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Ghosh S, Kumar S, Suneesh S, Bhambri H, Mandal SK, Ghosh S, Chowdhury R, Addy PS. One-Pot Synthesis of Vinylogous Cyano Aminoaryls (VinCAs) as Benzenic Fluorophores: Tailoring Diverse Emission Colors for White Light Emitting Materials and Cell Imaging. J Org Chem 2024; 89:9303-9312. [PMID: 38752740 DOI: 10.1021/acs.joc.4c00320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Donor-acceptor-based organic small molecules with an electronic push-pull effect can demonstrate intramolecular charge transfer to show interesting photoluminescence properties. This is an essential criterion for designing fluorogenic probes for cell imaging studies and the development of organic light-emitting diodes. Now, to design such optical materials sometimes it is necessary to tune the band gap by controlling the energies of the highest occupied molecular orbital and lowest unoccupied molecular orbital. Typically, the band gaps could be modulated by installing unsaturated handles between electron-rich donors and electron-deficient acceptors. However, these methods are often synthetically and economically challenging due to the involvement of expensive catalysts and difficult reaction setups. In our present study, we show a straightforward, cost-effective method for obtaining a series of donor-acceptor-type Vinylogous Cyano Aminoaryls (VinCAs) with diverse emission colors. Further studies reveal that these VinCAs can serve as effective cell imaging agents, showcasing potential use in chemical biology. Additionally, these molecules could be further used to generate white light emission (WLE), showing their potential utility in advanced lighting technologies.
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Affiliation(s)
- Saurajit Ghosh
- Birla Institute of Technology and Science Pilani, Pilani Campus, Department of Chemistry, Pilani, Rajasthan 333031, India
| | - Shubham Kumar
- Birla Institute of Technology and Science Pilani, Pilani Campus, Department of Chemistry, Pilani, Rajasthan 333031, India
| | - Swathi Suneesh
- Birla Institute of Technology and Science Pilani, Pilani Campus, Department of Chemical Engineering, Pilani, Rajasthan 333031, India
| | - Himanshi Bhambri
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Mohali, Punjab 140306, India
| | - Sanjay K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Mohali, Punjab 140306, India
| | - Sarbani Ghosh
- Birla Institute of Technology and Science Pilani, Pilani Campus, Department of Chemical Engineering, Pilani, Rajasthan 333031, India
| | - Rajdeep Chowdhury
- Birla Institute of Technology and Science Pilani, Pilani Campus, Department of Biological Sciences, Pilani, Rajasthan 333031, India
| | - Partha Sarathi Addy
- Birla Institute of Technology and Science Pilani, Pilani Campus, Department of Chemistry, Pilani, Rajasthan 333031, India
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Zeng Z, Ma F, Wang S, Wen J, Jiang X, Li G, Tong Y, Liu X, Jiang J. Zeolitic Pickering Emulsifier with Intrinsic Amphiphilicity. J Am Chem Soc 2024; 146:9851-9859. [PMID: 38530323 DOI: 10.1021/jacs.3c14712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
The formation of oil-in-water Pickering emulsions stabilized by lamellar zeolite MWW (International Zeolite Association, three-letters code) emulsifier without surface grafting is investigated. The crucial emulsification factors are the oligolayer morphology and amphiphilicity developed upon acidic treatment (NH4+ exchange/calcination, HNO3 treatment). In contrast with the readily available/abundant hydrophilic ≡Si-OH group in layer MWW, the lipophilicity generated by strong acid sites is another key to the success of emulsification. Hydrocarbon-strong acid site interaction is long known in petrochemistry and superacid research. However, to the best of our knowledge, this interaction was first introduced to gain lipophilicity in emulsion formation. Finally, the Pd-loaded acidic form of the MWW zeolite successfully stabilized the toluene/H2O emulsion system. The biphasic interfacial nitroarene hydrogenation demonstrated excellent catalytic performance. Overall, this work provided not only a new kind of intrinsic solid to emulsify the organic-aqueous biphase system but also a new mechanism to generate lipophilicity. Both are important for the applications and designs of Pickering emulsion materials.
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Affiliation(s)
- Zhifeng Zeng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Fei Ma
- Jiangxi Provincial Key Laboratory of Low-Carbon Solid Waste Recycling Technology, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Shuangjia Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Jiali Wen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiangqiong Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Gaoyu Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Yan Tong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiaolong Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Jiuxing Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, School of Materials, Sun Yat-sen University, Guangzhou 510006, China
- Jiangxi Provincial Key Laboratory of Low-Carbon Solid Waste Recycling Technology, School of Geography and Environmental Engineering, Gannan Normal University, Ganzhou 341000, China
- China Guangdong Provincial Key Laboratory of Optical Chemicals, XinHuaYue Group, Maoming 525000, China
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Li Z, Shi Y, Ding Y, Xiong D, Li Z, Wang H, Qiu J, Xuan X, Wang J. Zr-Based MOF-Stabilized CO 2-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38307089 DOI: 10.1021/acs.langmuir.3c03564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
A Pickering emulsion is a natural microreactor for interfacial catalysis in which an emulsifier is critical. Recently, a metal-organic framework (MOF) has attracted attention to emulsify water-organic mixtures for constructing a Pickering emulsion. However, a few stimuli-responsive Pickering emulsions based on MOFs have been reported, and the MOF emulsifiers cannot be regenerated at room temperature. Herein, the Zr-MOF with a rodlike morphology is synthesized using ionic liquid as a modulator and then modified with n-(trimethoxysilylpropyl)imidazole (C3im) to prepare a series of functionalized Zr-MOFs (MOF-C3im). It is found that MOF-C3im is an excellent emulsifier to construct stable and CO2-responsive Pickering emulsions even at low content (>0.20 wt %). Notably, the emulsification and demulsification of the emulsions can be easily and reversibly switched by bubbling of CO2 and N2 alternatively at room temperature because CO2 and imidazole molecules anchored on the Zr-MOF underwent a reversible acid-base reaction, resulting in an obvious change in the wettability of the emulsifier. As a proof of concept, the reduction reactions of nitrobenzene have been successfully carried out in these Pickering emulsions, demonstrating the efficient integration as a microreactor for chemical reaction, product separation, and emulsifier recycling under ambient conditions. This strategy provides an innovative option to develop stimulus-responsive Pickering emulsions for sustainable chemical processes.
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Affiliation(s)
- Zhuoxue Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yunlei Shi
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yimian Ding
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Dazhen Xiong
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Zhiyong Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Huiyong Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jikuan Qiu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xiaopeng Xuan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jianji Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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Pei X, Song W. CO 2-Triggered Hierarchical-Pore UiO-66-Based Pickering Emulsions for Efficient and Recyclable Suzuki-Miyaura Cross-Coupling in Biphasic Systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15046-15054. [PMID: 37812683 DOI: 10.1021/acs.langmuir.3c02011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Hierarchical-pore metal-organic frameworks (H-MOFs) are considered to be emerging stabilizers for Pickering emulsion formation because of their hierarchically arranged pores, tailorable structures, and ultrahigh surface areas. However, stimulus-triggered Pickering emulsions built by H-MOFs have been seldom presented to date despite their great significance in diverse applications. Herein, by grafting Pd(OAc)2 on the hierarchical-pore zirconium MOF UiO-66, namely, H-UiO-66, with the aid of 1-alkyl-3-methylimidazolium 2-cyanopyrrolide salts ([CnMIM][2-CN-Pyr], n = 4, 6, and 8), a series of Pd(OAc)2-[CnMIM][2-CN-Pyr]@H-UiO-66 have been developed and utilized as emulsifiers for constructing CO2-switching Pickering emulsions. It was found that Pd(OAc)2-[CnMIM][2-CN-Pyr]@H-UiO-66 was able to stabilize the n-hexane-water mixture to form a Pickering emulsion even at an amount of 0.5 wt %. Upon alternate addition of CO2 and N2 at normal pressure, Pickering emulsions could be smartly converted between demulsification and re-emulsification. Through combining varieties of spectroscopic techniques, the mechanism of the switchable phase transformation lay in the acid-base reaction of ionic liquids with CO2 on H-UiO-66 and the creation of more hydrophilic salts, which reduced the wettability of the emulsifier and destabilized the emulsion. As an example of application, the stimulus-triggered Pickering emulsion was employed as a palladium-catalyzed Suzuki-Miyaura cross-coupling microreactor to achieve the combination of chemical reactions, isolation of products, and recovery of catalysts.
