201
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Liu M, Xie K, Nothling MD, Gurr PA, Tan SSL, Fu Q, Webley PA, Qiao GG. Ultrathin Metal-Organic Framework Nanosheets as a Gutter Layer for Flexible Composite Gas Separation Membranes. ACS NANO 2018; 12:11591-11599. [PMID: 30354062 DOI: 10.1021/acsnano.8b06811] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ultrathin metal-organic framework (MOF) nanosheets show great potential in various separation applications. In this study, MOF nanosheets are incorporated as a gutter layer in high-performance, flexible thin-film composite membranes (TFCMs) for CO2 separation. Ultrathin MOF nanosheets (∼3-4 nm) were prepared via a surfactant-assisted method and subsequently coated onto a flexible porous support by vacuum filtration. This produced an ultrathin (∼25 nm), extremely flat MOF layer, which serves as a highly permeable gutter with reduced gas resistance when compared with conventional polydimethylsiloxane gutter layers. Subsequent spin-coating of the ultrathin MOF gutter layer with a polymeric selective layer (Polyactive) afforded a TFCM exhibiting the best CO2 separation performance yet reported for a flexible composite membrane (CO2 permeance of ∼2100 GPU with a CO2/N2 ideal selectivity of ∼30). Several unique MOF nanosheets were examined as gutter layers, each differing with regard to structure and thickness (∼10 and ∼80 nm), with results indicating that flexibility in the ultrathin MOF layer is critical for optimized membrane performance. The inclusion of ultrathin MOF nanosheets into next-generation TFCMs has the potential for major improvements in gas separation performance over current composite membrane designs.
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Affiliation(s)
- Min Liu
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Ke Xie
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Mitchell D Nothling
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Paul Andrew Gurr
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Shereen Siew Ling Tan
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Qiang Fu
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Paul A Webley
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Greg G Qiao
- Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
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202
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Liu Y, Wang Y, Huang J, Zhou Z, Zhao D, Jiang L, Shen Y. Encapsulation and controlled release of fragrances from functionalized porous metal-organic frameworks. AIChE J 2018. [DOI: 10.1002/aic.16461] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yuhang Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Yuxiang Wang
- Department of Chemical & Biomolecular Engineering; National University of Singapore; Singapore 117585 Singapore
| | - Jianxiang Huang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Zhuxian Zhou
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
| | - Dan Zhao
- Department of Chemical & Biomolecular Engineering; National University of Singapore; Singapore 117585 Singapore
| | - Liming Jiang
- Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Youqing Shen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education and Center for Bionanoengineering, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 China
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203
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Liu J, Yu H, Wang L, Deng Z, Naveed KUR, Nazir A, Haq F. Two-dimensional metal-organic frameworks nanosheets: Synthesis strategies and applications. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.09.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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204
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Cheng Y, Ying Y, Japip S, Jiang SD, Chung TS, Zhang S, Zhao D. Advanced Porous Materials in Mixed Matrix Membranes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802401. [PMID: 30048014 DOI: 10.1002/adma.201802401] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/19/2018] [Indexed: 05/18/2023]
Abstract
Membrane technology has gained great interest in industrial separation processing over the past few decades owing to its high energy efficiency, small capital investment, environmentally benign characteristics, and the continuous operation process. Among various types of membranes, mixed matrix membranes (MMMs) combining the merits of the polymer matrix and inorganic/organic fillers have been extensively investigated. With the rapid development of chemistry and materials science, recent studies have shifted toward the design and application of advanced porous materials as promising fillers to boost the separation performance of MMMs. Here, first a comprehensive overview is provided on the choices of advanced porous materials recently adopted in MMMs, including metal-organic frameworks, porous organic frameworks, and porous molecular compounds. Novel trends in MMMs induced by these advanced porous fillers are discussed in detail, followed by a summary of applying these MMMs for gas and liquid separations. Finally, a concise conclusion and current challenges toward the industrial implementation of MMMs are outlined, hoping to provide guidance for the design of high-performance membranes to meet the urgent needs of clean energy and environmental sustainability.
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Affiliation(s)
- Youdong Cheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Susilo Japip
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shu-Dong Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Tai-Shung Chung
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Sui Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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205
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Zhang S, Zhang J, Fang W, Zhang Y, Wang Q, Jin J. Ultralarge Single-Layer Porous Protein Nanosheet for Precise Nanosize Separation. NANO LETTERS 2018; 18:6563-6569. [PMID: 30182720 DOI: 10.1021/acs.nanolett.8b03155] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Highly permeable and precisely size-selective membranes are the subject of continuous pursuit for energy-efficient separation of fine chemicals. However, challenges remain in the fabrication of an ultrathin selective layer with homogeneous pores, in particular, with the pore sizes in the 1-10 nm range. We report the design of a free-standing porous nanosheet assembled with a single layer of proteins. Tobacco mosaic virus mutant (TMVm), a cylinder-shaped protein containing an inner pore of 4 nm in diameter, was cross-linked via a Cu2+-catalyzed disulfide-bond-forming reaction along the 2D orientation. By such a design, ultralarge single-layer TMVm nanosheets extending over tens of micrometers in width and with well-defined nanopores were successfully developed. A ∼40 nm thick ultrafiltration membrane laminated by the single-layer TMVm nanosheets through simple vacuum filtration accomplished the precise separation of ∼4 nm sized substances. Meanwhile, the membrane exhibited water permeance up to ∼7000 L m-2 h-1 bar-1, which is an order of magnitude improvement compared with traditional ultrafiltration membranes with a similar rejection profile.
