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Sardo M, Morais T, Soares M, Vieira R, Ilkaeva M, Lourenço MAO, Marín-Montesinos I, Mafra L. Unravelling the structure of CO 2 in silica adsorbents: an NMR and computational perspective. Chem Commun (Camb) 2024; 60:4015-4035. [PMID: 38525497 PMCID: PMC11003455 DOI: 10.1039/d3cc05942a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
This comprehensive review describes recent advancements in the use of solid-state NMR-assisted methods and computational modeling strategies to unravel gas adsorption mechanisms and CO2 speciation in porous CO2-adsorbent silica materials at the atomic scale. This work provides new perspectives for the innovative modifications of these materials rendering them more amenable to the use of advanced NMR methods.
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Affiliation(s)
- Mariana Sardo
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tiago Morais
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemistry, University of Iceland, Science Institute, Dunhaga 3, 107 Reykjavik, Iceland
| | - Márcio Soares
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ricardo Vieira
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Marina Ilkaeva
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Chemical and Environmental Engineering, University of Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain
| | - Mirtha A O Lourenço
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ildefonso Marín-Montesinos
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Luís Mafra
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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2
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Ullah S, McKee ML, Samokhvalov A. A zinc-containing porphyrin aluminum MOF in sorption of diethyl sulfide vapor: mechanistic experimental and computational study. Phys Chem Chem Phys 2023; 25:31884-31897. [PMID: 37971379 DOI: 10.1039/d3cp03779g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
We report a mechanistic study of the interactions in the sorption of volatile organic sulfur compound (VOSC) diethyl sulfide (DES) by zinc porphyrin aluminum MOF (actAl-MOF-TCPPZn) compound 3. First, interactions were studied under dynamic conditions with the vapor of DES in flowing air, using in situ time-dependent ATR-FTIR spectroscopy in a controlled atmosphere with a new facile spectroscopic mini-chamber. The first binding site includes μ(O-H) and COO- groups as detected by characteristic peak shifts. Control experiments with a model compound, which lacks porosity and these groups, show no peak shifts. An additional insight was obtained by DFT computations using small clusters. The kinetics of sorption of DES by compound 3 is of the Langmuir adsorption model and pseudo-first order with rate constant robs = 0.442 ± 0.056 min-1. Sorption of DES under static conditions in saturated vapor results in stoichiometric adsorption complex [Al-MOF-TCPPZn]1(DES)4 characterized by spectroscopic, structural and gravimetric methods; the adsorbed amount is very high (381 mg g-1 sorbent). The repetitive sorption and desorption of DES are conducted, with facile regeneration. Finally, the mechanistic details were determined by Raman and photoluminescence (PL) spectroscopy using a confocal Raman microscope. Photoexcitation of compound 3 at 405 nm into the Soret band of the metalloporphyrin linker shows the characteristic PL peaks of Q-bands: the purely electronic Q(0-0) and first vibronic Q(0-1) bands. Upon interaction with DES, preferential quenching of PL from the Q(0-0) band occurs with a significant increase of the signal of the vibronic Q(0-1) band, reflecting bonding to the metalloporphyrin ring. Compound 3 is of interest to mechanistic studies of VOSCs, their removal from air, and optical chemo-sensing.
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Affiliation(s)
- Shaheed Ullah
- Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA.
| | - Michael L McKee
- Department of Chemistry and Biochemistry, 179 Chemistry Building, Auburn University, Auburn, AL 36849, USA
| | - Alexander Samokhvalov
- Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA.
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3
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Ullah S, McKee ML, Samokhvalov A. Interaction of a Porphyrin Aluminum Metal-Organic Framework with Volatile Organic Sulfur Compound Diethyl Sulfide Studied via In Situ and Ex Situ Experiments and DFT Computations. Nanomaterials (Basel) 2023; 13:2916. [PMID: 37999269 PMCID: PMC10675828 DOI: 10.3390/nano13222916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/25/2023]
Abstract
The study presents complementary experiments and quantum chemical DFT computations to reveal the molecular-level interactions of an advanced nanomaterial, porphyrin aluminum metal-organic framework (compound 2), with the volatile organic sulfur compound diethyl sulfide (DES). First, the intermolecular host-guest interactions during the sorption of DES were explored under dynamic conditions, using the vapor of DES in flowing air. The in situ time-dependent ATR-FTIR spectroscopy in a controlled atmosphere was significantly improved though the use of a new facilely built spectroscopic mini-chamber. The binding site of DES in compound 2 involves the μ(O-H) and COO- groups of the linker of the sorbent. Further, the chemical kinetics of the sorption of DES was investigated, and it follows the Langmuir adsorption kinetic model. That is, depending on the time interval, the process obeys either the pseudo-first- or pseudo-second-order rate law. For the Langmuir adsorption of the pseudo-first order, the rate constant is robs = 0.165 ± 0.017 min-1. Next, the interaction of compound 2 with the saturated vapor of DES yields the adsorption complex compound 3 [Al-MOF-TCPPH2]2(DES)7. The adsorbed amount of DES is very large at 36.5 wt.% or 365 mg/g sorbent, one of the highest values reported on any sorbent. The molecular modes of bonding of DES in the complex were investigated through quantum chemical DFT computations. The adsorption complex was facilely regenerated by gentle heating. The advanced functional material in this work has significant potential in the environmental remediation of diethyl sulfide and related volatile organic sulfur compounds in air, and it is an interesting target of mechanistic studies of sorption.
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Affiliation(s)
- Shaheed Ullah
- Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA
| | - Michael L. McKee
- Department of Chemistry and Biochemistry, 179 Chemistry Building, Auburn University, Auburn, AL 36849, USA;
| | - Alexander Samokhvalov
- Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA
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4
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Abstract
Modern global industrialization along with the ever-increasing growth of the population has resulted in continuous enhancement in the discharge and accumulation of various toxic and hazardous chemicals in the environment. These harmful pollutants, including toxic gases, inorganic heavy metal ions, anthropogenic waste, persistent organic pollutants, toxic dyes, pharmaceuticals, volatile organic compounds, etc., are destroying the ecological balance of the environment. Therefore, systematic monitoring and effective remediation of these toxic pollutants either by adsorptive removal or by catalytic degradation are of great significance. From this viewpoint, porous organic polymers (POPs), being two- or three-dimensional polymeric materials, constructed from small organic molecules connected with rigid covalent bonds have come forth as a promising platform toward various leading applications, especially for efficient environmental remediation. Their unique chemical and structural features including high stability, tunable pore functionalization, and large surface area have boosted the transformation of POPs into various macro-physical forms such as thick and thin-film membranes, which led to a new direction in advanced level pollutant removal, separation and catalytic degradation. In this review, our focus is to highlight the recent progress and achievements in the strategic design, synthesis, architectural-engineering and applications of POPs and their composite materials toward environmental remediation. Several strategies to improve the adsorption efficiency and catalytic degradation performance along with the in-depth interaction mechanism of POP-based materials have been systematically summarized. In addition, evolution of POPs from regular powder form application to rapid and more efficient size and chemo-selective, "real-time" applicable membrane-based application has been further highlighted. Finally, we put forward our perspective on the challenges and opportunities of these materials toward real-world implementation and future prospects in next generation remediation technology.