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Affiliation(s)
- Xiaoyan Pei
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, P. R. China
| | - Wangyue Song
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, Henan 464000, P. R. China
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Lee J, Lee J, Kim JY, Kim M. Covalent connections between metal-organic frameworks and polymers including covalent organic frameworks. Chem Soc Rev 2023; 52:6379-6416. [PMID: 37667818 DOI: 10.1039/d3cs00302g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
Hybrid composite materials combining metal-organic frameworks (MOFs) and polymers have emerged as a versatile platform for a broad range of applications. The crystalline, porous nature of MOFs and the flexibility and processability of polymers are synergistically integrated in MOF-polymer composite materials. Covalent bonds, which form between two distinct materials, have been extensively studied as a means of creating strong molecular connections to facilitate the dispersion of "hard" MOF particles in "soft" polymers. Numerous organic transformations have been applied to post-synthetically connect MOFs with polymeric species, resulting in a variety of covalently connected MOF-polymer systems with unique properties that are dependent on the characteristics of the MOFs, polymers, and connection modes. In this review, we provide a comprehensive overview of the development and strategies involved in preparing covalently connected MOFs and polymers, including recently developed MOF-covalent organic framework composites. The covalent bonds, grafting strategies, types of MOFs, and polymer backbones are summarized and categorized, along with their respective applications. We highlight how this knowledge can serve as a basis for preparing macromolecular composites with advanced functionality.
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Affiliation(s)
- Jonghyeon Lee
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea.
| | - Jooyeon Lee
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea.
| | - Jin Yeong Kim
- Department of Chemistry Education, Seoul National University, Seoul 08826, Republic of Korea.
| | - Min Kim
- Department of Chemistry, Chungbuk National University, Cheongju 28644, Republic of Korea.
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A “smart-sensing” bactericidal protein-based Pickering emulsion. J FOOD ENG 2023. [DOI: 10.1016/j.jfoodeng.2023.111491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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Wang D, Li T. Toward MOF@Polymer Core-Shell Particles: Design Principles and Potential Applications. Acc Chem Res 2023; 56:462-474. [PMID: 36745822 DOI: 10.1021/acs.accounts.2c00695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
ConspectusCompositing MOFs with polymers brings out the best properties of both worlds. The solubility and excellent mechanical properties of polymers endow the brittle, powdery MOFs with enhanced processability, thereby enriching their functions as solid sorbents, filters, membranes, catalysts, drug delivery vehicles, and so forth. While most MOF-polymer composites are random mixtures of two materials with little control over their fine structures, MOF@polymer core-shell particles have recently emerged as a new platform for precise composite design. The well-defined polymer coating can keep the rich pore characteristics of the MOF intact while furnishing the MOF with new properties such as improved dispersibility in various media, tunable surface energy, enhanced chemical stability, and regulated guest diffusion. Nevertheless, the structural and chemical complexity of MOFs poses a grand challenge to the development of a generalizable and feasible strategy for constructing MOF@polymer. Examples in the literature that showcase the presence of a well-defined polymer shell on the MOF with fully reserved porosity are rare. Moreover, methods for coating MOFs with condensation polymers (e.g., polyimide, polysulfone) are severely underexplored, despite their clear potential as membrane materials. In this Account, we present our group's effort over the past 4 years on the synthesis and applications of MOF@polymer composites. We first described a highly generalizable surface polymerization method that utilizes the rapid physisorption of a random copolymer (RCP) to carry initiating groups to the MOF surfaces. Subsequent controlled radical polymerization led to the formation of a uniform methacrylate or styrenic polymer on the MOF with tunable thickness and composition. To utilize the properties of condensation polymers, we pioneered the covalent grafting of polyimide (PI) brushes to UiO-66-NH2 surfaces. In addition, to circumvent the need for a covalent anchoring group, we further developed an MOF surface grafting method based on mechanical linkage. Instead of connecting to the ligand, polyimide (PI) oligomer was linked to a functionalized linear polymer physically entangled within an MOF, thus realizing surface grafting with PI. Alternatively, PIs, polysulfone (PSF), and polycarbonate (PC) can also be grafted to various MOF surfaces through a metal-organic nanocapsule (MONC)-mediated method using a combination of electrostatic interaction and coordination bonds. To find a rapid and low-cost surface coating method suitable for commercialization, a new approach called non-solvent-induced surface-aimed deposition (NISAP) was developed. The action of the solvent phase separation drives dianhydrides and polyamines to the MOF surface, thus realizing accelerated polymerization and the rapid formation of a polymer coating on the MOF. Finally, we provided an overview of the unique properties and potential applications of MOF@polymer composites, including improved stability, MMMs, porous liquids (PLs), and immobilizing homogeneous catalysts. We hope that this Account can inspire more researchers to further develop and optimize the synthetic strategies for MOF@polymer and uncover its full application potential.
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Affiliation(s)
- Dongxu Wang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, China 201210
| | - Tao Li
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, China 201210
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Pei X, Liu J, Song W, Xu D, Wang Z, Xie Y. CO 2-Switchable Hierarchically Porous Zirconium-Based MOF-Stabilized Pickering Emulsions for Recyclable Efficient Interfacial Catalysis. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1675. [PMID: 36837307 PMCID: PMC9960431 DOI: 10.3390/ma16041675] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/08/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Stimuli-responsive Pickering emulsions are recently being progressively utilized as advanced catalyzed systems for green and sustainable chemical conversion. Hierarchically porous metal-organic frameworks (H-MOFs) are regarded as promising candidates for the fabrication of Pickering emulsions because of the features of tunable porosity, high specific surface area and structure diversity. However, CO2-switchable Pickering emulsions formed by hierarchically porous zirconium-based MOFs have never been seen. In this work, a novel kind of the amine-functionalized hierarchically porous UiO-66-(OH)2 (H-UiO-66-(OH)2) has been developed using a post-synthetic modification of H-UiO-66-(OH)2 by (3-aminopropyl)trimethoxysilane (APTMS), 3-(2-aminoethylamino)propyltrimethoxysilane (AEAPTMS) and 3-[2-(2-aminoethylamino)ethylamino]propyl-trimethoxysilane (AEAEAPTMS), and employed as emulsifiers for the construction of Pickering emulsions. It was found that the functionalized H-UiO-66-(OH)2 could stabilize a mixture of toluene and water to give an emulsion even at 0.25 wt % content. Interestingly, the formed Pickering emulsions could be reversibly transformed between demulsification and re-emulsification with alternate addition or removal of CO2. Spectral investigation indicated that the mechanism of the switching is attributed to the reaction of CO2 with amino silane on the MOF and the generation of hydrophilic salts, leading to a reduction in MOF wettability. Based on this strategy, a highly efficient and controlled Knoevenagel condensation reaction has been gained by using the emulsion as a mini-reactor and the emulsifier as a catalyst, and the coupling of catalysis reaction, product isolation and MOF recyclability has become accessible for a sustainable chemical process.
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Zou S, Zhang H, Wang J. Ultrasound-assisted Pickering Interfacial Catalysis for Transesterification: Optimization of Biodiesel Yield by Response Surface Methodology. J Oleo Sci 2023; 72:233-243. [PMID: 36631108 DOI: 10.5650/jos.ess22340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Recently, Pickering interfacial catalyst (PIC) was widely applied for liquid-liquid reactions, in view of not only intensifying the mass transfer through significant reducing both the drop sizes and the diffusion distance, but also supplying a flexible platform for the immobilization of valuable active sites. However, the restriction of the mobility of catalyst somehow decreases the activity of a catalyst. To obtain a promise reaction efficiency, we firstly report a synergistic method to enhance the biphasic reaction by Pickering emulsion and ultrasound concepts, targeted at efficient production of biodiesel. Response surface methodology based on Box-Behnken design was applied to optimize the reaction conditions, such as composition of catalyst, reaction temperature, ultrasound power, methanol to oil molar ratio and catalyst amount. An over 98% yield of biodiesel could be achieved within 2.5 hours by ultrasound assisted Pickering interfacial catalysis, which is over two times higher than that of ultrasound assisted homogeneous transesterification system. Besides, the ultrasound assisted Pickering emulsion shortened the reaction time by 3.6 fold when compared to mechanical stirring assisted Pickering emulsion system.