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Affiliation(s)
- Shenxiang Zhang
- i-Lab, CAS Center for Excellence in Nanoscience, and CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
- School of Nano-Tech and Nano-Bionics , University of Science and Technology of China , Hefei 230026 , China
| | - Jianting Zhang
- i-Lab, CAS Center for Excellence in Nanoscience, and CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Wangxi Fang
- i-Lab, CAS Center for Excellence in Nanoscience, and CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Yejun Zhang
- i-Lab, CAS Center for Excellence in Nanoscience, and CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Qiangbin Wang
- i-Lab, CAS Center for Excellence in Nanoscience, and CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
| | - Jian Jin
- i-Lab, CAS Center for Excellence in Nanoscience, and CAS Key Laboratory of Nano-Bio Interface , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , China
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206
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Huang K, Wang B, Guo S, Li K. Micropatterned Ultrathin MOF Membranes with Enhanced Molecular Sieving Property. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809872] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kang Huang
- Barrer CentreDepartment of Chemical EngineeringImperial College London London SW7 2AZ UK
| | - Bo Wang
- Barrer CentreDepartment of Chemical EngineeringImperial College London London SW7 2AZ UK
| | - Song Guo
- Department of Biomedical EngineeringNational University of Singapore 7 Engineering Drive 1 Singapore 117574 Singapore
| | - Kang Li
- Barrer CentreDepartment of Chemical EngineeringImperial College London London SW7 2AZ UK
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207
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Huang K, Wang B, Guo S, Li K. Micropatterned Ultrathin MOF Membranes with Enhanced Molecular Sieving Property. Angew Chem Int Ed Engl 2018; 57:13892-13896. [PMID: 30171657 PMCID: PMC6334230 DOI: 10.1002/anie.201809872] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Indexed: 11/11/2022]
Abstract
Metal-organic frameworks (MOFs) are attractive crystalline materials for membranes due to their diverse crystalline pore structures and molecular separation properties. However, the fabrication cost is relatively high compared to conventional polymeric membranes. The concern of the cost could be eased if they are part of a value-added device, for example, as the key separation unit in a lab-on-a-chip device. This study demonstrates the feasibility of miniaturization of MOF membranes by patterning the membrane surface, a necessary step for MOF membranes to be used in compact devices. Water-stable ultrathin UiO-66 membranes with a thickness down to 250 nm on a substrate with a complex pattern were grown. The patterned membranes showed a 100 % improvement in the apparent permeation flux over conventional flat-UiO-66 membranes without compromising the molecular separation property, indicating the complexity of a surface would not be a formidable obstacle to the MOF membrane fabrication.
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Affiliation(s)
- Kang Huang
- Barrer Centre, Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Bo Wang
- Barrer Centre, Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK
| | - Song Guo
- Department of Biomedical Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574, Singapore
| | - Kang Li
- Barrer Centre, Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK
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208
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Li XY, Li ZJ, Li YZ, Hou L, Zhu Z, Wang YY. Direct Evidence: Enhanced C2H6 and C2H4 Adsorption and Separation Performances by Introducing Open Nitrogen-Donor Sites in a MOF. Inorg Chem 2018; 57:12417-12423. [DOI: 10.1021/acs.inorgchem.8b02199] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiu-Yuan Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Zhen-Jing Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Yong-Zhi Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Lei Hou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
| | - Zhonghua Zhu
- School of Chemical Engineering, The University of Queensland, Brisbane 4072, Australia
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, P. R. China
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209
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Zhao X, Wang Y, Li DS, Bu X, Feng P. Metal-Organic Frameworks for Separation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705189. [PMID: 29582482 DOI: 10.1002/adma.201705189] [Citation(s) in RCA: 577] [Impact Index Per Article: 96.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 01/12/2018] [Indexed: 05/18/2023]
Abstract
Separation is an important industrial step with critical roles in the chemical, petrochemical, pharmaceutical, and nuclear industries, as well as in many other fields. Although much progress has been made, the development of better separation technologies, especially through the discovery of high-performance separation materials, continues to attract increasing interest due to concerns over factors such as efficiency, health and environmental impacts, and the cost of existing methods. Metal-organic frameworks (MOFs), a rapidly expanding family of crystalline porous materials, have shown great promise to address various separation challenges due to their well-defined pore size and unprecedented tunability in both composition and pore geometry. In the past decade, extensive research is performed on applications of MOF materials, including separation and capture of many gases and vapors, and liquid-phase separation involving both liquid mixtures and solutions. MOFs also bring new opportunities in enantioselective separation and are amenable to morphological control such as fabrication of membranes for enhanced separation outcomes. Here, some of the latest progress in the applications of MOFs for several key separation issues, with emphasis on newly synthesized MOF materials and the impact of their compositional and structural features on separation properties, are reviewed and highlighted.