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Affiliation(s)
- Sahel Fajal
- Department of Chemistry, Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 411008, India.
| | - Subhajit Dutta
- Department of Chemistry, Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 411008, India.
| | - Sujit K Ghosh
- Department of Chemistry, Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 411008, India.
- Centre for Water Research, Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 411008, India
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Schweng P, Mayer F, Galehdari D, Weiland K, Woodward RT. A Robust and Low-Cost Sulfonated Hypercrosslinked Polymer for Atmospheric Water Harvesting. Small 2023:e2304562. [PMID: 37621031 DOI: 10.1002/smll.202304562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/01/2023] [Indexed: 08/26/2023]
Abstract
The availability of freshwater is rapidly declining due to over-exploitation and climate change, with multiple parts of the globe already facing significant freshwater scarcity. Here, a sulfonated hypercrosslinked polymer able to repeatedly harvest significant amounts of water via direct air capture is reported. Water uptake from relative humidities as low as 10% is demonstrated, mimicking some of the harshest environments on Earth. A water harvesting device is used to show repeated uptake and harvesting without significant detriment to adsorbent performance. Desorption is triggered using simulated sunlight, presenting a low-energy route to water harvesting and adsorbent regeneration. The synthesis of sulfonated hypercrosslinked polymer requires only low-cost and readily available reagents, offering excellent potential for scale-up. Due to an almost limitless supply of water vapor from air in most regions around the globe, this approach can transform our ability to address water security concerns.
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Affiliation(s)
- Paul Schweng
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria
| | - Florian Mayer
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria
| | - Danial Galehdari
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria
| | - Kathrin Weiland
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria
| | - Robert T Woodward
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria
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Chen B, Xie H, Shen L, Xu Y, Zhang M, Zhou M, Li B, Li R, Lin H. Covalent Organic Frameworks: The Rising-Star Platforms for the Design of CO 2 Separation Membranes. Small 2023; 19:e2207313. [PMID: 36709424 DOI: 10.1002/smll.202207313] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/08/2023] [Indexed: 06/18/2023]
Abstract
Membrane-based carbon dioxide (CO2 ) capture and separation technologies have aroused great interest in industry and academia due to their great potential to combat current global warming, reduce energy consumption in chemical separation of raw materials, and achieve carbon neutrality. The emerging covalent organic frameworks (COFs) composed of organic linkers via reversible covalent bonds are a class of porous crystalline polymers with regular and extended structures. The inherent structure and customizable organic linkers give COFs high and permanent porosity, short transport channel, tunable functionality, and excellent stability, thereby enabling them rising-star alternatives for developing advanced CO2 separation membranes. Therefore, the promising research areas ranging from development of COF membranes to their separation applications have emerged. Herein, this review first introduces the main advantages of COFs as the state-of-the-art membranes in CO2 separation, including tunable pore size, modifiable surfaces property, adjustable surface charge, excellent stability. Then, the preparation approaches of COF-based membranes are systematically summarized, including in situ growth, layer-by-layer stacking, blending, and interface engineering. Subsequently, the key advances of COF-based membranes in separating various CO2 mixed gases, such as CO2 /CH4 , CO2 /H2 , CO2 /N2 , and CO2 /He, are comprehensively discussed. Finally, the current issues and further research expectations in this field are proposed.
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Affiliation(s)
- Binghong Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Hongli Xie
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yanchao Xu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Meijia Zhang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Mingzhu Zhou
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Bisheng Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Renjie Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
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7
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Samokhvalov A, McCombs S. In Situ Time-Dependent Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopy of a Powdered Specimen in a Controlled Atmosphere: Monitoring Sorption and Desorption of Water Vapor. Appl Spectrosc 2023; 77:308-319. [PMID: 36526443 DOI: 10.1177/00037028221148492] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy is a powerful instrumental method of chemical analysis of solids and liquids. The majority of published studies by in situ ATR FT-IR spectroscopy describe analysis of homogeneous samples, such as liquid solutions under circulation, or films on the ATR crystal that react with the gas of interest. The in situ ATR FT-IR spectroscopic studies of specimens in physical shape of crystals or powder that react with a gas or vapor are rare. This work describes a modification of in situ time-dependent ATR FT-IR spectroscopy to allow monitoring heterogeneous reaction "solid-gas" of powder in controlled atmosphere and in the time domain. Also, we describe a new facile gas flow chamber attachment to ATR FT-IR spectrometer which allows creating controlled atmosphere surrounding the specimen on the ATR crystal. Additionally, the capabilities of the described in situ time-dependent ATR FT-IR spectroscopy experiment in controlled atmosphere are enhanced by the sensor for in situ time-dependent monitoring the relative humidity (RH) of air surrounding the specimen. The operation of the setup for in situ time-dependent ATR FT-IR spectroscopy in controlled atmosphere is demonstrated by monitoring reaction of gradual desorption of water vapor from color-indicating molecular sieves under controlled low air humidity. Further, the described spectroscopic method and apparatus is applied to monitor the reverse process, namely sorption of water vapor by color-indicating molecular sieves under controlled elevated air humidity. Water molecules are found to reversibly interact with two distinct sorption sites in the sorbent: the Si-O backbone and the color-indicating Co(II) centers. The reported variant of in situ time-dependent ATR FT-IR spectroscopy in controlled atmosphere is powerful, yet facile and straightforward. It is promising for mechanistic, in situ studies of sorption, desorption, chemosensing, heterogeneous catalysis and photocatalysis, and analysis of chemical kinetics of various "solid-gas" reactions.