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Affiliation(s)
- Siyuan Zou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang Province Key Laboratory of Biofuel, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, College of Chemical Engineering, Zhejiang University of Technology
| | - Hao Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang Province Key Laboratory of Biofuel, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, College of Chemical Engineering, Zhejiang University of Technology
| | - Jianli Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang Province Key Laboratory of Biofuel, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, College of Chemical Engineering, Zhejiang University of Technology
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Campisciano V, Giacalone F, Gruttadauria M. Is a Catalyst Always Needed? The Case of the Knoevenagel Reaction with Malononitrile. ChemCatChem 2022. [DOI: 10.1002/cctc.202200696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vincenzo Campisciano
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies (STEBICEF) INSTM UdR – Palermo University of Palermo Viale delle Scienze, Building 17 90128 Palermo Italy
| | - Francesco Giacalone
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies (STEBICEF) INSTM UdR – Palermo University of Palermo Viale delle Scienze, Building 17 90128 Palermo Italy
| | - Michelangelo Gruttadauria
- Department of Biological Chemical and Pharmaceutical Sciences and Technologies (STEBICEF) INSTM UdR – Palermo University of Palermo Viale delle Scienze, Building 17 90128 Palermo Italy
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Zhao K, Zhang LX, Xu H, Liu YF, Tang B, Bie LJ. Single-ion chelation strategy for synthesis of monodisperse Pd nanoparticles anchored in MOF-808 for highly efficient hydrogenation and cascade reactions. NANOSCALE 2022; 14:10980-10991. [PMID: 35861189 DOI: 10.1039/d2nr02765h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ultrafine Pd nanoparticles are prepared using a single-ion precursor on a MOF-808 carrier. The ligand 2,3-pyrazinedicarboxylic acid (Pza) is dispersed in porous MOF-808 via grafting on formic acid sites, and thus Pd2+ ions are chelated by Pza to form a new single-ion precursor Pd@MOF-808-Pza. Then a Pd-nano@MOF-808-Pza catalyst is prepared by direct reduction of this precursor using NaBH4. Material characterization reveals the homogeneous dispersion of 3-6 nm Pd nanoparticles within the MOF-808 matrix. Pd-nano@MOF-808-Pza exhibits excellent catalytic activity in the hydrogenation of unsaturated nitrogen-containing compounds, and other typical reactions, such as the Knoevenagel condensation, Suzuki/Heck cross-coupling, and hydrogen tandem reactions. In addition, density functional theory (DFT) calculations are carried out to elucidate the chelation of Pd2+ ions by Pza on MOF-808 and propose mechanisms of hydrogenation reactions. This work provides an effective reduction catalyst, and more importantly, a single-ion chelation strategy for design and synthesis of metal supported catalysts.
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Affiliation(s)
- Ke Zhao
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
| | - Le-Xi Zhang
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Heng Xu
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Yi-Fei Liu
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Bo Tang
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
| | - Li-Jian Bie
- School of Materials Science and Engineering, Tianjin Key Lab for Photoelectric Materials and Devices, Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education), National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
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Jiang X, Pan H, Ruan G, Hu H, Huang Y, Chen Z. Wettability tunable metal organic framework functionalized high internal phase emulsion porous monoliths for fast solid-phase extraction and sensitive analysis of hydrophilic heterocyclic amines. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128565. [PMID: 35359099 DOI: 10.1016/j.jhazmat.2022.128565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/09/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Surface wettability greatly influences the adsorptive, catalytic, and diffuse performances of a porous material. To realize the improved adsorption performance to hydrophilic heterocyclic amines (HAs), polymeric high internal phase emulsions (polyHIPEs) that can be tuned from hydrophobic to hydrophilic is synthesized by facilely regulating the amount of metal organic frameworks (MOFs). The water contact angle of the MOFs and polyHIPEs hybrids (MOFs@polyHIPEs) decreases from 133° to 0° as the amount of amide-modified MOFs increases from 0% to 10%. The hydrophilization of divinybenzene (DVB) based polyHIPEs by MOFs hybridization significantly enhances their adsorption performance and enables them to be suitable for the solid phase extraction (SPE) of hydrophilic HAs. Under the optimized conditions, the MOFs@polyHIPEs achieve adsorption capacities ranging from 42.89 to 86.71 µg/g for HAs through the π-π interaction and hydrogen bonding. The adsorption follows the pseudo-second-order kinetic model, and the nitrogen atoms in/on the imidazole ring are identified as the active adsorption sites for hydrogen bonding. This SPE method, along with HPLC-MS detection, provides detection limits of HAs as low as 0.00020-0.00040 ng/mL. This work offers a feasible strategy in tuning the surface wettability of polyHIPEs without post-modification to achieve high-efficiency enrichment and analysis of HAs.
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Affiliation(s)
- Xiangqiong Jiang
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection, College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi 541004, China
| | - Hong Pan
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection, College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi 541004, China
| | - Guihua Ruan
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection, College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi 541004, China.
| | - Haoyun Hu
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection, College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi 541004, China
| | - Yipeng Huang
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection, College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi 541004, China.
| | - Zhengyi Chen
- Pharmacy School, Guilin Medical University, Guangxi 541004, China
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13
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Cheng L, Guo Q, Zhao K, Li YM, Ren H, Ji CY, Li W. AuPd Alloys and Chiral Proline Dual-Functionalized NH2-UiO-66 Catalysts for Tandem Oxidation/Asymmetric Aldol Reactions. Catal Letters 2022. [DOI: 10.1007/s10562-022-04044-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Dedovets D, Li Q, Leclercq L, Nardello‐Rataj V, Leng J, Zhao S, Pera‐Titus M. Multiphase Microreactors Based on Liquid–Liquid and Gas–Liquid Dispersions Stabilized by Colloidal Catalytic Particles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202107537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dmytro Dedovets
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
- Laboratoire du Futur (LOF) UMR 5258, CNRS-Solvay-Universite Bordeaux 1 178 Av Dr Albert Schweitzer 33608 Pessac Cedex France
| | - Qingyuan Li
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
| | - Loïc Leclercq
- Univ Lille CNRS Centrale Lille Univ Artois UMR 8181 UCCS F-59000 Lille France
| | | | - Jacques Leng
- Laboratoire du Futur (LOF) UMR 5258, CNRS-Solvay-Universite Bordeaux 1 178 Av Dr Albert Schweitzer 33608 Pessac Cedex France
| | - Shuangliang Zhao
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical Engineering Guangxi University 530004 Nanning China
| | - Marc Pera‐Titus
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 3966 Jin Du Road, Xin Zhuang Ind Zone 201108 Shanghai China
- Cardiff Catalysis Institute School of Chemistry Cardiff University Main Building, Park Place Cardiff CF10 3AT UK
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15
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Yu H, Wang R, Zhang Z, Qiu S. Yolk-shell smart Pickering nanoreactors for base-free one-pot cascade Knoevenagel-Hydrogenation with high catalytic efficiency in water. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00005a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In present work, Au@Pd nanoparticles, catalytic active centers, were first implanted in amphiphilic hollow vinyl-pyridyl groups-doped periodic mesoporous organosilica (PMO) shells, and we got yolk–shell smart Pickering Au@Pd@Py-PMO nanoreactors. Two...
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16
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Sadgar AL, Deore TS, Hase DV, Jayaram RV. Graphene Oxide Pickering Emulsion – A Novel Reaction Medium for the Synthesis of 2‐Aminothiazole. ChemistrySelect 2021. [DOI: 10.1002/slct.202102808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Amid L. Sadgar
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
| | - Tushar S. Deore
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
| | - Dattatraya V. Hase
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
| | - Radha V. Jayaram
- Department of Chemistry Institute of Chemical Technology Nathalal Parekh Marg, Matunga Mumbai 400019
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17
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Trifunctional covalent triazine and carbonyl based polymer as a catalyst for one-pot multistep organic transformation. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Dedovets D, Li Q, Leclercq L, Nardello-Rataj V, Leng J, Zhao S, Pera-Titus M. Multiphase Microreactors Based on Liquid-Liquid and Gas-Liquid Dispersions Stabilized by Colloidal Catalytic Particles. Angew Chem Int Ed Engl 2021; 61:e202107537. [PMID: 34528366 PMCID: PMC9293096 DOI: 10.1002/anie.202107537] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Indexed: 01/08/2023]
Abstract
Pickering emulsions, foams, bubbles, and marbles are dispersions of two immiscible liquids or of a liquid and a gas stabilized by surface‐active colloidal particles. These systems can be used for engineering liquid–liquid–solid and gas–liquid–solid microreactors for multiphase reactions. They constitute original platforms for reengineering multiphase reactors towards a higher degree of sustainability. This Review provides a systematic overview on the recent progress of liquid–liquid and gas–liquid dispersions stabilized by solid particles as microreactors for engineering eco‐efficient reactions, with emphasis on biobased reagents. Physicochemical driving parameters, challenges, and strategies to (de)stabilize dispersions for product recovery/catalyst recycling are discussed. Advanced concepts such as cascade and continuous flow reactions, compartmentalization of incompatible reagents, and multiscale computational methods for accelerating particle discovery are also addressed.