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Affiliation(s)
- Xiang Zhao
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Yanxiang Wang
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Dong-Sheng Li
- Department of Chemistry and Biochemistry, California State University Long Beach, 1250 Bellflower Boulevard, Long Beach, CA, 90840, USA
| | - Xianhui Bu
- College of Materials and Chemical Engineering, Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, 443002, China
| | - Pingyun Feng
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
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210
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Shan M, Liu X, Wang X, Yarulina I, Seoane B, Kapteijn F, Gascon J. Facile manufacture of porous organic framework membranes for precombustion CO 2 capture. SCIENCE ADVANCES 2018; 4:eaau1698. [PMID: 30255154 PMCID: PMC6155097 DOI: 10.1126/sciadv.aau1698] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/08/2018] [Indexed: 05/12/2023]
Abstract
The development of new membranes with high H2 separation performance under industrially relevant conditions (high temperatures and pressures) is of primary importance. For instance, these membranes may facilitate the implementation of energy-efficient precombustion CO2 capture or reduce energy intensity in other industrial processes such as ammonia synthesis. We report a facile synthetic protocol based on interfacial polymerization for the fabrication of supported benzimidazole-linked polymer membranes that display an unprecedented H2/CO2 selectivity (up to 40) at 423 K together with high-pressure resistance and long-term stability (>800 hours in the presence of water vapor).
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Affiliation(s)
- Meixia Shan
- Catalysis Engineering, Chemical Engineering Department, Delft University of Technology, Van der Maasweg, 9, 2629 HZ Delft, Netherlands
| | - Xinlei Liu
- Catalysis Engineering, Chemical Engineering Department, Delft University of Technology, Van der Maasweg, 9, 2629 HZ Delft, Netherlands
- Corresponding author. (X.L.); (J.G.)
| | - Xuerui Wang
- Catalysis Engineering, Chemical Engineering Department, Delft University of Technology, Van der Maasweg, 9, 2629 HZ Delft, Netherlands
| | - Irina Yarulina
- King Abdullah University of Science and Technology, KAUST Catalysis Center, Advanced Catalytic Materials, Thuwal 23955, Saudi Arabia
| | - Beatriz Seoane
- Faculty of Science, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, Utrecht 3584 CG, Netherlands
| | - Freek Kapteijn
- Catalysis Engineering, Chemical Engineering Department, Delft University of Technology, Van der Maasweg, 9, 2629 HZ Delft, Netherlands
| | - Jorge Gascon
- Catalysis Engineering, Chemical Engineering Department, Delft University of Technology, Van der Maasweg, 9, 2629 HZ Delft, Netherlands
- King Abdullah University of Science and Technology, KAUST Catalysis Center, Advanced Catalytic Materials, Thuwal 23955, Saudi Arabia
- Corresponding author. (X.L.); (J.G.)
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211
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Electron tomography reveals details of the internal microstructure of desalination membranes. Proc Natl Acad Sci U S A 2018; 115:8694-8699. [PMID: 30104388 DOI: 10.1073/pnas.1804708115] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
As water availability becomes a growing challenge in various regions throughout the world, desalination and wastewater reclamation through technologies such as reverse osmosis (RO) are becoming more important. Nevertheless, many open questions remain regarding the internal structure of thin-film composite RO membranes. In this work, fully aromatic polyamide films that serve as the active layer of state-of-the-art water filtration membranes were investigated using high-angle annular dark-field scanning transmission electron microscopy tomography. Reconstructions of the 3D morphology reveal intricate aspects of the complex microstructure not visible from 2D projections. We find that internal voids of the active layer of compressed commercial membranes account for less than 0.2% of the total polymer volume, contrary to previously reported values that are two orders of magnitude higher. Measurements of the local variation in polyamide density from electron tomography reveal that the polymer density is highest at the permeable surface for the two membranes tested and establish the significance of surface area on RO membrane transport properties. The same type of analyses could provide explanations for different flux variations with surface area for other types of membranes where the density is distributed differently. Thus, 3D reconstructions and quantitative analyses will be crucial to characterize the complex morphology of polymeric membranes used in next-generation water-purification membranes.
