao Y, Liang L, Zhang X, Sun J. Imidazolium-based poly(ionic liquid)s@MIL-101 for CO 2 adsorption and subsequent catalytic cycloaddition without additional cocatalyst and solvent. NEW J CHEM 2022. [DOI: 10.1039/d1nj05358b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly(ionic liquid)@MIL-101 incorporates an ionic liquid in a MOF and can be used in CO2 capture and conversion.
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Affiliation(s)
- Yichen Jiang
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China
| | - Yifei Zhao
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China
| | - Lin Liang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, China
| | - Xiao Zhang
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China
| | - Jianmin Sun
- State Key Laboratory of Urban Water Resource and Environment, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China
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15
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Efficient homogenous catalysis of CO2 to generate cyclic carbonates by heterogenous and recyclable polypyrazoles. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Imidazolium-based deep eutectic solvents as multifunctional catalysts for multisite synergistic activation of epoxides and ambient synthesis of cyclic carbonates. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101717] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Wan YL, Zhang Z, Ding C, Wen L. Facile construction of bifunctional porous ionic polymers for efficient and metal-free catalytic conversion of CO2 into cyclic carbonates. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101673] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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Ionization of Porous Hypercrosslinked Polymers for Catalyzing Room-Temperature CO2 Reduction via Formamides Synthesis. Catal Letters 2021. [DOI: 10.1007/s10562-020-03527-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Arora S, Gupta N, Singh V. pH-Controlled Efficient Conversion of Hemicellulose to Furfural Using Choline-Based Deep Eutectic Solvents as Catalysts. CHEMSUSCHEM 2021; 14:3953-3958. [PMID: 34324272 DOI: 10.1002/cssc.202101130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/17/2021] [Indexed: 06/13/2023]
Abstract
The valorization of hemicellulose isolated from lignocellulosic biomass (wheat straw, rice husk, and bagasse) to furfural was achieved by pH-controlled acid catalysis using choline-based Brønsted acidic (BA) and natural acidic (NA) deep eutectic solvents (DES) serving both as catalyst and solvent. The effect of pH variation on the catalytic activity of various BADES and NADES prepared in 1 : 1 molar ratio was observed, and choline chloride/p-toluene sulfonic acid (ChCl/p-TSA) was found to be the best with lower pH value of 1.0. The yield of furfural decreased from 85 to 51 % with increase in pH from 1.0 to 3.0. The molar ratio of hydrogen bond donor to acceptor components was varied from 1 : 1 to 1 : 9 to achieve the lowest possible pH values of the DESs and to increase the furfural yield. Further optimization of reaction conditions was also done in terms of DES loading, time of reaction, and temperature using the model DES to achieve higher furfural yield. The best results were obtained using 5 mmol DES at pH 1.0 in 1.5 h at 120 °C. ChCl/p-TSA and ChCl/oxalic acid among BADES and ChCl/levulinic acid among NADES investigated in this work yielding 85 % furfural were found to be most efficient. The reported methodology is advantageous in terms of using bio-based green solvents, mild reaction conditions, and efficient scale-up of the reaction. The DESs were found to be efficiently recyclable up to five consecutive runs for the process.
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Affiliation(s)
- Shalini Arora
- Department of Applied Sciences, Punjab Engineering College (Deemed to be University) Sector-12, Chandigarh
| | - Neeraj Gupta
- Department of Chemistry and Chemical Sciences, Central University of Himachal Pradesh, Dharamshala, H.P, India
| | - Vasundhara Singh
- Department of Applied Sciences, Punjab Engineering College (Deemed to be University) Sector-12, Chandigarh
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Cai K, Liu P, Chen P, Yang C, Liu F, Xie T, Zhao T. Imidazolium- and triazine-based ionic polymers as recyclable catalysts for efficient fixation of CO2 into cyclic carbonates. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101658] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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21
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Wang W, Wu G, Zhu T, Yang Y, Zhang Y. Synthesis of -thiazole Schiff base modified SBA-15 mesoporous silica for selective Pb(II) adsorption. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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Highly efficient CO2 fixation into cyclic carbonate by hydroxyl-functionalized protic ionic liquids at atmospheric pressure. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111756] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Liu L, Jayakumar S, Chen J, Tao L, Li H, Yang Q, Li C. Synthesis of Bifunctional Porphyrin Polymers for Catalytic Conversion of Dilute CO 2 to Cyclic Carbonates. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29522-29531. [PMID: 34133113 DOI: 10.1021/acsami.1c04624] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Development of efficient solid catalysts for catalytic conversion of dilute CO2 is of extreme importance for carbon capture and utilization. We report the synthesis of bifunctional polymers co-incorporated with porphyrin-Zn as Lewis acid sites and Br- as nucleophiles for the cycloaddition of dilute CO2 with epoxides in this work. It was found that the Br-/Zn ratio has a volcano relation with the activity of bifunctional polymers in a cycloaddition reaction, indicating the synergy effect between Lewis acid sites and nucleophiles. The turnover frequency (TOF) of the bifunctional polymer is more than four-fold that of the physical mixture of tetrabutylammonium bromide and porphyrin-Zn-incorporated polymer, implying the enhanced cooperation between Br- and porphyrin-Zn in the polymer network. The bifunctional polymer with optimized Br-/Zn afforded 99% conversion, 99% selectivity, and a TOF as high as 12,000 h-1 for the cycloaddition of CO2 and propylene oxide, which is among the most active solid catalysts ever reported. Furthermore, the bifunctional polymer could efficiently catalyze the cycloaddition of epichlorohydrin with dilute CO2 (7.5% CO2 balanced by N2) even under ambient conditions, demonstrating its potential application in industrial-scale production.