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Affiliation(s)
- Dmytro Dedovets
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, 3966 Jin Du Road, Xin Zhuang Ind Zone, 201108, Shanghai, China.,Laboratoire du Futur (LOF), UMR 5258, CNRS-Solvay-Universite Bordeaux 1, 178 Av Dr Albert Schweitzer, 33608, Pessac Cedex, France
| | - Qingyuan Li
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, 3966 Jin Du Road, Xin Zhuang Ind Zone, 201108, Shanghai, China
| | - Loïc Leclercq
- Univ Lille, CNRS, Centrale Lille, Univ Artois, UMR 8181 UCCS, F-59000, Lille, France
| | | | - Jacques Leng
- Laboratoire du Futur (LOF), UMR 5258, CNRS-Solvay-Universite Bordeaux 1, 178 Av Dr Albert Schweitzer, 33608, Pessac Cedex, France
| | - Shuangliang Zhao
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, China
| | - Marc Pera-Titus
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, 3966 Jin Du Road, Xin Zhuang Ind Zone, 201108, Shanghai, China.,Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
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19
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Yu S, Lv M, Lu G, Cai C, Jiang J, Cui Z. pH-Responsive Behavior of Pickering Emulsions Stabilized by a Selenium-Containing Surfactant and Alumina Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10683-10691. [PMID: 34448589 DOI: 10.1021/acs.langmuir.1c01179] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Herein, we describe pH-responsive Pickering emulsions stabilized by a sodium carboxylate-derived selenium surfactant (C10-Se-C10·(COONa)2) in combination with positively charged alumina nanoparticles. Unlike other bola-type carboxylate surfactants (e.g., disodium eicosanoate), C10-Se-C10·(COONa)2 is soluble in water with a low Krafft temperature (36.1 °C). The emulsions are sensitive to pH variations, and efficient demulsification can be achieved by a pH trigger. The carboxylic sodium group in the C10-Se-C10·(COONa)2 structure can be reversibly cycled between its anionic and nonionic states (carboxylic acid), resulting in a pH-controlled electrostatic attraction between the surfactant and alumina. The Pickering emulsion can be reversibly switched between "on" (stable) and "off" (unstable) states by pH at least four times. Compared with the emulsions stabilized by specially synthesized stimuli-responsive particles or surfactants, the method reported here is much easier to implement and requires very low concentrations of the surfactant and nanoparticles, with potential applications in the fields of biomedicine, drug delivery, and cosmetics.
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Affiliation(s)
- Shijie Yu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, P. R. China
| | - Miao Lv
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, P. R. China
| | - Guoping Lu
- Chemical Engineering College, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China
| | - Chun Cai
- Chemical Engineering College, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, P. R. China
| | - Jianzhong Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, P. R. China
| | - Zhenggang Cui
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, P. R. China
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20
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Reina A, Dang-Bao T, Guerrero-Ríos I, Gómez M. Palladium and Copper: Advantageous Nanocatalysts for Multi-Step Transformations. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1891. [PMID: 34443727 PMCID: PMC8401531 DOI: 10.3390/nano11081891] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 12/13/2022]
Abstract
Metal nanoparticles have been deeply studied in the last few decades due to their attractive physical and chemical properties, finding a wide range of applications in several fields. Among them, well-defined nano-structures can combine the main advantages of heterogeneous and homogeneous catalysts. Especially, catalyzed multi-step processes for the production of added-value chemicals represent straightforward synthetic methodologies, including tandem and sequential reactions that avoid the purification of intermediate compounds. In particular, palladium- and copper-based nanocatalysts are often applied, becoming a current strategy in the sustainable synthesis of fine chemicals. The rational tailoring of nanosized materials involving both those immobilized on solid supports and liquid phases and their applications in organic synthesis are herein reviewed.
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Affiliation(s)
- Antonio Reina
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Trung Dang-Bao
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Vietnam
- Vietnam National University—Ho Chi Minh City (VNU—HCM), Ho Chi Minh City 700000, Vietnam
| | - Itzel Guerrero-Ríos
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Montserrat Gómez
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Toulouse 3—Paul Sabatier, UMR CNRS 5069, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France;
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21
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Jin F, Liu J, Chen Y, Zhang Z. Tethering Flexible Polymers to Crystalline Porous Materials: A Win–Win Hybridization Approach. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011213] [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)
- Fazheng Jin
- Renewable energy conversion and storage center College of Chemistry Nankai University Tianjin 300071 China
| | - Jinjin Liu
- Renewable energy conversion and storage center College of Chemistry Nankai University Tianjin 300071 China
| | - Yao Chen
- State Key Laboratory of Medicinal Chemical biology Nankai University Tianjin 300071 China
| | - Zhenjie Zhang
- Renewable energy conversion and storage center College of Chemistry Nankai University Tianjin 300071 China
- State Key Laboratory of Medicinal Chemical biology Nankai University Tianjin 300071 China
- Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education Nankai University Tianjin 300071 China
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22
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Fapojuwo DP, Oseghale CO, Akinnawo CA, Meijboom R. Bimetallic PdM (M = Co, Ni) catalyzed hydrogenation of nitrobenzene at the water/oil interface in a Pickering emulsion. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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23
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Pandey R, Singh D, Thakur N, Raj KK. Catalytic C-H Bond Activation and Knoevenagel Condensation Using Pyridine-2,3-Dicarboxylate-Based Metal-Organic Frameworks. ACS OMEGA 2021; 6:13240-13259. [PMID: 34056473 PMCID: PMC8158822 DOI: 10.1021/acsomega.1c01155] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/23/2021] [Indexed: 05/08/2023]
Abstract
Three 1D coordination polymers (CPs) [M(pdca)(H2O)2] n (M = Zn, Cd, and Co; 1-3), and a 3D coordination framework {[(CH3)2NH2][CuK(2,3-pdca)(pa)(NO3)2]} n (4) (2,3-pdca = pyridine-2,3-dicarboxylate and pa = picolinic acid), have been synthesized adopting a solvothermal reaction strategy. The CPs have been thoroughly characterized using various spectral techniques, that is, elemental analyses, FT-IR, TGA, DSC, UV/vis, and luminescence. Structural information on 1-4 was obtained by PXRD and X-ray single-crystal analyses, whereas morphological insights were attained through FESEM, AFM, EDX, HRTEM, and BET surface area analyses. Roughness parameters were calculated from AFM analysis, whereas dimensions of small domains and interplanar spacing were defined with the aid of HRTEM. CPs 1-3 are 1D isostructural networks, whereas 4 is a 3D framework. Moreover, 1-4 display moderate luminescence at rt. In addition, 1-4 have been applied as economic and efficient porous catalysts for the Knoevenagel condensation reaction and C-H bond activation under mild conditions with good yields (95-98 and 97-99%), respectively. Notably, 1-3 can be reused up to seven cycles, whereas 4 can be reused up to five catalytic cycles with retained catalytic efficiency. Relative catalytic efficacy toward the Knoevenagel condensation reaction follows in the order 2 > 1 > 3 > 4, whereas 2 > 4 > 1 > 3 for C-H activation. The present result demonstrates synthetic, structural, optical, morphological, and catalytic aspects of 1-4.