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Affiliation(s)
| | - Stanley McCombs
- Department of Physics & Engineering Physics, 1491Morgan State University, Baltimore, MD, USA
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Eisen C, Ge L, Santini E, Chin JM, Woodward RT, Reithofer MR. Hyper crosslinked polymer supported NHC stabilized gold nanoparticles with excellent catalytic performance in flow processes. Nanoscale Adv 2023; 5:1095-1101. [PMID: 36798502 PMCID: PMC9926895 DOI: 10.1039/d2na00799a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 11/18/2022] [Indexed: 06/18/2023]
Abstract
Highly active and selective heterogeneous catalysis driven by metallic nanoparticles relies on a high degree of stabilization of such nanomaterials facilitated by strong surface ligands or deposition on solid supports. In order to tackle these challenges, N-heterocyclic carbene stabilized gold nanoparticles (NHC@AuNPs) emerged as promising heterogeneous catalysts. Despite the high degree of stabilization obtained by NHCs as surface ligands, NHC@AuNPs still need to be loaded on support structures to obtain easily recyclable and reliable heterogeneous catalysts. Therefore, the combination of properties obtained by NHCs and support structures as NHC bearing "functional supports" for the stabilization of AuNPs is desirable. Here, we report the synthesis of hyper-crosslinked polymers containing benzimidazolium as NHC precursors to stabilize AuNPs. Following the successful synthesis of hyper-crosslinked polymers (HCP), a two-step procedure was developed to obtain HCP·NHC@AuNPs. Detailed characterization not only revealed the successful NHC formation but also proved that the NHC functions as a stabilizer to the AuNPs in the porous polymer network. Finally, HCP·NHC@AuNPs were evaluated in the catalytic decomposition of 4-nitrophenol. In batch reactions, a conversion of greater than 99% could be achieved in as little as 90 s. To further evaluate the catalytic capability of HCP·NHC@AuNP, the catalytic decomposition of 4-nitrophenol was also performed in a flow setup. Here the catalyst not only showed excellent catalytic conversion but also exceptional recyclability while maintaining the catalytic performance.
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Affiliation(s)
- Constantin Eisen
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna Währinger Straße 42 1090 Vienna Austria
| | - Lingcong Ge
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna Währinger Straße 42 1090 Vienna Austria
| | - Elena Santini
- Institute of Material Chemistry and Research, Faculty of Chemistry, University of Vienna Währinger Straße 42 1090 Vienna Austria
| | - Jia Min Chin
- Institute of Inorganic Chemistry - Functional Materials, University of Vienna Währinger Straße 42 1090 Vienna Austria
| | - Robert T Woodward
- Institute of Material Chemistry and Research, Faculty of Chemistry, University of Vienna Währinger Straße 42 1090 Vienna Austria
| | - Michael R Reithofer
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna Währinger Straße 42 1090 Vienna Austria
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Tian Y, Wang Y, Liu L, Dong H, Zhu X, Ma F, Zhang C. Fabrication of amidoxime functionalized hyper-cross-linked polymer for efficient extraction of uranium (VI) from water. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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10
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Golubev GS, Sokolov SE, Rokhmanka TN, Bakhtin DS, Borisov IL, Volkov AV. Membranes Based on PTMSP and Hypercrosslinked Polystyrene for Gas Separation and Thermopervaporative Removal of Volatile Organic Compounds from Aqueous Media. Membr Membr Technol 2022. [DOI: 10.1134/s2517751622060038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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11
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Li H, Han X, Yu W, Zhang L, Wei M, Wang Z, Kong F, Wang W. Dimethoxypillar[5]arene knitted porous polymers for efficient removal of organic micropollutants from water. Chemical Engineering Journal Advances 2022. [DOI: 10.1016/j.ceja.2022.100384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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12
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Samanta P, Dutta S, Let S, Sen A, Shirolkar MM, Ghosh SK. Hydroxy-Functionalized Hypercrosslinked Polymers (HCPs) as Dual Phase Radioactive Iodine Scavengers: Synergy of Porosity and Functionality. Chempluschem 2022; 87:e202200212. [PMID: 36066453 DOI: 10.1002/cplu.202200212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/12/2022] [Indexed: 02/18/2024]
Abstract
Large-scale nuclear power plant production of iodine radionuclides (129 I, 131 I) pose huge threat in the events of nuclear disaster. Effective removal of radioiodine from nuclear waste is one of the most critical challenge because of the drawbacks of state-of-the-art adsorbents such as high cost, low uptake capacity and non-recyclability. Herein, two hydroxy-functionalized (-OH) hypercrosslinked polymers (HCPs), namely HCP-91 and HCP-92, have been synthesized and employed towards capture of iodine. High chemical stability along with synergistic harmony of high porosity and functionality of these materials makes them suitable candidates for capture of iodine from both vapor phase and water medium. Moreover, both the HCPs showed superior iodine removal performance from water in terms of fast kinetics and high removal efficiency (2.9 g g-1 and 2.49 g g-1 for HCP-91 and HCP-92 respectively). The role of functionality (-OH groups) and porosity has been established with the help of HCP-91, HCP-92 and non-functionalized biphenyl HCP for the efficient capture of I3 - ions from water. In addition, both HCPs exhibited excellent selectivity and recyclability towards triiodide ions, rendering the potential of these materials towards real-time applications. Lastly, Density functional theoretical studies revealed key insights and corroborate well with the experimental findings.
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Affiliation(s)
- Partha Samanta
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. HomiBhabha Road, Pashan, Pune, 411008, India
| | - Subhajit Dutta
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. HomiBhabha Road, Pashan, Pune, 411008, India
| | - Sumanta Let
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. HomiBhabha Road, Pashan, Pune, 411008, India
| | - Arunabha Sen
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. HomiBhabha Road, Pashan, Pune, 411008, India
| | - Mandar M Shirolkar
- Symbiosis Center for Nanoscience and Nanotechnology (SCNN), Symbiosis International (Deemed University) (SIU) Lavale, Pune, 412115, Maharashtra, India
| | - Sujit K Ghosh
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. HomiBhabha Road, Pashan, Pune, 411008, India
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Ratvijitvech T. Fe-Immobilised Catechol-Based Hypercrosslinked Polymer as Heterogeneous Fenton Catalyst for Degradation of Methylene Blue in Water. Polymers (Basel) 2022; 14:2749. [PMID: 35808793 PMCID: PMC9269043 DOI: 10.3390/polym14132749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/24/2022] [Accepted: 06/29/2022] [Indexed: 02/01/2023] Open
Abstract
Clean water is one of the sustainable development goals. Organic dye is one of the water pollutants affecting water quality. Hence, the conversion of dyes to safer species is crucial for water treatment. The Fenton reaction using Fe as a catalyst is a promising process. However, homogeneous catalysts are normally sensitive, difficult to separate, and burdensome to reuse. Therefore, a catechol-based hypercrosslinked polymer (catechol-HCP) was developed as an inexpensive solid support for Fe (catechol-HCP-Fe) and applied as a heterogenous Fenton catalyst. The good interaction of the catechol moiety with Fe, as well as the porous structure, simple preparation, low cost, and high stability of catechol-HCP, make it beneficial for Fe-loading in the polymer and Fenton reaction utilisation. The catechol-HCP-Fe demonstrated good catalytic activity for methylene blue (MB) degradation in a neutral pH. Complete decolouration of 100 ppm MB could be observed within 25 min. The rate of reaction was influenced by H2O2 concentration, polymer dose, MB concentration, pH, and temperature. The catechol-HCP-Fe could be reused for at least four cycles. The dominant reactive species of the reaction was considered to be singlet oxygen (1O2), and the plausible mechanism of the reaction was proposed.