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212
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Xu M, Yang S, Gu Z. Two‐Dimensional Metal‐Organic Framework Nanosheets: A Rapidly Growing Class of Versatile Nanomaterials for Gas Separation, MALDI‐TOF Matrix and Biomimetic Applications. Chemistry 2018; 24:15131-15142. [DOI: 10.1002/chem.201800556] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Ming Xu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials ScienceNanjing Normal University 210023 Nanjing China
| | - Shi‐Shu Yang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials ScienceNanjing Normal University 210023 Nanjing China
| | - Zhi‐Yuan Gu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials ScienceNanjing Normal University 210023 Nanjing China
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213
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Zhang Y, Zeng H, Mao S, Kondo S, Nakajima H, Kato S, Ren CL, Uchiyama K. Reversibly Switching Molecular Spectra. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23247-23253. [PMID: 29923702 DOI: 10.1021/acsami.8b04530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Manipulation of light transmission/absorbance and reflection/emission has a great significance in smart windows and displaying media like liquid crystal. Here, we report the usage of an external electric field to reversibly switch the molecular spectra of a model molecule on the basis of its interaction with an electroresponsible polymer brush. Both the UV-vis absorbance spectrum and the fluorescence emission spectrum of the model molecule were confirmed to be electroswitchable. The electroswitchable spectra were experimentally demonstrated to be induced by the electroswitchable statuses of medium anionic poly-allyloxy hydroxypropyl sulfonate (poly-AHPS) brush. Insightfully, the molecular aggregated status of model proflavine molecules could be electrically controlled via the electroresponsible poly-AHPS brushes and then the molecular spectra of the model proflavine molecule also could be electrically and controllably shifted. The success in the manipulation of molecular spectra opens up a wide range of applications not only for displaying but also for nonlinear optics, in vivo imaging, sensors, and environmental inspection.
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Affiliation(s)
- Yong Zhang
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , 1-1 Minamiosawa , Hachioji , Tokyo 192-0397 , Japan
| | - Hulie Zeng
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , 1-1 Minamiosawa , Hachioji , Tokyo 192-0397 , Japan
| | - Sifeng Mao
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , 1-1 Minamiosawa , Hachioji , Tokyo 192-0397 , Japan
| | - Shun Kondo
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , 1-1 Minamiosawa , Hachioji , Tokyo 192-0397 , Japan
| | - Hizuru Nakajima
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , 1-1 Minamiosawa , Hachioji , Tokyo 192-0397 , Japan
| | - Shungo Kato
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , 1-1 Minamiosawa , Hachioji , Tokyo 192-0397 , Japan
| | - Carolyn L Ren
- Department of Mechanical and Mechatronics Engineering , University of Waterloo , 200 University Avenue West , Waterloo , Ontario N2L 3G1 , Canada
| | - Katsumi Uchiyama
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences , Tokyo Metropolitan University , 1-1 Minamiosawa , Hachioji , Tokyo 192-0397 , Japan
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214
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Tailoring exciton and excimer emission in an exfoliated ultrathin 2D metal-organic framework. Nat Commun 2018; 9:2401. [PMID: 29921871 PMCID: PMC6008449 DOI: 10.1038/s41467-018-04833-1] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 05/30/2018] [Indexed: 12/24/2022] Open
Abstract
Two-dimensional (2D) metal-organic frameworks have exhibited a range of fascinating attributes, of interest to numerous fields. Here, a calcium-based metal-organic framework with a 2D layered structure has been designed. Dual emissions relating to intralayer excimers and interlayer trapped excitons are produced, showing excitation-dependent shifting tendency, characteristic of a low dimensional semiconductor nature. Furthermore, the layer stacking by weak van der Waals forces among dynamically coordinated DMF molecules enables exfoliation and morphology transformation, which can be achieved by ultrasound in different ratios of DMF/H2O solvents, or grinding under appropriate humidity conditions, leading to nano samples including ultrathin nanosheets with single or few coordination layers. The cutting down of layer numbers engenders suppression of interlayer exciton-related emission, resulting in modulation of the overall emitting color and optical memory states. This provides a rare prototypical model with switchable dual-channel emissions based on 2D-MOFs, in which the interlayer excitation channel can be reversibly tuned on/off by top-down exfoliation and morphology transformation.
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215
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Dong R, Zhang T, Feng X. Interface-Assisted Synthesis of 2D Materials: Trend and Challenges. Chem Rev 2018; 118:6189-6235. [DOI: 10.1021/acs.chemrev.8b00056] [Citation(s) in RCA: 378] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Renhao Dong
- Department of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062 Dresden, Germany
| | - Tao Zhang
- Department of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062 Dresden, Germany
| | - Xinliang Feng
- Department of Chemistry and Food Chemistry & Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062 Dresden, Germany
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216
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Cao L, Wang T, Wang C. Synthetic Strategies for Constructing Two-Dimensional Metal-Organic Layers (MOLs): A Tutorial Review. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800144] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lingyun Cao
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces; Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University; Xiamen Fujian 361005 China
| | - Tingting Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces; Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University; Xiamen Fujian 361005 China
| | - Cheng Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces; Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University; Xiamen Fujian 361005 China
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217
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Lin Y, Wan H, Chen F, Liu X, Ma R, Sasaki T. Two-dimensional porous cuprous oxide nanoplatelets derived from metal-organic frameworks (MOFs) for efficient photocatalytic dye degradation under visible light. Dalton Trans 2018; 47:7694-7700. [PMID: 29790877 DOI: 10.1039/c8dt01117f] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bottom-up synthesis is a promising method to design and control the morphology of metal-organic frameworks (MOFs). Here, square shaped two-dimensional (2D) MOF nanoplatelets with a thickness of ∼80 nm and a lateral dimension of 4-6 μm were successfully synthesized through a facile solvothermal treatment of Cu(NO3)2 and 4,4'-bipyridine in the presence of polyvinyl pyrrolidone (PVP). The growth of a cross-weaved structure assembled via 1D chains linked with 4,4'-bipyridine along the layer stacking direction was hindered by PVP, resulting in a high-aspect ratio of the nanoplatelets. Subsequent annealing treatment converted the Cu-based MOFs into porous N-doped Cu2O/carbon composites, retaining the 2D square morphology. This annealed product showed a higher performance in the degradation of methyl orange under visible light compared to previously reported Cu2O composites. By using a small amount of the catalyst, the degradation rate could reach up to 2.5 mg min-1 gcat-1 as a result of the efficient absorption of visible light and high surface area of the porous catalysts.