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Affiliation(s)
- Rampal Pandey
- Department
of Chemistry, National Institute of Technology
Uttarakhand, Srinagar, Uttarakhand 246174, India
| | - Durgesh Singh
- Department
of Chemistry, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Neha Thakur
- Department
of Chemistry, National Institute of Technology
Uttarakhand, Srinagar, Uttarakhand 246174, India
| | - Krishna K. Raj
- Department
of Chemistry, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
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24
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Nirosha Yalamandala B, Shen W, Min S, Chiang W, Chang S, Hu S. Advances in Functional Metal‐Organic Frameworks Based On‐Demand Drug Delivery Systems for Tumor Therapeutics. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100014] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Bhanu Nirosha Yalamandala
- Department of Biomedical Engineering and Environmental Sciences National Tsing Hua University Hsinchu 300 Taiwan
| | - Wei‐Ting Shen
- Department of Biomedical Engineering and Environmental Sciences National Tsing Hua University Hsinchu 300 Taiwan
| | - Sheng‐Hao Min
- Department of Biomedical Engineering and Environmental Sciences National Tsing Hua University Hsinchu 300 Taiwan
| | - Wen‐Hsuan Chiang
- Department of Chemical Engineering National Chung Hsing University Taichung 402 Taiwan
| | - Shing‐Jyh Chang
- Department of Obstetrics and Gynecology Hsinchu MacKay Memorial Hospital Hsinchu 300 Taiwan
| | - Shang‐Hsiu Hu
- Department of Biomedical Engineering and Environmental Sciences National Tsing Hua University Hsinchu 300 Taiwan
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25
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Sun Z, Zhao Q, Haag R, Wu C. Responsive Emulsions for Sequential Multienzyme Cascades. Angew Chem Int Ed Engl 2021; 60:8410-8414. [PMID: 33480131 PMCID: PMC8048562 DOI: 10.1002/anie.202013737] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/17/2020] [Indexed: 12/12/2022]
Abstract
Multienzyme cascade biocatalysis is an efficient synthetic process, avoiding the isolation/purification of intermediates and shifting the reaction equilibrium to the product side.. However, multienzyme systems are often limited by their incompatibility and cross-reactivity. Herein, we report a multi-responsive emulsion to proceed multienzyme reactions sequentially for high reactivity. The emulsion is achieved using a CO2 , pH, and thermo-responsive block copolymer as a stabilizer, allowing the on-demand control of emulsion morphology and phase composition. Applying this system to a three-step cascade reaction enables the individual optimal condition for each enzyme, and a high overall conversion (ca. 97 % of the calculated limit) is thereby obtained. Moreover, the multi-responsiveness of the emulsion allows the facile and separate yielding/recycling of products, polymers and active enzymes. Besides, the system could be scaled up with a good yield.
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Affiliation(s)
- Zhiyong Sun
- Department of Physics, Chemistry and PharmacyUniversity of Southern DenmarkCampusvej 555230OdenseDenmark
| | - Qingcai Zhao
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustr. 314195BerlinGermany
| | - Rainer Haag
- Institute of Chemistry and BiochemistryFreie Universität BerlinTakustr. 314195BerlinGermany
| | - Changzhu Wu
- Department of Physics, Chemistry and PharmacyUniversity of Southern DenmarkCampusvej 555230OdenseDenmark
- Danish Institute for Advanced StudyUniversity of Southern DenmarkCampusvej 555230OdenseDenmark
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26
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Sun Z, Zhao Q, Haag R, Wu C. Responsive Emulsions for Sequential Multienzyme Cascades. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Zhiyong Sun
- Department of Physics, Chemistry and Pharmacy University of Southern Denmark Campusvej 55 5230 Odense Denmark
| | - Qingcai Zhao
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustr. 3 14195 Berlin Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry Freie Universität Berlin Takustr. 3 14195 Berlin Germany
| | - Changzhu Wu
- Department of Physics, Chemistry and Pharmacy University of Southern Denmark Campusvej 55 5230 Odense Denmark
- Danish Institute for Advanced Study University of Southern Denmark Campusvej 55 5230 Odense Denmark
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27
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Jin F, Liu J, Chen Y, Zhang Z. Tethering Flexible Polymers to Crystalline Porous Materials: A Win–Win Hybridization Approach. Angew Chem Int Ed Engl 2021; 60:14222-14235. [DOI: 10.1002/anie.202011213] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Indexed: 12/30/2022]
Affiliation(s)
- Fazheng Jin
- Renewable energy conversion and storage center College of Chemistry Nankai University Tianjin 300071 China
| | - Jinjin Liu
- Renewable energy conversion and storage center College of Chemistry Nankai University Tianjin 300071 China
| | - Yao Chen
- State Key Laboratory of Medicinal Chemical biology Nankai University Tianjin 300071 China
| | - Zhenjie Zhang
- Renewable energy conversion and storage center College of Chemistry Nankai University Tianjin 300071 China
- State Key Laboratory of Medicinal Chemical biology Nankai University Tianjin 300071 China
- Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education Nankai University Tianjin 300071 China
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28
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Yang L, Zhao X, Lei M, Sun J, Yang L, Shen Y, Zhao Q. Facile construction of thermo-responsive Pickering emulsion for esterification reaction in phase transfer catalysis system. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Lotus seedpod-like molecularly imprinted polymers fabricated by MOF-808 stabilized Pickering emulsion and their specific recognition of hemoglobin. Colloids Surf B Biointerfaces 2021; 197:111446. [DOI: 10.1016/j.colsurfb.2020.111446] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/16/2020] [Accepted: 10/26/2020] [Indexed: 02/04/2023]
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30
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Cleveland JW, Kumar DR, Cho J, Jang SS, Jones CW. Creation of discrete active site domains via mesoporous silica poly(styrene) composite materials for incompatible acid–base cascade reactions. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01988g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Mesoporous silica/polymer hybrid materials catalyze a two-step acid and base cascade reaction. Catalyst design emphasizes compartmentalization of incompatible Lewis base and Brønsted acid catalysts by tuning polymer chain length and silica pore diameter.meter.
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Affiliation(s)
- Jacob W. Cleveland
- School of Chemical & Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Dharam Raj Kumar
- School of Chemical & Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Jinwon Cho
- School of Materials Science and Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Seung Soon Jang
- School of Materials Science and Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Christopher W. Jones
- School of Chemical & Biomolecular Engineering
- Georgia Institute of Technology
- Atlanta
- USA
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31
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Chen H, Yu Z, Cao K, Chen L, Pang Y, Xie C, Jiang Y, Zhu L, Wang J. Preparation of a BTA–UIO–GO nanocomposite to endow coating systems with active inhibition and passive anticorrosion performances. NEW J CHEM 2021. [DOI: 10.1039/d1nj03104j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Zirconium ions (Zr4+) react with hydroxide ions (OH−) to form a zirconium hydroxide (Zr(OH)4) passive film to protect the metal.
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Affiliation(s)
- Haidong Chen
- Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China
- The National Natural Science Foundation of China, Chengdu, 610500, China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Zongxue Yu
- Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China
- The National Natural Science Foundation of China, Chengdu, 610500, China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Kunyao Cao
- Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China
- The National Natural Science Foundation of China, Chengdu, 610500, China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Legang Chen
- Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China
- The National Natural Science Foundation of China, Chengdu, 610500, China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Yao Pang
- Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China
- The National Natural Science Foundation of China, Chengdu, 610500, China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Chunxia Xie
- Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China
- The National Natural Science Foundation of China, Chengdu, 610500, China
- State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Yong Jiang
- Chengdu Hongrun Paint Limited Company, Chengdu, Sichuan 611930, China
| | - Lijuan Zhu
- Tubular Goods Research Institute of China National Petroleum Corporation, Xi’an, 710077, China
- State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi’an, 710077, China
| | - Juan Wang
- Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China
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32
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Zhou K, Tian T, Wang C, Zhao H, Gao N, Yin H, Wang P, Ravoo BJ, Li G. Multifunctional Integrated Compartment Systems for Incompatible Cascade Reactions Based on Onion-Like Photonic Spheres. J Am Chem Soc 2020; 142:20605-20615. [PMID: 33245854 DOI: 10.1021/jacs.0c00513] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
One of the central aims of synthetic biology and metabolic engineering is to mimic the integrality of eukaryotic cells to construct a multifunctional compartment system to perform multistep incompatible cascade reactions in a one-pot, controlled, and selective fashion. The key challenge is how to address the coexistence of antagonistic reagents and to incorporate these functionalities into an integrated system in a smart and efficient way. A novel strategy called "iterative etching-grafting" is proposed here based on monodispersed photonic spheres (PSs) prepared by microfluidics, which constructs a universal platform for incompatible cascade reactions. As a proof of concept, we spatiotemporally regulated the degree of etching of PSs, then grafted precursory groups of acid and base onto PSs, and incorporated a photocleavage method, which were capable of compartmentalizing the acid and base inside PSs. Utilizing the band-gap offsets of PSs could track the progress of cascade reactions in situ, and grafting various charged polymers on the surface of the pores by surface-initiated atom transfer radical polymerization (SI-ATRP) achieved the selectivity of the substrates, which flexibly constructed a multifunctional and integrated acid-base photonic multicompartment system (PMCS). The created PMCS shows excellent catalytic performance, convenient monitoring, and efficient substrate selectivity in the deacetalization-Knoevenagel cascade reaction. Furthermore, two types of electrophile/nucleophile PMCSs have also been accessibly constructed, demonstrating the facile generation of other incompatible systems with the versatility as well as the advancement and extensibility of the developed strategy.