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15
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Wang X, Yang S, Zhang H, Xu X, Wood CD, Lipiński W. Amine infused hydrogel-based CO2 gas storage technology for CO2 hydrate-based cold thermal energy storage. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Prince L, Guggenberger P, Santini E, Kleitz F, Woodward RT. Metal-Free Hyper-Cross-Linked Polymers from Benzyl Methyl Ethers: A Route to Polymerization Catalyst Recycling. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucas Prince
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Patrick Guggenberger
- Department of Inorganic Chemistry—Functional Materials, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Elena Santini
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Freddy Kleitz
- Department of Inorganic Chemistry—Functional Materials, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Robert T. Woodward
- Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
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17
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Golubev G, Bakhtin D, Makaev S, Borisov I, Volkov A. Hybrid Microporous Polymeric Materials with Outstanding Permeability and Increased Gas Transport Stability: PTMSP Aging Prevention by Sorption of the Polymerization Catalyst on HCPS. Polymers (Basel) 2021; 13:1922. [PMID: 34207865 DOI: 10.3390/polym13121922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 11/17/2022] Open
Abstract
The influence of hyper-crosslinked polystyrene (HCPS) MacronetTM MN200 on the gas transport properties and aging of the highly permeable glassy polymer poly(1-trimethylsilyl-1-propyne) (PTMSP) was studied and analyzed in detail. The gas transport characteristics of dense PTMSP membranes containing 0-10.0 wt % HCPS were studied. It was shown that the introduction of a small amount of HCPS into the PTMSP matrix led to a 50-60% increase of the permeability coefficients of the material for light gases (N2, O2, CO2) and slowed down the deterioration of polymer transport properties over time. The lowest reduction in gas permeability coefficients (50-57%) was found for PTMSP containing HCPS 5.0 wt % after annealing at 100 °C for 300 h. It was found that HCPS sorbed residues of tantalum-based polymerization catalyst from PTMSP. In order to investigate the influence of catalysts on transport and physical properties of PTMSP, we purified the latter from the polymerization catalyst by addition of 5 wt % HCPS into polymer/chloroform solution. It was shown that sorption on HCPS allowed for almost complete removal of tantalum compounds from PTMSP. The membrane made of PTMSP purified by HCPS demonstrated more stable transport characteristics compared to the membrane made of the initial polymer. HCPS has a complex effect on the aging process of PTMSP. The introduction of HCPS into the polymer matrix not only slowed down the physical aging of PTMSP, but also reduced chemical aging due to removal of active reagents.
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Affiliation(s)
- Simon Bilodeau
- Laval University Department of Chemistry G1V 0A6 Quebec City Canada
| | - Justyna Florek
- University of Vienna Department of Inorganic Chemistry – Functional Materials Faculty of Chemistry Währinger Straße 42 1090 Vienna Austria
| | - Freddy Kleitz
- University of Vienna Department of Inorganic Chemistry – Functional Materials Faculty of Chemistry Währinger Straße 42 1090 Vienna Austria
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Sattari A, Ramazani A, Aghahosseini H, Aroua MK. The application of polymer containing materials in CO2 capturing via absorption and adsorption methods. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101526] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Khotina IA, Kushakova NS, Kharitonova VG, Kupriyanova DV, Babich SA, Kovalev AI. Second generation phenylene dendrimer, 1,3,5-tris[4-(3,5-diphenylphenyl)phenyl]benzene, as a precursor of a new carbon material. Mendeleev Communications 2021; 31:397-399. [DOI: 10.1016/j.mencom.2021.05.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Khotina IA, Kushakova NS, Kharitonova VG, Kupriyanova DV, Babich SA, Kovalev AI. Second generation phenylene dendrimer, 1,3,5-tris[4-(3,5-diphenylphenyl)phenyl]benzene, as a precursor of a new carbon material. Mendeleev Communications 2021. [DOI: 10.1016/j.mencom.2021.04.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Schukraft GEM, Woodward RT, Kumar S, Sachs M, Eslava S, Petit C. Hypercrosslinked Polymers as a Photocatalytic Platform for Visible-Light-Driven CO 2 Photoreduction Using H 2 O. ChemSusChem 2021; 14:1720-1727. [PMID: 33428301 PMCID: PMC8048809 DOI: 10.1002/cssc.202002824] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/17/2020] [Indexed: 06/02/2023]
Abstract
The design of robust, high-performance photocatalysts is key for the success of solar fuel production by CO2 conversion. In this study, hypercrosslinked polymer (HCP) photocatalysts have been developed for the selective reduction of CO2 to CO, combining excellent CO2 sorption capacities, good general stabilities, and low production costs. HCPs are active photocatalysts in the visible light range, significantly outperforming the benchmark material, TiO2 P25, using only sacrificial H2 O. It is hypothesized that superior H2 O adsorption capacities facilitate access to photoactive sites, improving photocatalytic conversion rates when compared to sacrificial H2 . These polymers are an intriguing set of organic photocatalysts, displaying no long-range order or extended π-conjugation. The as-synthesized networks are the sole photocatalytic component, requiring no added cocatalyst doping or photosensitizer, representing a highly versatile and exciting platform for solar-energy conversion.