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Affiliation(s)
- Yifan Lin
- School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
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218
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Zhang W, Li K. Editorial overview: Separation engineering: Recent development in porous materials for efficient molecular separation. Curr Opin Chem Eng 2018. [DOI: 10.1016/j.coche.2018.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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219
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Highly CO2 perm-selective metal-organic framework membranes through CO2 annealing post-treatment. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.03.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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220
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Flexibility of metal-organic frameworks for separations: utilization, suppression and regulation. Curr Opin Chem Eng 2018. [DOI: 10.1016/j.coche.2018.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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221
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222
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Moghadam F, Park HB. Two-dimensional materials: an emerging platform for gas separation membranes. Curr Opin Chem Eng 2018. [DOI: 10.1016/j.coche.2018.02.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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223
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Tan F, López-Periago A, Light ME, Cirera J, Ruiz E, Borrás A, Teixidor F, Viñas C, Domingo C, Planas JG. An Unprecedented Stimuli-Controlled Single-Crystal Reversible Phase Transition of a Metal-Organic Framework and Its Application to a Novel Method of Guest Encapsulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1800726. [PMID: 29845666 DOI: 10.1002/adma.201800726] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/18/2018] [Indexed: 06/08/2023]
Abstract
The flexibility and unexpected dynamic behavior of a third-generation metal-organic framework are described for the first time. The synthetic strategy is based on the flexibility and spherical shape of dipyridyl-based carborane linkers that act as pillars between rigid Co/BTB (BTB: 1,3,5-benzenetricarboxylate) layers, providing a 3D porous structure (1). A phase transition of the solid can be induced to generate a new, nonporous 2D structure (2) without any loss of the carborane linkers. The structural transformation is visualized by snapshots of the multistep single-crystal-to-single-crystal transformation by single-crystal and powder X-ray diffraction. Poor hydrogen bond acceptors such as MeOH, CHCl3 or supercritical CO2 induce such a 3D to 2D transformation. Remarkably, the transformation is reversible and the 2D phase 2 is further converted back into 1 by heating in dimethylformamide. The energy requirements involved in such processes are investigated using periodic density functional theory calculations. As a proof of concept for potential applications, encapsulation of C60 is achieved by trapping this molecule during the reversible 2D to 3D phase transition, whereas no adsorption is observed by straight solvent diffusion into the pores of the 3D phase.
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Affiliation(s)
- Fangchang Tan
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Ana López-Periago
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Mark E Light
- Department of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Jordi Cirera
- Departament de Química Inorgànica i Orgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, Barcelona, 08028, Spain
| | - Eliseo Ruiz
- Departament de Química Inorgànica i Orgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, Barcelona, 08028, Spain
| | - Alejandro Borrás
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Concepción Domingo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - José Giner Planas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
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224
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Guo J, Zhang Y, Zhu Y, Long C, Zhao M, He M, Zhang X, Lv J, Han B, Tang Z. Ultrathin Chiral Metal-Organic-Framework Nanosheets for Efficient Enantioselective Separation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803125] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jun Guo
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
- Center for Nanochemistry; Peking University; Beijing 100871 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yin Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
- Center for Nanochemistry; Peking University; Beijing 100871 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yanfei Zhu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Chang Long
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Meiting Zhao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Meng He
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Xiaofei Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Jiawei Lv
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Bing Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication; CAS Center for Excellence in Nanoscience; National Center for Nanoscience and Technology; Beijing 100190 China
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225
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Ultrathin Chiral Metal-Organic-Framework Nanosheets for Efficient Enantioselective Separation. Angew Chem Int Ed Engl 2018; 57:6873-6877. [DOI: 10.1002/anie.201803125] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 11/07/2022]
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226
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Li Y, Liu H, Wang H, Qiu J, Zhang X. GO-guided direct growth of highly oriented metal-organic framework nanosheet membranes for H 2/CO 2 separation. Chem Sci 2018; 9:4132-4141. [PMID: 29780543 PMCID: PMC5941280 DOI: 10.1039/c7sc04815g] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 04/01/2018] [Indexed: 11/21/2022] Open
Abstract
A highly oriented 2D nanosheet metal–organic framework membrane is fabricated by a direct growth strategy.