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Affiliation(s)
- Kang Zhou
- Department of Chemistry, Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing 100084, China
| | - Tian Tian
- Department of Chemistry, Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing 100084, China
| | - Chen Wang
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Hongwei Zhao
- Department of Chemistry, Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing 100084, China
| | - Ning Gao
- Department of Chemistry, Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing 100084, China
| | - Hang Yin
- Department of Chemistry, Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing 100084, China
| | - Peng Wang
- Department of Chemistry, Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing 100084, China
| | - Bart Jan Ravoo
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Münster 48149, Germany
| | - Guangtao Li
- Department of Chemistry, Key Lab of Organic Optoelectronics & Molecular Engineering, Tsinghua University, Beijing 100084, China
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33
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Liu J, Huang J, Zhang L, Lei J. Multifunctional metal-organic framework heterostructures for enhanced cancer therapy. Chem Soc Rev 2020; 50:1188-1218. [PMID: 33283806 DOI: 10.1039/d0cs00178c] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metal-organic frameworks (MOFs) are an emerging class of molecular crystalline materials built from metal ions or clusters bridged by organic linkers. By taking advantage of their synthetic tunability and structural regularity, MOFs can hierarchically integrate nanoparticles and/or biomolecules into a single framework to enable multifunctions. The MOF-protected heterostructures not only enhance the catalytic capacity of nanoparticle components but also retain the biological activity of biomolecules in an intracellular microenvironment. Therefore, the multifunctional MOF heterostructures have great advantages over single components in cancer therapy. In this review, we comprehensively summarize the general principle of the design and functional modulation of nanoscaled MOF heterostructures, and biomedical applications in enhanced therapy within the last five years. The functions of MOF heterostructures with a controlled size can be regulated by designing various functional ligands and in situ growth/postmodification of nanoparticles and/or biomolecules. The advances in the application of multifunctional MOF heterostructures are also explored for enhanced cancer therapies involving photodynamic therapy, photothermal therapy, chemotherapy, radiotherapy, immunotherapy, and theranostics. The remaining challenges and future opportunities in this field, in terms of precisely localized assembly, maximizing composite properties, and processing new techniques, are also presented. The introduction of multiple components into one crystalline MOF provides a promising approach to design all-in-one theranostics in clinical treatments.
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Affiliation(s)
- Jintong Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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34
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Shi Y, Xiong D, Li Z, Wang H, Qiu J, Zhang H, Wang J. Ambient CO 2/N 2 Switchable Pickering Emulsion Emulsified by TETA-Functionalized Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53385-53393. [PMID: 33170635 DOI: 10.1021/acsami.0c13157] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent years, metal-organic frameworks (MOFs) have been explored as emulsifiers for the fabrication of Pickering emulsions and then used for hybrid material synthesis and interface catalysis. Nevertheless, stimuli-responsive Pickering emulsions stabilized by MOFs have been rarely reported so far, although they are of great importance for fundamental research studies and practical applications. Herein, for the first time, triethylenetetramine (TETA)-functionalized MOFs (ZIF-90/TETA) have been designed, synthesized, and used for fabricating CO2-/N2-response Pickering emulsions. It is shown that even at the ZIF-90/TETA content of 0.25 wt %, the functional MOF can still efficiently emulsify n-hexane and water to form a high internal phase Pickering emulsion. Importantly, the Pickering emulsion can be easily and reversibly switched between emulsification and demulsification by bubbling of CO2 and N2 alternatively at atmospheric pressure. The possible mechanism of the CO2/N2 switchable emulsion is investigated by zeta potential, water contact angle, interfacial tension, 13C NMR spectroscopy, and an optical microscope. It is found that the acid-base reaction of CO2 with TETA anchored on the surface of ZIF-90 leads to the production of hydrophilic ammonium bicarbonate and carbamate, which results in the emulsification of the Pickering emulsion. However, when N2 is bubbled to remove CO2, the reverse reaction takes place to cause the demulsification of the Pickering emulsion. Moreover, the CO2/N2 switchable Pickering emulsion has been successfully used as a microreactor for Knoevenagel reactions to demonstrate a highly efficient integration of chemical reaction, product separation, and ZIF-90/TETA recycling for a sustainable chemical process.
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Affiliation(s)
- Yunlei Shi
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China
| | - Dazhen Xiong
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Zhiyong Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Huiyong Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jikuan Qiu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Hucheng Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jianji Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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35
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Zhang N, Wang F, Cai C, Sun Q, Zhang K, Li A, Weng J, Li Q. Noncovalent
modification of
self‐assembled
functionalized
COF
by
PNIPAM
and its properties of Pickering emulsion. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Na Zhang
- School of Materials Science and Engineering Shandong University of Technology Zibo China
| | - Fei Wang
- School of Materials Science and Engineering Shandong University of Technology Zibo China
| | - Chang‐chen Cai
- School of Materials Science and Engineering Shandong University of Technology Zibo China
| | - Qian Sun
- School of Materials Science and Engineering Shandong University of Technology Zibo China
| | - Kai Zhang
- School of Materials Science and Engineering Shandong University of Technology Zibo China
| | - Ai‐xiang Li
- School of Materials Science and Engineering Shandong University of Technology Zibo China
| | - Jun‐ying Weng
- School of Materials Science and Engineering Shandong University of Technology Zibo China
| | - Qiu‐hong Li
- School of Materials Science and Engineering Shandong University of Technology Zibo China
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36
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Álvarez-Bermúdez O, Torres-Suay A, Pérez-Pla FF, Landfester K, Muñoz-Espí R. Magnetically enhanced polymer-supported ceria nanocatalysts for the hydration of nitriles. NANOTECHNOLOGY 2020; 31:405604. [PMID: 32259810 DOI: 10.1088/1361-6528/ab8765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The heterogeneous catalysis of the hydration of nitriles to amides is a process of great industrial relevance in which cerium(IV) oxide (also referred to as ceria) has shown an outstanding catalytic performance. The use of non-supported ceria nanoparticles is related to difficulties in the purification of the product and the recovery and recyclability of the catalyst. Therefore, in this work, ceria nanoparticles are supported on a polymer matrix either by synthesizing polymer particles by so-called Pickering miniemulsions while using ceria nanoparticles as emulsion stabilizers or, as a comparison, by in-situ crystallization on preformed polymer particles. The former strategy presents significant advantages over the latter in terms of time and consumption of resources, and it facilitates an easier scale-up of the process. In both strategies, the incorporation of a magnetoresponsive core within the polymer matrix allows the recovery and the recycling of the catalyst by simple application of a magnetic field and offers an enhancement of the catalytic efficiency.
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Affiliation(s)
- Olaia Álvarez-Bermúdez
- Institute of Materials Science (ICMUV), University of Valencia, c/ Catedràtic José Beltrán 2, 46980 Paterna, Spain. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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37
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Puthiaraj P, Yu K, Baeck SH, Ahn WS. Cascade Knoevenagel condensation-chemoselective transfer hydrogenation catalyzed by Pd nanoparticles stabilized on amine-functionalized aromatic porous polymer. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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38
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Real-Time Analysis of the Stability of Oil-In-Water Pickering Emulsion by Electrochemical Impedance Spectroscopy. Molecules 2020; 25:molecules25122904. [PMID: 32599776 PMCID: PMC7355891 DOI: 10.3390/molecules25122904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 11/16/2022] Open
Abstract
In this paper, electrical impedance spectroscopy (EIS) was applied to investigate the stability of oil-in-water (O/W) Pickering emulsions prepared with negatively charged silica nanoparticles in combination with a trace amount of redox switchable fluorescent molecules, ferrocene azine (FcA). Electrical impedance values of emulsions obtained at different emulsification speeds were estimated according to the frequency response data with frequencies ranging from 1 MHz to 1 Hz. The equivalent circuit model of toluene-in-water emulsion was established by the resistor (RO/W) and capacitor (CO/W) in parallel connection. Nyquist diagrams for the emulsions prepared by toluene and water were characterized by the formation of one semi-circle. The droplet size distribution is one of the important factors that affect the stability of the emulsion, except for the volume fraction of water and oil, the size of stabilizing particles, etc. The average particle size of the emulsion droplets decreased as the emulsification speed increased, indicating the higher stability of the emulsion. It was found that the fitted impedance value RO/W of the emulsion decreased with decreasing particle size prepared at different emulsification speeds and storage time by performing real-time EIS detection techniques. The results suggested that EIS could be used to characterize the stability of a toluene-in-water emulsion stabilized by FcA modified silica nanoparticles. Moreover, based on the good electrochemical activity of the FcA molecule, the stability of the Pickering emulsion can be modulated by adding oxidant and reductant and detected by EIS in real-time.