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Affiliation(s)
- Lina Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sanjeevi Jayakumar
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jian Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Lin Tao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - He Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qihua Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Li Q, Huang T, Zhang Z, Xiao M, Gai H, Zhou Y, Song H. Highly Efficient Hydrogenation of CO2 to Formic Acid over Palladium Supported on Dication Poly(ionic liquid)s. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111644] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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25
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Jiao GJ, Ma J, Zhang Y, Jin D, Li Y, Hu C, Guo Y, Wang Z, Zhou J, Sun R. Nitrogen-doped lignin-derived biochar with enriched loading of CeO 2 nanoparticles for highly efficient and rapid phosphate capture. Int J Biol Macromol 2021; 182:1484-1494. [PMID: 34019923 DOI: 10.1016/j.ijbiomac.2021.05.109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/06/2021] [Accepted: 05/16/2021] [Indexed: 12/28/2022]
Abstract
Development of lignin-derived carbon adsorbents with ultrahigh phosphate adsorption activity and rapid adsorption kinetics is of great importance, yet limited success has been achieved. Herein, we develop a CeO2 functionalized N-doped lignin-derived biochar (Ce@NLC) via a cooperative modification strategy for effective and fast phosphate capture. The novel modification strategy not only contributes greatly to the loading of well-dispersed CeO2 nanoparticles with a smaller size, but also significantly increases the relative concentration of Ce(III) species on Ce@NLC. Consequently, an enhanced capture capacity for phosphate (196.85 mg g-1) as well as extremely rapid adsorption kinetics were achieved in a wide operating pH range (2-10). Interestingly, Ce@NLC exhibited a strong phosphate adsorption activity at even low-concentration phosphorus-containing water. The removal efficiency and final P concentration reached 99.87% and 2.59 μg P L-1 within 1 min at the phosphate concentration of 2 mg P L-1. Experiments and characterization indicated that Ce(III) species plays a predominant role for the phosphate capture, and ligand exchange, together with electrostatic attraction, are the main adsorption mechanism. This work develops not only an efficient carbon-based adsorbent for phosphate capture, but also promotes the high-value application of industrial lignin.
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Affiliation(s)
- Gao-Jie Jiao
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Jiliang Ma
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, China.
| | - Yuheng Zhang
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Dongnv Jin
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Yancong Li
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Chensheng Hu
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Yanzhu Guo
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
| | - Zhiwei Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jinghui Zhou
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Runcang Sun
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
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26
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Mao FF, Zhou Y, Zhu W, Sang XY, Li ZM, Tao DJ. Synthesis of Guanidinium-Based Poly(ionic liquids) with Nonporosity for Highly Efficient SO 2 Capture from Flue Gas. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01118] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Fei-Feng Mao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Yan Zhou
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Wenshuai Zhu
- School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Xiao-Yan Sang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Zhang-Min Li
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Duan-Jian Tao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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27
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Zr-DBS with Sulfonic Group: A Green and Highly Efficient Catalyst for Alcoholysis of Furfuryl Alcohol to Ethyl Levulinate. Catal Letters 2021. [DOI: 10.1007/s10562-020-03516-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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28
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Effects of Ti4+ doping on residual Na contents and catalytic properties of MgAl-LDH-derived MMOs in cycloaddition of CO2 to styrene oxide. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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29
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Baalbaki HA, Roshandel H, Hein JE, Mehrkhodavandi P. Conversion of dilute CO2 to cyclic carbonates at sub-atmospheric pressures by a simple indium catalyst. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02028a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A simple indium halide with an ammonium salt catalyst can catalyze effectively the cycloaddition of epoxide and dilute CO2. A detailed mechanistic investigation is conducted using kinetics, isotope labeling, and in situ NMR and IR experiments.