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Affiliation(s)
- Giulia E. M. Schukraft
- Barrer CentreDepartment of Chemical EngineeringSouth Kensington CampusImperial College LondonLondonSW7 2AZUK
| | - Robert T. Woodward
- Barrer CentreDepartment of Chemical EngineeringSouth Kensington CampusImperial College LondonLondonSW7 2AZUK
- Current address: Institute of Materials Chemistry and Research, Faculty of ChemistryUniversity of ViennaWähringer Straße 421090ViennaAustria
| | - Santosh Kumar
- Department of Chemical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Michael Sachs
- Department of ChemistryWhite City CampusImperial College LondonLondonW12 0BZUK
| | - Salvador Eslava
- Department of Chemical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Camille Petit
- Barrer CentreDepartment of Chemical EngineeringSouth Kensington CampusImperial College LondonLondonSW7 2AZUK
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James AM, Reynolds J, Reed DG, Styring P, Dawson R. A Pressure Swing Approach to Selective CO 2 Sequestration Using Functionalized Hypercrosslinked Polymers. Materials (Basel) 2021; 14:ma14071605. [PMID: 33806093 PMCID: PMC8036798 DOI: 10.3390/ma14071605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/17/2022]
Abstract
Functionalized hypercrosslinked polymers (HCPs) with surface areas between 213 and 1124 m2/g based on a range of monomers containing different chemical moieties were evaluated for CO2 capture using a pressure swing adsorption (PSA) methodology under humid conditions and elevated temperatures. The networks demonstrated rapid CO2 uptake reaching maximum uptakes in under 60 s. The most promising networks demonstrating the best selectivity and highest uptakes were applied to a pressure swing setup using simulated flue gas streams. The carbazole, triphenylmethanol and triphenylamine networks were found to be capable of converting a dilute CO2 stream (>20%) into a concentrated stream (>85%) after only two pressure swing cycles from 20 bar (adsorption) to 1 bar (desorption). This work demonstrates the ease with which readily synthesized functional porous materials can be successfully applied to a pressure swing methodology and used to separate CO2 from N2 from industrially applicable simulated gas streams under more realistic conditions.
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Affiliation(s)
- Alex M. James
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, UK; (A.M.J.); (J.R.)
| | - Jake Reynolds
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, UK; (A.M.J.); (J.R.)
| | - Daniel G. Reed
- Department of Chemical and Biological Engineering, University of Sheffield, Mappin Street, Sheffield S1 3DJ, UK; (D.G.R.); (P.S.)
| | - Peter Styring
- Department of Chemical and Biological Engineering, University of Sheffield, Mappin Street, Sheffield S1 3DJ, UK; (D.G.R.); (P.S.)
| | - Robert Dawson
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, UK; (A.M.J.); (J.R.)
- Correspondence: ; Tel.: +44-114-222-9357
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Rodríguez-jardón L, López-gonzález M, Iglesias M, Maya EM. Effect of porous organic polymers in gas separation properties of polycarbonate based mixed matrix membranes. J Memb Sci 2021; 619:118795. [DOI: 10.1016/j.memsci.2020.118795] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Bai J, Ma X, Gong C, Chen Y, Yan H, Wang K, Wang J. A novel amidoxime functionalized porous resins for rapidly selective uranium uptake from solution. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114443] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Yuan S, Feng L, He A, Liu L, Liu B, Chen Y, Li X. Triazine-functionalized highly ordered hierarchically porous organic polymer with high CO2 uptake capacity and catalytic activity for microwave-assisted Knoevenagel condensation reaction. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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27
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Zhu J, Yuan S, Wang J, Zhang Y, Tian M, Van der Bruggen B. Microporous organic polymer-based membranes for ultrafast molecular separations. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101308] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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28
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Halder M, Bhanja P, Islam MM, Chatterjee S, Khan A, Bhaumik A, Islam SM. Porous organic polymer as an efficient organocatalyst for the synthesis of biofuel ethyl levulinate. Molecular Catalysis 2020. [DOI: 10.1016/j.mcat.2020.111119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Markova ME, Gavrilenko AV, Stepacheva AA, Matveeva VG, Sulman MG, Panfilov VI, Sulman EM. Ru-doped transition metal catalysts for liquid-phase Fischer–Tropsch synthesis. Reac Kinet Mech Cat 2020; 130:813-823. [DOI: 10.1007/s11144-020-01800-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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31
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Suo X, Cui X, Yang L, Xu N, Huang Y, He Y, Dai S, Xing H. Synthesis of Ionic Ultramicroporous Polymers for Selective Separation of Acetylene from Ethylene. Adv Mater 2020; 32:e1907601. [PMID: 32529690 DOI: 10.1002/adma.201907601] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 05/05/2020] [Indexed: 06/11/2023]
Abstract
The design of highly stable and efficient porous materials is essential for developing breakthrough hydrocarbon separation methods based on physisorption to replace currently used energy-intensive distillation/absorption technologies. Efforts to develop advanced porous materials such as zeolites, coordination frameworks, and organic polymers have met with limited success. Here, a new class of ionic ultramicroporous polymers (IUPs) with high-density inorganic anions and narrowly distributed ultramicroporosity is reported, which are synthesized by a facile free-radical polymerization using branched and amphiphilic ionic compounds as reactive monomers. A covalent and ionic dual-crosslinking strategy is proposed to manipulate the pore structure of amorphous polymers at the ultramicroporous scale. The IUPs exhibit exceptional selectivity (286.1-474.4) for separating acetylene from ethylene along with high thermal and water stability, collaboratively demonstrated by gas adsorption isotherms and experimental breakthrough curves. Modeling studies unveil the specific binding sites for acetylene capture as well as the interconnected ultramicroporosity for size sieving. The porosity-engineering protocol used in this work can also be extended to the design of other ultramicroporous materials for the challenging separation of other key gas constituents.
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Affiliation(s)
- Xian Suo
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, China
| | - Xili Cui
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, China
| | - Lifeng Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Nan Xu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yuqi Huang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yi He
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37996, USA
| | - Huabin Xing
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, 324000, China
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32
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James AM, Dawson R. Efficient and Tunable White‐Light Emission Using a Dispersible Porous Polymer. Macromol Rapid Commun 2020; 41:2000176. [DOI: 10.1002/marc.202000176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/01/2020] [Indexed: 11/07/2022]
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33
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Woodward RT. The design of hypercrosslinked polymers from benzyl ether self-condensing compounds and external crosslinkers. Chem Commun (Camb) 2020; 56:4938-4941. [PMID: 32239062 DOI: 10.1039/d0cc01002b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hypercrosslinked polymers were produced via the self-condensation of benzyl ether compounds, providing a one-component route to highly porous networks and significant reductions in catalyst waste compared to conventional routes. These compounds also represent a new class of external crosslinkers, able to impart improved textural properties when compared to standard aliphatic crosslinkers.