Highly oriented, ultrathin metal–organic framework (MOF) membranes are attractive for practical separation applications, but the scalable preparation of such membranes especially on standard tubular supports remains a huge challenge. Here we report a novel bottom-up strategy for directly growing a highly oriented Zn2(bIm)4 (bIm = benzimidazole) ZIF nanosheet tubular membrane, based on graphene oxide (GO) guided self-conversion of ZnO nanoparticles (NPs). Through our approach, a thin layer of ZnO NPs confined between a substrate and a GO ultrathin layer self-converts into a highly oriented Zn2(bIm)4 nanosheet membrane. The resulting membrane with a thickness of around 200 nm demonstrates excellent H2/CO2 gas separation performance with a H2 performance of 1.4 × 10–7 mol m–2 s–1 Pa–1 and an ideal separation selectivity of about 106. The method can be easily scaled up and extended to the synthesis of other types of Zn-based MOF nanosheet membranes. Importantly, our strategy is particularly suitable for the large-scale fabrication of tubular MOF membranes that has not been possible through other methods.
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Affiliation(s)
- Yujia Li
- State Key Laboratory of Fine Chemicals , School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , China .
| | - Haiou Liu
- State Key Laboratory of Fine Chemicals , School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , China .
| | - Huanting Wang
- Department of Chemical Engineering , Monash University , Clayton , Victoria 3800 , Australia
| | - Jieshan Qiu
- State Key Laboratory of Fine Chemicals , School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , China .
| | - Xiongfu Zhang
- State Key Laboratory of Fine Chemicals , School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , China .
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227
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Han LJ, Zheng D, Chen SG, Zheng HG, Ma J. A Highly Solvent-Stable Metal-Organic Framework Nanosheet: Morphology Control, Exfoliation, and Luminescent Property. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703873. [PMID: 29611305 DOI: 10.1002/smll.201703873] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/18/2018] [Indexed: 05/24/2023]
Abstract
Compared to bulk metal-organic framework (MOF), 2D MOF nanosheets have gained intensive research attention due to their ultrathin thickness and large surface area with highly accessible active sites. However, structural deterioration and morphological damage have impeded producing high-quality MOF nanosheets during exfoliation. Here, first a new layered bulk MOF ZSB-1 is synthesized and several solvents such as isopropanol, methanol, n-hexyl alcohol, and N,N-dimethylformamide are surveyed to examine their performance for the exfoliation of layered ZSB-1. As a result, a highly solvent-stable metal-organic framework rectangular nanosheet retaining undamaged morphology is obtained by the soft-physical method in n-hexyl alcohol. Theoretical simulations reveal that the strong interaction energy between n-hexyl alcohol and MOF layers is responsible for the best exfoliation performance of making the bulk MOF into nanosheets. In addition, ZSB-1 shows a tunable fluorescence peak position, fluorescent lifetime, and quantum yield by simply changing the solvent and morphology. Besides, the ZSB-1 was selected as a fluorescence sensor to detect metal ions, and ZSB-1 nanosheet exhibits excellent sensing ability for Fe3+ . It is worth noting that the ZSB-1 nanosheet has better detection limit performance of 0.054 × 10-6 m than that of its bulk counterpart.
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Affiliation(s)
- Li-Juan Han
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
- Key Laboratory of Inorganic Chemistry in Universities of Shandong, Department of Chemistry and Chemical Engineering, Jining University, Qufu, 273155, P. R. China
| | - Dong Zheng
- Institution of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Shu-Guang Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - He-Gen Zheng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Jing Ma
- Institution of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
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228
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229
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Shete M, Kumar P, Bachman JE, Ma X, Smith ZP, Xu W, Mkhoyan KA, Long JR, Tsapatsis M. On the direct synthesis of Cu(BDC) MOF nanosheets and their performance in mixed matrix membranes. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.002] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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230
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Shan M, Seoane B, Andres-Garcia E, Kapteijn F, Gascon J. Mixed-matrix membranes containing an azine-linked covalent organic framework: Influence of the polymeric matrix on post-combustion CO2-capture. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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231
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Yang Y, Goh K, Wang R, Bae TH. High-performance nanocomposite membranes realized by efficient molecular sieving with CuBDC nanosheets. Chem Commun (Camb) 2018; 53:4254-4257. [PMID: 28361151 DOI: 10.1039/c7cc00295e] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional (2-D) CuBDC nanosheets (ns-CuBDC) with high-aspect-ratios were deliberately paired with polymers possessing high free volumes to fabricate high performance gas separation membranes. Owing to the molecular sieving effect of the filler, a small ns-CuBDC loading (2-4 wt%) could significantly improve the CO2/CH4 selectivities of membranes, resulting in performances that surpass the upper bound limit for polymer membranes.
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Affiliation(s)
- Yanqin Yang
- Singapore Membrane Technology Centre, Nanyang Technological University, Singapore 637141, Singapore.