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Affiliation(s)
| | - Hootan Roshandel
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - Jason E. Hein
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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30
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Hui W, Wang X, Li XN, Wang HJ, He XM, Xu XY. Protic ionic liquids tailored by different cationic structures for efficient chemical fixation of diluted and waste CO 2 into cyclic carbonates. NEW J CHEM 2021. [DOI: 10.1039/d1nj00990g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Environment-friendly approaches to directly convert atmospheric or flue gas CO2 to high-value chemicals is of great significance yet challenging.
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Affiliation(s)
- Wei Hui
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Xiang Wang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Xiao-Ning Li
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Hai-Jun Wang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Xue-Mei He
- Department of Chemistry
- School of Science
- Jiangxi Agricultural University
- Nanchang 330045
- China
| | - Xin-Yi Xu
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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31
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Jamil R, Tomé LC, Mecerreyes D, Silvester DS. Emerging Ionic Polymers for CO2 Conversion to Cyclic Carbonates: An Overview of Recent Developments. Aust J Chem 2021. [DOI: 10.1071/ch21182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this mini review, we highlight some key work from the last 2 years where ionic polymers have been used as a catalyst to convert CO2 into cyclic carbonates. Emerging ionic polymers reported for this catalytic application include materials such as poly(ionic liquid)s (PILs), ionic porous organic polymers (iPOPs) or ionic covalent organic frameworks (iCOFs) among others. All these organic materials share in common the ionic moiety cations such as imidazolium, pyridinium, viologen, ammonium, phosphonium, and guanidinium, and anions such as halides, [BF4]–, [PF6]–, and [Tf2N]–. The mechanistic aspects and efficiency of the CO2 conversion reaction and the polymer design including functional groups and porosity are discussed in detail. This review should provide valuable information for researchers to design new polymers for important catalysis applications.
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32
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Elyasi Z, Safaei Ghomi J, Najafi GR, Zand Monfared MR. The influence of the polymerization approach on the catalytic performance of novel porous poly (ionic liquid)s for green synthesis of pharmaceutical spiro-4-thiazolidinones. RSC Adv 2020; 10:44159-44170. [PMID: 35517141 PMCID: PMC9058518 DOI: 10.1039/d0ra08647a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 11/23/2020] [Indexed: 12/17/2022] Open
Abstract
Although poly (ionic liquids) (PILs) have attracted great research interest owing to their various applications, the performance of nanoporous PILs has been rarely developed in the catalysis field. To this end, a micro–mesoporous PIL with acid–base bifunctional active sites was designed and fabricated by two different polymerization protocols including hydrothermal and classical precipitation polymerization in this paper. Based on our observations, hydrothermal conditions (high temperature and pressure) enabled the proposed sonocatalyst to possess a great porous structure with a high specific surface area (SBET: 315 m2 g−1) and thermal stability (around 450 °C for 45% weight loss) through strengthening cross-linking. In a comparative study, the preferred nanoporous PIL was selected and utilized as the sonocatalyst in a multicomponent reaction of isatins, primary amines, and thioglycolic acid. In the following, a variety of new and known pharmaceutical spiro-4-thiazolidinone derivatives were synthesized at room temperature and obtained excellent yields (>90%) within short reaction times (4–12 min) owing to the substantial synergistic effect between ultrasound irradiation and magnetically separable catalyst. Sustainable synthesize of a new mesoporous poly (ionic liquid) as acid–base bifunctional catalyst for environmental being preparation of monospiro derivatives has been developed.![]()
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Affiliation(s)
- Zahra Elyasi
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385
| | - Javad Safaei Ghomi
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385.,Department of Organic Chemistry, Faculty of Chemistry, University of Kashan Iran
| | - Gholam Reza Najafi
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385
| | - Mohammad Reza Zand Monfared
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385
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33
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Chen Y, Luo R, Ren Q, Zhou X, Ji H. Click-Based Porous Ionic Polymers with Intercalated High-Density Metalloporphyrin for Sustainable CO2 Transformation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03766] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yaju Chen
- School of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Fine Chemical Industry Research Institute, School of Chemistry, Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Sun Yat-sen University, Guangzhou 510275, China