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Affiliation(s)
- Robert T Woodward
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, SW7 2AZ London, UK.
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34
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Stepacheva AA, Markova ME, Manaenkov OV, Gavrilenko AV, Sidorov AI, Sulman MG, Kosivtsov YY, Matveeva VG, Sulman EM. Modification of the hypercrosslinked polystyrene surface. New approaches to the synthesis of polymer-stabilized catalysts. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2824-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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35
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Xu Y, Yao Y, Yu H, Shi B, Gao S, Zhang L, Miller AL, Fang JC, Wang X, Huang K. Nanoparticle-Encapsulated Hollow Porous Polymeric Nanosphere Frameworks as Highly Active and Tunable Size-Selective Catalysts. ACS Macro Lett 2019; 8:1263-1267. [PMID: 35651158 DOI: 10.1021/acsmacrolett.9b00490] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We report the use of hyper-cross-linked polymers for synthesis of hollow porous polymeric nanosphere frameworks (HPPNFs) as highly efficient yolk-shell structured catalysts. This approach involves encapsulation of ligand-free metal nanoparticles within the hyper-cross-linked HPPNFs, giving rise to remarkable catalytic activity as well as outstanding reusability toward hydrogenation. By tuning the molecular size of the reactant, we demonstrate intrinsic size selectivity precisely defined by the HPPNF-based catalyst. Because the solvent polarity determines the porosity of the HPPNFs, it provides guidance to design a class of responsive and functional soft materials for use in catalysis technology.
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Affiliation(s)
- Yang Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
| | - Yuxing Yao
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Haitao Yu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
| | - Buyin Shi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
| | - Shengguang Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
| | - Li Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
| | - Abigail L. Miller
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jen-Chun Fang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Xiaoguang Wang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Kun Huang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
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Rankin AGM, Trébosc J, Pourpoint F, Amoureux JP, Lafon O. Recent developments in MAS DNP-NMR of materials. Solid State Nucl Magn Reson 2019; 101:116-143. [PMID: 31189121 DOI: 10.1016/j.ssnmr.2019.05.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 05/03/2023]
Abstract
Solid-state NMR spectroscopy is a powerful technique for the characterization of the atomic-level structure and dynamics of materials. Nevertheless, the use of this technique is often limited by its lack of sensitivity, which can prevent the observation of surfaces, defects or insensitive isotopes. Dynamic Nuclear Polarization (DNP) has been shown to improve by one to three orders of magnitude the sensitivity of NMR experiments on materials under Magic-Angle Spinning (MAS), at static magnetic field B0 ≥ 5 T, conditions allowing for the acquisition of high-resolution spectra. The field of DNP-NMR spectroscopy of materials has undergone a rapid development in the last ten years, spurred notably by the availability of commercial DNP-NMR systems. We provide here an in-depth overview of MAS DNP-NMR studies of materials at high B0 field. After a historical perspective of DNP of materials, we describe the DNP transfers under MAS, the transport of polarization by spin diffusion and the various contributions to the overall sensitivity of DNP-NMR experiments. We discuss the design of tailored polarizing agents and the sample preparation in the case of materials. We present the DNP-NMR hardware and the influence of key experimental parameters, such as microwave power, magnetic field, temperature and MAS frequency. We give an overview of the isotopes that have been detected by this technique, and the NMR methods that have been combined with DNP. Finally, we show how MAS DNP-NMR has been applied to gain new insights into the structure of organic, hybrid and inorganic materials with applications in fields, such as health, energy, catalysis, optoelectronics etc.
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Affiliation(s)
- Andrew G M Rankin
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Univ. Lille, CNRS-FR2638, Fédération Chevreul, F-59000 Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166, Wissembourg, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Institut Universitaire de France, 1 rue Descartes, F-75231, Paris, France.
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Li Y, He Y, Guo F, Zhang S, Liu Y, Lustig WP, Bi S, Williams LJ, Hu J, Li J. NanoPOP: Solution-Processable Fluorescent Porous Organic Polymer for Highly Sensitive, Selective, and Fast Naked Eye Detection of Mercury. ACS Appl Mater Interfaces 2019; 11:27394-27401. [PMID: 31313583 DOI: 10.1021/acsami.9b06488] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fluorescence-based detection is one of the most efficient and cost-effective methods for detecting hazardous, aqueous Hg2+. We designed a fluorescent porous organic polymer (TPA-POP-TSC), with a "fluorophore" backbone and a thiosemicarbazide "receptor" for Hg2+-targeted sensing. Nanometer-sized TPA-POP-TSC spheres (nanoPOP) were synthesized under mini-emulsion conditions and showed excellent solution processability and dispersity in aqueous solution. The nanoPOP sensor exhibits exceptional sensitivity (Ksv = 1.01 × 106 M-1) and outstanding selectivity for Hg2+ over other ions with rapid response and full recyclability. Furthermore, the nanoPOP material can be easily coated onto a paper substrate to afford naked eye-based Hg2+-detecting test strips that are convenient, inexpensive, fast, highly sensitive, and reusable. Our design takes advantage of the efficient and selective capture of Hg2+ by thiosemicarbazides (binding energy = -29.84 kJ mol-1), which facilitates electron transfer from fluorophore to bound receptor, quenching the sensor's fluorescence.
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Affiliation(s)
- Yankai Li
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
- Department of Chemistry and Chemical Biology , Rutgers University , 123 Bevier Road , Piscataway , New Jersey 08854 , United States
| | - Yulong He
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Fangyuan Guo
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Shenping Zhang
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Yanyao Liu
- Department of Chemistry and Chemical Biology , Rutgers University , 123 Bevier Road , Piscataway , New Jersey 08854 , United States
| | - William P Lustig
- Department of Chemistry and Chemical Biology , Rutgers University , 123 Bevier Road , Piscataway , New Jersey 08854 , United States
| | - Shiming Bi
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Lawrence J Williams
- Department of Chemistry and Chemical Biology , Rutgers University , 123 Bevier Road , Piscataway , New Jersey 08854 , United States
| | - Jun Hu
- School of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Jing Li
- Department of Chemistry and Chemical Biology , Rutgers University , 123 Bevier Road , Piscataway , New Jersey 08854 , United States
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38
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Gatti G, Errahali M, Tei L, Mangano E, Brandani S, Cossi M, Marchese L. A Porous Carbon with Excellent Gas Storage Properties from Waste Polystyrene. Nanomaterials (Basel) 2019; 9:nano9050726. [PMID: 31083428 PMCID: PMC6567234 DOI: 10.3390/nano9050726] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 01/19/2023]
Abstract
In this paper, we describe the synthesis and gas adsorption properties of a porous carbonaceous material, obtained from commercial expanded polystyrene. The first step consists of the Friedel-Craft reaction of the dissolved polystyrene chains with a bridging agent to form a highly-crosslinked polymer, with permanent porosity of 0.7 cm 3 /g; then, this polymer is treated with potassium hydroxide at a high temperature to produce a carbon material with a porous volume larger than 1.4 cm 3 / g and a distribution of ultramicro-, micro-, and mesopores. After characterization of the porous carbon and determination of the bulk density, the methane uptake was measured using a volumetric apparatus to pressures up to 30 bar. The equilibrium adsorption isotherm obtained is among the highest ever reported for this kind of material. The interest of this product lies both in its excellent performance and in the virtually costless starting material.