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232
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Wu Y, Wu P, Chao Y, He J, Li H, Lu L, Jiang W, Zhang B, Li H, Zhu W. Gas-exfoliated porous monolayer boron nitride for enhanced aerobic oxidative desulfurization performance. NANOTECHNOLOGY 2018; 29:025604. [PMID: 29155413 DOI: 10.1088/1361-6528/aa9bc7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Hexagonal boron nitride has been regarded to be an efficient catalyst in aerobic oxidation fields, but limited by the less-exposed active sites. In this contribution, we proposed a simple green liquid nitrogen gas exfoliation strategy for preparation of porous monolayer nanosheets (BN-1). Owing to the reduced layer numbers, decreased lateral sizes and artificially-constructed pores, increased exposure of active sites was expected, further contributed to an enhanced aerobic oxidative desulfurization (ODS) performance up to ∼98% of sulfur removal, achieving ultra-deep desulfurization. This work not only introduced an excellent catalyst for aerobic ODS, but also provided a strategy for construction of some other highly-efficient monolayer two-dimensional materials for enhanced catalytic performance.
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Affiliation(s)
- Yingcheng Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, People's Republic of China
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233
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Ding L, Wei Y, Li L, Zhang T, Wang H, Xue J, Ding LX, Wang S, Caro J, Gogotsi Y. MXene molecular sieving membranes for highly efficient gas separation. Nat Commun 2018; 9:155. [PMID: 29323113 PMCID: PMC5765169 DOI: 10.1038/s41467-017-02529-6] [Citation(s) in RCA: 411] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 12/06/2017] [Indexed: 11/09/2022] Open
Abstract
Molecular sieving membranes with sufficient and uniform nanochannels that break the permeability-selectivity trade-off are desirable for energy-efficient gas separation, and the arising two-dimensional (2D) materials provide new routes for membrane development. However, for 2D lamellar membranes, disordered interlayer nanochannels for mass transport are usually formed between randomly stacked neighboring nanosheets, which is obstructive for highly efficient separation. Therefore, manufacturing lamellar membranes with highly ordered nanochannel structures for fast and precise molecular sieving is still challenging. Here, we report on lamellar stacked MXene membranes with aligned and regular subnanometer channels, taking advantage of the abundant surface-terminating groups on the MXene nanosheets, which exhibit excellent gas separation performance with H2 permeability >2200 Barrer and H2/CO2 selectivity >160, superior to the state-of-the-art membranes. The results of molecular dynamics simulations quantitatively support the experiments, confirming the subnanometer interlayer spacing between the neighboring MXene nanosheets as molecular sieving channels for gas separation.
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Affiliation(s)
- Li Ding
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Yanying Wei
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Libo Li
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Tao Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Haihui Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China.
| | - Jian Xue
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
- Institute of Physical Chemistry and Electrochemistry, Leibniz University of Hannover, Callinstrasse 3A, 30167, Hannover, Germany
| | - Liang-Xin Ding
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Suqing Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, China
| | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry, Leibniz University of Hannover, Callinstrasse 3A, 30167, Hannover, Germany
| | - Yury Gogotsi
- Department of Materials Science and Engineering, and A. J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA, 19104, USA.
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, 130012, Changchun, China.
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234
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Zhao M, Huang Y, Peng Y, Huang Z, Ma Q, Zhang H. Two-dimensional metal–organic framework nanosheets: synthesis and applications. Chem Soc Rev 2018; 47:6267-6295. [DOI: 10.1039/c8cs00268a] [Citation(s) in RCA: 733] [Impact Index Per Article: 122.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Synthesis and applications of two-dimensional metal–organic framework nanosheets and their composites are summarized.
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Affiliation(s)
- Meiting Zhao
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Ying Huang
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Yongwu Peng
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Zhiqi Huang
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Qinglang Ma
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Hua Zhang
- Center for Programmable Materials
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
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235
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Galizia M, Chi WS, Smith ZP, Merkel TC, Baker RW, Freeman BD. 50th Anniversary Perspective: Polymers and Mixed Matrix Membranes for Gas and Vapor Separation: A Review and Prospective Opportunities. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01718] [Citation(s) in RCA: 543] [Impact Index Per Article: 77.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Michele Galizia
- Department
of Chemical, Biological and Materials Engineering, The University of Oklahoma, 100E Boyd Street, Norman, Oklahoma 73019, United States
| | - Won Seok Chi
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Zachary P. Smith
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Timothy C. Merkel
- Membrane Technology
and Research, Inc., 39630 Eureka Drive, Newark, California 94560, United States
| | - Richard W. Baker
- Membrane Technology
and Research, Inc., 39630 Eureka Drive, Newark, California 94560, United States
| | - Benny D. Freeman
- John
J. McKetta Jr. Department of Chemical Engineering, The University of Texas at Austin, 200 E. Dean Keeton Street, Austin, Texas 78712, United States
- Center
for Energy and Environmental Resources, The University of Texas at Austin, 10100 Burnet Road, Building 133 (CEER), Austin, Texas 78758, United States
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236
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Ultrathin mixed matrix membranes containing two-dimensional metal-organic framework nanosheets for efficient CO 2 /CH 4 separation. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.06.011] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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237
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Zhu X, Tian C, Do-Thanh CL, Dai S. Two-Dimensional Materials as Prospective Scaffolds for Mixed-Matrix Membrane-Based CO 2 Separation. CHEMSUSCHEM 2017; 10:3304-3316. [PMID: 28796390 DOI: 10.1002/cssc.201700801] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Indexed: 06/07/2023]
Abstract
Membrane-based CO2 separation technology plays a significant role in environmental remediation and clean energy. Two-dimensional (2D) materials with atomically precise structures have emerged as prospective scaffolds to develop mixed-matrix membranes (MMMs) for gas separation. Summarized in this perspective review are the latest breakthrough studies in the synthesis of 2D-material-based MMMs to separate CO2 from gas mixtures. 2D materials including graphene oxide (GO), metal-organic framework (MOF)-derived nanosheets, covalent organic frameworks (COFs), and transition metal dichalcogenides (TMDs), as fascinating building blocks, have been comprehensively summarized, together with a focus on synthetic processes and gas separation properties. Challenges and the latest advances in the manufacture of novel synthetic 2D materials are briefly discussed to foresee emerging opportunities for the development of new generations of 2D-material-based MMMs.