| | - Rongchang Luo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Qinggang Ren
- School of Materials Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Xiantai Zhou
- Fine Chemical Industry Research Institute, School of Chemistry, Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Sun Yat-sen University, Guangzhou 510275, China
| | - Hongbing Ji
- School of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Fine Chemical Industry Research Institute, School of Chemistry, Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, Sun Yat-sen University, Guangzhou 510275, China
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34
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Wang C, Huang D, He F, Jin T, Huang B, Xu J, Qian Y. Efficient Removal of Uranium(VI) from Aqueous Solutions by Triethylenetetramine-Functionalized Single-Walled Carbon Nanohorns. ACS OMEGA 2020; 5:27789-27799. [PMID: 33163762 PMCID: PMC7643088 DOI: 10.1021/acsomega.0c02715] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 09/22/2020] [Indexed: 05/29/2023]
Abstract
In the present study, SWCNH-COOH and SWCNH-TETA were fabricated using single-walled carbon nanohorns (SWCNHs) via carboxylation and grafting with triethylenetetramine (TETA) for uranium (VI) ion [U(VI)] removal. The morpho-structural characterization of as-prepared adsorbing materials was performed by transmission electron microscopy, X-ray diffractometry, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Several parameters including the pH value of the aqueous solutions, contact time, temperature, and U(VI) concentration were used to evaluate the sorption efficiency of SWCNH-COOH and SWCNH-TETA. The Langmuir isotherm model could well represent the as-obtained adsorption isotherms, and the kinetics was successfully modeled by pseudo-second-order kinetics in the adsorption process. The maximum adsorption capacity of SWCNH-TETA was calculated as 333.13 mg/g considering the Langmuir isotherm model. Thermodynamic studies showed that adsorption proved to be a spontaneous endothermic process. Moreover, SWCNH-TETA exhibited excellent recycling performance and selective adsorption of uranium. Furthermore, the possible mechanism was investigated by XPS and density functional theory calculations, indicating that the excellent adsorption was attributed to the cooperation capability between uranium ions and nitrogen atoms in SWCNH-TETA. This efficient approach can provide a strategy for developing high-performance adsorbents for U(VI) removal from wastewater.
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35
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Abstract
This mini-review briefly describes the recent progress in the design and development of catalysts based on the presence of ionic liquids. In particular, the focus was on heterogeneous systems (supported ionic liquid (IL) phase catalysts (SILPC), solid catalysts with ILs (SCILL), porous liquids), which due to the low amounts of ionic liquids needed for their production, eliminate basic problems observed in the case of the employment of ionic liquids in homogeneous systems, such as high price, high viscosity, and efficient isolation from post-reaction mixtures.
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36
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Gu Y, Hou Y, Ren S, Sun Y, Wu W. Hydrophobic Functional Deep Eutectic Solvents Used for Efficient and Reversible Capture of CO 2. ACS OMEGA 2020; 5:6809-6816. [PMID: 32258916 PMCID: PMC7114620 DOI: 10.1021/acsomega.0c00150] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 03/04/2020] [Indexed: 06/11/2023]
Abstract
CO2 emission from flue gas is an important issue threatening human survival. Deep eutectic solvents (DESs), which have many unique properties, have been studied for CO2 capture. However, water can be absorbed by DESs during the absorption of CO2, which may increase the energy cost during the desorption of CO2. In this work, a new kind of hydrophobic functional DES formed by polyamine hydrochloride and thymol was synthesized and used for CO2 capture. It had been found that these DESs could efficiently capture CO2 even at low partial pressures. The CO2 capacity of [TEPA]Cl-thymol (n [TEPA]Cl/n thymol = 1:3) was high up to 1.355 mol CO2/mol DES at 40 °C and 101.3 kPa. Interestingly, these DESs were still hydrophobic after saturated with CO2. The CO2 absorption capacity increased with a decrease of temperature and an increase of CO2 partial pressure. Regeneration results showed that no obvious loss in the capacity could be found after five absorption/desorption cycles of these DESs. The Fourier transform infrared (FT-IR) spectra indicated that CO2 could interact with amino in the DESs by the formation of carboxylate. Moreover, the equilibrium constant and Henry's law constant in chemical absorption and physical absorption were studied.
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Affiliation(s)
- Yanxue Gu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yucui Hou
- Department of Chemistry, Taiyuan Normal University, Jinzhong, Shanxi 030619, China
| | - Shuhang Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ying Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Weize Wu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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