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39
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Cheng L, Zhao K, Zhang Q, Li Y, Zhai Q, Chen J, Lou Y. Chiral Proline-Decorated Bifunctional Pd@NH2-UiO-66 Catalysts for Efficient Sequential Suzuki Coupling/Asymmetric Aldol Reactions. Inorg Chem 2020; 59:7991-8001. [DOI: 10.1021/acs.inorgchem.0c00065] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Lin Cheng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, PR China
| | - Kaiyuan Zhao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, PR China
| | - Qingsong Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, PR China
| | - Yiming Li
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, PR China
| | - Qingchao Zhai
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, PR China
| | - Jinxi Chen
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, PR China
| | - Yongbing Lou
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 210009, PR China
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40
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Kalaj M, Bentz KC, Ayala S, Palomba JM, Barcus KS, Katayama Y, Cohen SM. MOF-Polymer Hybrid Materials: From Simple Composites to Tailored Architectures. Chem Rev 2020; 120:8267-8302. [PMID: 31895556 DOI: 10.1021/acs.chemrev.9b00575] [Citation(s) in RCA: 298] [Impact Index Per Article: 74.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Metal-organic frameworks (MOFs) are inherently crystalline, brittle porous solids. Conversely, polymers are flexible, malleable, and processable solids that are used for a broad range of commonly used technologies. The stark differences between the nature of MOFs and polymers has motivated efforts to hybridize crystalline MOFs and flexible polymers to produce composites that retain the desired properties of these disparate materials. Importantly, studies have shown that MOFs can be used to influence polymer structure, and polymers can be used to modulate MOF growth and characteristics. In this Review, we highlight the development and recent advances in the synthesis of MOF-polymer mixed-matrix membranes (MMMs) and applications of these MMMs in gas and liquid separations and purifications, including aqueous applications such as dye removal, toxic heavy metal sequestration, and desalination. Other elegant ways of synthesizing MOF-polymer hybrid materials, such as grafting polymers to and from MOFs, polymerization of polymers within MOFs, using polymers to template MOFs, and the bottom-up synthesis of polyMOFs and polyMOPs are also discussed. This review highlights recent papers in the advancement of MOF-polymer hybrid materials, as well as seminal reports that significantly advanced the field.
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Affiliation(s)
- Mark Kalaj
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Kyle C Bentz
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Sergio Ayala
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Joseph M Palomba
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Kyle S Barcus
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Yuji Katayama
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States.,Asahi Kasei Corporation, 2-1 Samejima, Fuji-city, Shizuoka 416-8501, Japan
| | - Seth M Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
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41
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Novel amphiphilic cellulose nanocrystals for pH-responsive Pickering emulsions. Carbohydr Polym 2019; 229:115401. [PMID: 31826496 DOI: 10.1016/j.carbpol.2019.115401] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/07/2019] [Accepted: 09/28/2019] [Indexed: 01/14/2023]
Abstract
Development of a green, recyclable emulsifier for pH-responsive Pickering emulsion would be of great importance to many industries. To this end, a novel emulsifier, benzyl-polyethyleneimine modified cellulose nanocrystals (Ben-PEI-CNCs), was developed via the periodate oxidation of cellulose nanocrystals and reductive amination. Ben-PEI-CNCs possess pH-responsive amphiphilicity due to the existence of hydrophilic amino and hydrophobic benzyl groups. The Pickering emulsions stabilized by Ben-PEI-CNC2 and Ben-PEI-CNC18 are very responsive to pH changes, and adjusting the pH from 3 to 7 effectively triggers oil-water separation and emulsification. Additionally, cyclic testing establishes the robustness of this process. Overall, this study demonstrates that Ben-PEI-CNCs can promote the transition from a stable emulsion to an unstable emulsion by adjusting the pH, allowing the recovery of oil and the recycling of the emulsifier.
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42
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Guo Y, Feng L, Wu C, Wang X, Zhang X. Synthesis of 3D-Ordered Macro/Microporous Yolk-Shelled Nanoreactor with Spatially Separated Functionalities for Cascade Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:33978-33986. [PMID: 31448587 DOI: 10.1021/acsami.9b11578] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Constructing three-dimensional (3D) hierarchical materials with spatial compartmentalization of multiple catalytic functionalities effectively facilitates the chemical processes' intensification, especially for bulky-molecule-involved cascade reaction. Herein, a facile and novel core-shell colloidal crystal templating strategy was developed to synthesize highly ordered arrays of integrated yolk-shelled nanoreactor consisting of monolithically interconnected ZIF-8 shell and sulfonated polystyrene yolks decorated with rhodium nanoparticles. The obtained nanoreactor achieves efficient catalytic one-pot cascade Knoevenagel condensation-hydrogenation reactions for larger molecules, by taking advantage of the superior mass diffusion properties of the hierarchical macro/microporous metal-organic framework (MOF) skeleton, robust monolith nature, and spatially separated functionalities. This work offers an important strategy for preparing MOF-based composites with a hierarchical framework, accelerating various applications of MOFs, such as electrochemical applications, photothermal conversion, and heterogeneous catalysis.
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Affiliation(s)
- Yingchun Guo
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Lei Feng
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Changcheng Wu
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Xiaomei Wang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Xu Zhang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
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43
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Luo S, Zeng Z, Zeng G, Liu Z, Xiao R, Chen M, Tang L, Tang W, Lai C, Cheng M, Shao B, Liang Q, Wang H, Jiang D. Metal Organic Frameworks as Robust Host of Palladium Nanoparticles in Heterogeneous Catalysis: Synthesis, Application, and Prospect. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32579-32598. [PMID: 31429261 DOI: 10.1021/acsami.9b11990] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Metal organic frameworks (MOFs) are one set of the most excellent supports for Pd nanoparticles (NPs). MOFs as the host mainly have the following advantages: (i) they provide size limits for highly dispersed Pd NPs; (ii) fixing Pd NPs is beneficial for separation and reuse, avoiding the loss of expensive metals; (iii) the MOFs skeleton is diversified and functionalized, which is beneficial to enhancing the interaction with Pd NPs and prolonging the service life of the catalyst. This review discusses the synthesis strategy of Pd@MOF, which provides guidance for the synthesis of similar materials. After that, the research advance of Pd@MOF in heterogeneous catalysis is comprehensively summarized, including C-C coupling reaction, benzyl alcohol oxidation reaction, simple olefin hydrogenation reaction, nitroaromatic compound reduction, tandem reaction, and the photocatalysis, with the emphasis in providing a comparison with the performance of other alternative Pd-containing catalysts. In the final section, this review presents the current challenges and which are the next goals in this field.
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Affiliation(s)
- Songhao Luo
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Zhuotong Zeng
- Department of Dermatology, Second Xiangya Hospital , Central South University , Changsha 410011 , People's Republic of China
| | - Guangming Zeng
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Zhifeng Liu
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Rong Xiao
- Department of Dermatology, Second Xiangya Hospital , Central South University , Changsha 410011 , People's Republic of China
| | - Ming Chen
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Lin Tang
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Wangwang Tang
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Cui Lai
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Min Cheng
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Binbin Shao
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Qinghua Liang
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Han Wang
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
| | - Danni Jiang
- College of Environmental Science and Engineering , Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) , Ministry of Education, Changsha 410082 , People's Republic of China
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44
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Schmidt BVKJ. Metal-Organic Frameworks in Polymer Science: Polymerization Catalysis, Polymerization Environment, and Hybrid Materials. Macromol Rapid Commun 2019; 41:e1900333. [PMID: 31469204 DOI: 10.1002/marc.201900333] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/16/2019] [Indexed: 12/23/2022]
Abstract
The development of metal-organic frameworks (MOFs) has had a significant impact on various fields of chemistry and materials science. Naturally, polymer science also exploited this novel type of material for various purposes, which is due to the defined porosity, high surface area, and catalytic activity of MOFs. The present review covers various topics of MOF/polymer research beginning with MOF-based polymerization catalysis. Furthermore, polymerization inside MOF pores as well as polymerization of MOF ligands is described, which have a significant effect on polymer structures. Finally, MOF/polymer hybrid and composite materials are highlighted, encompassing a range of material classes, like bulk materials, membranes, and dispersed materials. In the course of the review, various applications of MOF/polymer combinations are discussed (e.g., adsorption, gas separation, drug delivery, catalysis, organic electronics, and stimuli-responsive materials). Finally, past research is concluded and an outlook toward future development is provided.