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Affiliation(s)
- Giorgio Gatti
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, I-15121 Alessandria, Italy.
| | - Mina Errahali
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, I-15121 Alessandria, Italy.
| | - Lorenzo Tei
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, I-15121 Alessandria, Italy.
| | - Enzo Mangano
- School of Engineering, Universtity of Edinburgh, Sanderson Building, R. Stevenson Road, EH11 3AZ Edinburgh, UK.
| | - Stefano Brandani
- School of Engineering, Universtity of Edinburgh, Sanderson Building, R. Stevenson Road, EH11 3AZ Edinburgh, UK.
| | - Maurizio Cossi
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, I-15121 Alessandria, Italy.
| | - Leonardo Marchese
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Università del Piemonte Orientale, via T. Michel 11, I-15121 Alessandria, Italy.
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39
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Fu Z, Mohamed IM, Li J, Liu C. Novel adsorbents derived from recycled waste polystyrene via cross-linking reaction for enhanced adsorption capacity and separation selectivity of CO2. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.01.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Duan C, Zou W, Du Z, Li H, Zhang C. Fabrication of micro-mesopores in macroporous poly (formaldehyde-melamine) monoliths via reaction-induced phase separation in high internal phase emulsion template. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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41
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Sanz-Pérez E, Rodríguez-Jardón L, Arencibia A, Sanz R, Iglesias M, Maya E. Bromine pre-functionalized porous polyphenylenes: New platforms for one-step grafting and applications in reversible CO2 capture. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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42
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Luo X, Shi J, Zhao H, Ma C, Hu D, Zhang H, Shen Q, Sun N, Wei W. Biased adsorption of ethane over ethylene on low-cost hyper-crosslinked polymers. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.12.061] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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43
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Hou R, Smith SJD, Wood CD, Mulder RJ, Lau CH, Wang H, Hill MR. Solvation Effects on the Permeation and Aging Performance of PIM-1-Based MMMs for Gas Separation. ACS Appl Mater Interfaces 2019; 11:6502-6511. [PMID: 30653301 DOI: 10.1021/acsami.8b19207] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Membranes are particularly attractive for lowering the energy intensity of separations as they eliminate phase changes. While many tantalizing polymers are known, limitations in selectivity and stability slightly preclude further development. Mixed-matrix membranes may address these shortcomings. Key to their realization is the intimate mixing between the polymer and the additive to eliminate nonselective transport, improve selectivity, and resist physical aging. Polymers of intrinsic microporosity (PIMs) have inherently promising gas transport properties. Here, we show that porous additives can improve transport and resist aging in PIM-1. We develop a simple, low-cost, and scalable hyper-cross-linked polymer (poly-dichloroxylene, pDCX), which was hydroxylated to form an intimate mixture with the polar PIM-1. Solvent variation allowed control of physical aging rates and improved selectivity for smaller gases. This detailed study has allowed many interactions within mixed matrix membranes to be directly elucidated and presents a practical means to stabilize porous polymers for separation applications.
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Affiliation(s)
- Rujing Hou
- Department of Chemical Engineering , Monash University , Clayton , Victoria 3169 , Australia
| | | | - Colin D Wood
- CSIRO, Australian Resources Research Centre , Kensington , Washington 6152 , United States
| | - Roger J Mulder
- CSIRO , Bag 10 , Clayton South , Victoria 3169 , Australia
| | - Cher Hon Lau
- School of Engineering , University of Edinburgh , Robert Stevenson Road , Edinburgh EH93FB , U.K
| | - Huanting Wang
- Department of Chemical Engineering , Monash University , Clayton , Victoria 3169 , Australia
| | - Matthew R Hill
- Department of Chemical Engineering , Monash University , Clayton , Victoria 3169 , Australia
- CSIRO , Bag 10 , Clayton South , Victoria 3169 , Australia
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44
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Su P, Zhang X, Xu Z, Zhang G, Shen C, Meng Q. Amino-functionalized hypercrosslinked polymers for highly selective anionic dye removal and CO2/N2 separation. NEW J CHEM 2019. [DOI: 10.1039/c9nj02847a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Recently, great improvements have been achieved in the fabrication of adsorbents.
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Affiliation(s)
- Pengcheng Su
- Institute of Oceanic and Environmental Chemical Engineering
- and State Key Lab Breeding Base of Green Chemical Synthesis Technology
- Zhejiang University of Technology
- 310014 Hangzhou
- P. R. China
| | - Xu Zhang
- Institute of Oceanic and Environmental Chemical Engineering
- and State Key Lab Breeding Base of Green Chemical Synthesis Technology
- Zhejiang University of Technology
- 310014 Hangzhou
- P. R. China
| | - Zehai Xu
- Institute of Oceanic and Environmental Chemical Engineering
- and State Key Lab Breeding Base of Green Chemical Synthesis Technology
- Zhejiang University of Technology
- 310014 Hangzhou
- P. R. China
| | - Guoliang Zhang
- Institute of Oceanic and Environmental Chemical Engineering
- and State Key Lab Breeding Base of Green Chemical Synthesis Technology
- Zhejiang University of Technology
- 310014 Hangzhou
- P. R. China
| | - Chong Shen
- College of Chemical and Biological Engineering, and State Key Laboratory of Chemical Engineering
- Zhejiang University
- 310027 Hangzhou
- P. R. China
| | - Qin Meng
- College of Chemical and Biological Engineering, and State Key Laboratory of Chemical Engineering
- Zhejiang University
- 310027 Hangzhou
- P. R. China
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45
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Valverde-González A, Marchal G, Maya EM, Iglesias M. A step forward in solvent knitting strategies: ruthenium and gold phosphine complex polymerization results in effective heterogenized catalysts. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00776h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A knitting strategy has been applied to obtain metal–phosphine porous organic polymers (Kphos(M)), resulting in effective heterogenized catalysts for different reactions.