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Affiliation(s)
- Bernhard V K J Schmidt
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476, Potsdam, Germany.,School of Chemistry, University of Glasgow, Joseph Black Building, Glasgow, G12 8QQ, UK
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45
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Wang Q, Astruc D. State of the Art and Prospects in Metal–Organic Framework (MOF)-Based and MOF-Derived Nanocatalysis. Chem Rev 2019; 120:1438-1511. [DOI: 10.1021/acs.chemrev.9b00223] [Citation(s) in RCA: 894] [Impact Index Per Article: 178.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qi Wang
- ISM, UMR CNRS N°5255, University of Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, UMR CNRS N°5255, University of Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
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46
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Tao W, Wang J, Parak WJ, Farokhzad OC, Shi J. Nanobuffering of pH-Responsive Polymers: A Known but Sometimes Overlooked Phenomenon and Its Biological Applications. ACS NANO 2019; 13:4876-4882. [PMID: 30985108 PMCID: PMC6748625 DOI: 10.1021/acsnano.9b01696] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
With recent advances in polymer chemistry, materials science, and nanotechnology, pH-responsive polymers have a significant impact in a number of diverse fields. Fundamental studies of these polymers are thus highly desirable as they may lead to new insights into the rational design of pH-responsive polymers with specific effects. In this Perspective, we focus on the nanobuffering of pH-responsive polymers (NBPRP). Although researchers have known of such buffering effects for more than a century, for example, in the context of the Henderson-Hasselbalch equation, modern synthesis and analysis routes now enable us to analyze these effects on the nanometer scale. In this way, the NBPRP phenomenon was explicitly defined and described by Gauthier and colleagues in the February issue of ACS Nano. Here, we highlight several potential areas in which the NBPRP could enable innovative classes of biological applications. We expect deeper mechanistic understanding of nanobuffering effects induced by pH-responsive polymers to have a significant impact on the future development and applications of these polymers.
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Affiliation(s)
- Wei Tao
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Junqing Wang
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Wolfgang J. Parak
- Center for Hybrid Nanostructures (CHyN), Univeristät Hamburg, 22607 Hamburg, Germany
| | - Omid C. Farokhzad
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Jinjun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
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Zhang Y, Chen K, Cao L, Li K, Wang Q, Fu E, Guo X. Stabilization of Pickering Emulsions by Hairy Nanoparticles Bearing Polyanions. Polymers (Basel) 2019; 11:E816. [PMID: 31067697 PMCID: PMC6571738 DOI: 10.3390/polym11050816] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/13/2019] [Accepted: 04/28/2019] [Indexed: 11/23/2022] Open
Abstract
Pickering emulsions are increasingly applied in drug delivery, oil-water separation, composite materials preparation, and other fields. However, systematic studies on the stabilization of Pickering emulsions to satisfy the growing application demands in multiple fields with long-term conservation are rare. Compared to conventional solid nanoparticles, polyanion-modified hairy nanoparticles are more stable in practical environments and are investigated in this study. Poly (sodium p-styrenesulfonate) was grafted to a polystyrene (PS) core via a photoemulsion polymerization. A hairy nanoparticle bearing polyanions called poly (sodium p-styrenesulfonate) brush (PS@PSS) was synthesized. The size and uniformity of the Pickering emulsions stabilized by PS@PSS were investigated via a polarizing microscope. The stability of Pickering emulsions were optimized by adjusting critical factors like ultrasonic power and time, standing time, oil phases, salt concentration, and water:oil ratio. Results indicated that the Pickering emulsions could be stabilized by PS@PSS nanoparticles, which showed remarkable and adjustable partial wetting properties. It was found that the optimized conditions were ultrasonic power of 150 W, ultrasonic time of 3 min, salt concentration of 0.1 mM, oil phase of hexadecane, and water:oil ratio of 1:1. The formation and stability of Pickering emulsion are closely related to the hairy poly (sodium p-styrenesulfonate) brush layer on the nanoparticle surface.
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Affiliation(s)
- Ying Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Kaimin Chen
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Lan Cao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Kai Li
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Qiaoling Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Enyu Fu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
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Tang J, Zhou X, Cao S, Zhu L, Xi L, Wang J. Pickering Interfacial Catalysts with CO 2 and Magnetic Dual Response for Fast Recovering in Biphasic Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16156-16163. [PMID: 30964259 DOI: 10.1021/acsami.9b00821] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Pickering interfacial catalysis provides an excellent platform for biphasic reactions, but the separation and recycling of nanocatalysts is a challenge because of high adsorption energy of nanocatalysts at the liquid-liquid interface. In this work, we represent a new type of versatile Pickering emulsion based on magnetic and CO2-responsive nanohybrids Fe3O4@SiO2@P(TMA-DEA). The smart nanoparticles can stabilize the water-in-oil Pickering emulsion in the biphasic system and achieve the subsequent demulsification by bubbling CO2 ascribed to their reversible switching surface. In the absence of energy barrier, the nanohybrids can be easily captured in situ by magnetic field in 2 min and showed excellent recyclability. In the Anelli system for alcohol oxidation, the nanocatalyst exhibited threefold enhancement in catalytic efficiency in comparison with an unemulsified two-phase and little loss on activity after five cycles. The conceptually novel dual-responsive system offers a green and energy-saving strategy for effective recycling of the nanocatalyst and intensification of biphasic reaction.
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Affiliation(s)
- Jun Tang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Xue Zhou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Shixiong Cao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Lingyu Zhu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Lingling Xi
- Department of Chemistry , Zhejiang University , Xixi Campus , Hangzhou 310028 , China
| | - Jianli Wang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou 310014 , China
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Zhao Q, Zhao X, Peng H, Liu Y, Yang L, Sun J, Yang L, Shen Y. Static phase transfer catalysis for Williamson reactions: Pickering interfacial catalysis. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00620f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A static PIC system with silica particles was prepared for PTC reactions and exhibited enhanced catalytic activity.
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Affiliation(s)
- Qianqiang Zhao
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xiao Zhao
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Hui Peng
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yang Liu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Lihui Yang
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Jie Sun
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Lei Yang
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yifeng Shen
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
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Lee J, Chang JY. Pickering Emulsion Stabilized by Microporous Organic Polymer Particles for the Fabrication of a Hierarchically Porous Monolith. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:11843-11849. [PMID: 30183302 DOI: 10.1021/acs.langmuir.8b02576] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A hierarchically porous monolith comprising the melamine-based microporous organic polymer (MOP) particles was prepared by the Pickering emulsion templating method. The MOP particles were synthesized by polycondensation of melamine and terephthaldicarboxaldehyde. Because of the balanced presence of hydrophilic nitrogen containing groups and hydrophobic benzene rings, the MOP particles showed good amphiphilicity. A Pickering emulsion was prepared, where cyclohexane droplets with an average size of about 25 μm were stabilized by the MOP particles (3.4 wt %) in an aqueous continuous phase. The cyclohexane internal phase fraction was slightly higher than 60%. The emulsion showed no phase separation even after two weeks. The Pickering emulsion containing a small amount of polyvinyl alcohol (1 wt %) in a continuous phase as a reinforcement was used as a template for the fabrication of a monolith of the MOP particles. The Pickering emulsion was freeze-dried to produce a hierarchically porous monolith. The MOP monolith possessed macropores templated by the oil droplets and micro- and mesopores in the MOP particles that constituted the macropore walls. The MOP monolith exhibited a high dye absorption ability in a solution of RhB in chloroform and a good absorption capacity for nonpolar organic solvents. After the absorption, the monolith could be regenerated by solvent exchange with cyclohexane and subsequent freeze-drying.
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Affiliation(s)
- Jieun Lee
- Department of Materials Science and Engineering, College of Engineering , Seoul National University , Seoul 08826 , Korea
| | - Ji Young Chang
- Department of Materials Science and Engineering, College of Engineering , Seoul National University , Seoul 08826 , Korea
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