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Affiliation(s)
| | | | - Eva M. Maya
- Instituto de Ciencia de Materiales de Madrid
- CSIC
- Cantoblanco
- Spain
| | - Marta Iglesias
- Instituto de Ciencia de Materiales de Madrid
- CSIC
- Cantoblanco
- Spain
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46
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Zhang S, Li Y, Shi C, Guo F, He C, Cao Z, Hu J, Cui C, Liu H. Induced-fit adsorption of diol-based porous organic polymers for tetracycline removal. Chemosphere 2018; 212:937-945. [PMID: 30286550 DOI: 10.1016/j.chemosphere.2018.09.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 08/24/2018] [Accepted: 09/01/2018] [Indexed: 06/08/2023]
Abstract
Adsorption is recognized as one of the most efficient approaches for antibiotics removal from water. Inspired by the enzyme-substrate interaction model, we proposed induced-fit adsorption (IFA) model, and rationally designed and fabricated diol-based porous organic polymers (POPs) as adsorbents for tetracycline (TC) removal. For 2,3-naphthalenediol-based POP (NTdiol-POP), the preferable geometry of diol-groups contributed to the high binding energy with TC species and flexible methylene linkages between neighboring rigid naphthalene rings gave rise to precisely matching between TC species and adsorbents, that is, the induced-fit conformation change. As a result, NTdiol-POP exhibited a high saturated adsorption capacity of 155.8 mg g-1. More importantly, NTdiol-POP exhibited excellent TC removal efficiencies in both concentrated solution (96% for 4 p.p.m) and trace level solution (97% for 250 p.p.b).
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Affiliation(s)
| | - Yankai Li
- School of Chemistry and Molecular Engineering, China
| | - Chunhong Shi
- Shanghai Songjiang Institute for Food and Drug Control, 28 Middle Zhongshan Road, Shanghai, 201600, China
| | - Fangyuan Guo
- School of Chemistry and Molecular Engineering, China
| | - Congze He
- School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Zan Cao
- Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, China
| | - Jun Hu
- School of Chemistry and Molecular Engineering, China.
| | - Changzheng Cui
- Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, China.
| | - Honglai Liu
- School of Chemistry and Molecular Engineering, China
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47
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Affiliation(s)
- Xiao Y. Luo
- Dept. of Chemical and Biological Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education; Zhejiang University; Hangzhou China
| | - Xiao Y. Lv
- Dept. of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou China
| | - Gui L. Shi
- Dept. of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou China
| | - Qin Meng
- Dept. of Chemical and Biological Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education; Zhejiang University; Hangzhou China
| | - Hao R. Li
- Dept. of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou China
| | - Cong M. Wang
- Dept. of Chemical and Biological Engineering, Key Laboratory of Biomass Chemical Engineering of Ministry of Education; Zhejiang University; Hangzhou China
- Dept. of Chemistry, ZJU-NHU United R&D Center; Zhejiang University; Hangzhou China
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48
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Bhavsar RS, Mitra T, Adams DJ, Cooper AI, Budd PM. Ultrahigh-permeance PIM-1 based thin film nanocomposite membranes on PAN supports for CO2 separation. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.07.089] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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49
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Trandafir MM, Pop L, Hӑdade ND, Hristea I, Teodorescu CM, Krumeich F, van Bokhoven JA, Grosu I, Parvulescu VI. Spirobifluorene‐based Porous Organic Polymers as Efficient Porous Supports for Pd and Pt for Selective Hydrogenation. ChemCatChem 2018. [DOI: 10.1002/cctc.201801247] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mihaela Mirela Trandafir
- Biochemistry and Catalysis Department of Organic ChemistryUniversity of Bucharest Bucharest 030016 Romania
| | - Lidia Pop
- Department of Chemistry Faculty of Chemistry and Chemical EngineeringBabes-Bolyai University Cluj-Napoca 400028 Romania
| | - Niculina D. Hӑdade
- Department of Chemistry Faculty of Chemistry and Chemical EngineeringBabes-Bolyai University Cluj-Napoca 400028 Romania
| | - Ioana Hristea
- Department of Surfaces and InterfacesNational Institute of Materials Physics Magurele-Ilfov 077125 Romania
| | - Cristian Mihail Teodorescu
- Department of Surfaces and InterfacesNational Institute of Materials Physics Magurele-Ilfov 077125 Romania
| | - Frank Krumeich
- Institute for Chemical and BioengineeringETH Zurich HCI D 130 Zurich 8093 Switzerland
- Paul Scherrer Institute Villigen 5323 Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and BioengineeringETH Zurich HCI D 130 Zurich 8093 Switzerland
- Paul Scherrer Institute Villigen 5323 Switzerland
| | - Ion Grosu
- Department of Chemistry Faculty of Chemistry and Chemical EngineeringBabes-Bolyai University Cluj-Napoca 400028 Romania
| | - Vasile I. Parvulescu
- Biochemistry and Catalysis Department of Organic ChemistryUniversity of Bucharest Bucharest 030016 Romania
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50
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Abstract
A diverse range of alkali/amine infused hydrogels (AIHs) were generated by incorporating the liquids into a hydrogel particle for carbon capture application. As a consequence, the CO2 uptake was significantly enhanced owing to the increased contact area. This AIHs technique was highly tunable as it could be applicable to varying species of alkali chemicals and it was found that their molecular structure and architectures could impact the CO2 uptake. Compared to stirred bulk alkali/amine solutions, the CO2 absorption capacity of AIHs was increased by 400% within 30 min with a low hydrogel loading (10 w/w%). In addition, the recyclability of various AIHs was assessed and was found to be extremely encouraging. The effect of salinity on the performance of AIHs was also investigated and high salinity was found to have a minimal effect on CO2 absorption. Most importantly, the preparation of AIHs is fast and straightforward with few wastes and byproducts formed in the preparation process. In all, extensive investigations were presented and the AIHs were found to be a highly tunable and effective approach to enhance CO2 capture with liquid alkali/amines.
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Affiliation(s)
- Xingguang Xu
- CSIRO, Energy , Australian Resources Research Centre , Kensington , Western Australia 6151 , Australia
| | - Colin D Wood
- CSIRO, Energy , Australian Resources Research Centre , Kensington , Western Australia 6151 , Australia
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