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Affiliation(s)
- Xiang Zhu
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37916, USA
| | - Chengcheng Tian
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Chi-Linh Do-Thanh
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37916, USA
| | - Sheng Dai
- Department of Chemistry, University of Tennessee, Knoxville, TN, 37916, USA
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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238
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Guo PF, Zhang DD, Guo ZY, Chen ML, Wang JH. Copper-Decorated Titanate Nanosheets: Novel Homogeneous Monolayers with a Superior Capacity for Selective Isolation of Hemoglobin. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28273-28280. [PMID: 28786285 DOI: 10.1021/acsami.7b08942] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Novel unilamellar and homogeneous titanate nanosheets were prepared by anchoring (3-aminopropyl)triethoxysilane (APTES) and chelating copper ions, also know by the short form Cu-APTES-TiNSs. The nanosheets were uniform two-dimensional lamellas/monolayers with a thickness of 1.9 nm, and they were further characterized by atomic force microscopy, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectra, X-ray diffraction, X-ray photoelectron spectroscopy, inductively coupled plasma mass spectrometry, and N2 adsorption-desorption. The copper-decorated titanate nanosheets possess a copper content of 4.28 ± 0.14% and exhibit a favorable selectivity to the adsorption of hemoglobin, with a considerable capacity of 5314.2 mg g-1. The adsorbed hemoglobin is easily collected with a recovery rate of 91.3% by using 0.5% w/v sodium dodecyl sulfate as an eluent. Circular dichroism spectra confirmed that virtually no conformational alteration is observed for hemoglobin. Cu-APTES-TiNSs are further applied for the selective adsorption of hemoglobin from the human whole blood.
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Affiliation(s)
- Peng-Fei Guo
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Dan-Dan Zhang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Zhi-Yong Guo
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Ming-Li Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University , Box 332, Shenyang 110819, China
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239
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Ang H, Hong L. Polycationic Polymer-Regulated Assembling of 2D MOF Nanosheets for High-Performance Nanofiltration. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28079-28088. [PMID: 28752999 DOI: 10.1021/acsami.7b08383] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Herein, a two-dimensional metal-organic framework (2D MOF) made of iron porphyrin complex (TCP(Fe)) interconnected with divalent metal ion (M = Zn, Co, and Cu) is used to construct a selective layer, which is explored as an ultrafast and energy-saving nanofiltration (NF) membrane for removing organic dyes from water. Among the layered 2D M-TCP(Fe) membranes, Zn-TCP(Fe) membranes display the highest water permeance, which is 3 times higher than graphene-based membranes with similar rejection. To further improve the separation performances, we utilize polycations to anchor the periphery carboxylic groups of nanosheets, regulating the assembly of 2D Zn-TCP(Fe) nanosheets to produce a new class of crack-free selective layer possessing ultrathin and highly ordered nanochannels for efficient NF. Benefiting from these structural features, our polycation-regulated 2D Zn-TCP(Fe) membranes could offer ultrahigh permeance of 4243 L m-2 h-1 bar-1 (2-fold higher than its pristine) and excellent rejection rates (over 90%) for organic dye with size larger than 0.8 × 1.1 nm. This permeance value is about 2 orders of magnitude higher than the commercial polymeric NF membrane. Additionally, the membranes demonstrate 20-40% salt rejection.
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Affiliation(s)
- Huixiang Ang
- Department of Chemical and Biomolecular Engineering, National University of Singapore , Singapore 117585, Singapore
| | - Liang Hong
- Department of Chemical and Biomolecular Engineering, National University of Singapore , Singapore 117585, Singapore
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240
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Byeon M, Lee E, Park JW. Precise Solution-Based Deposition of Ultrathin Covalent Molecular Networks by Layer-by-Layer Cross-Linking Polymerization of Tetra- and Bifunctional Amine/Isocyanate Pairs. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Minseon Byeon
- School of Materials Science
and Engineering and Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea
| | - Eunhye Lee
- School of Materials Science
and Engineering and Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea
| | - Ji-Woong Park
- School of Materials Science
and Engineering and Research Institute for Solar and Sustainable Energies, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea
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241
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Kutzscher C, Gelbert A, Ehrling S, Schenk C, Senkovska I, Kaskel S. Amine assisted top-down delamination of the two-dimensional metal–organic framework Cu2(bdc)2. Dalton Trans 2017; 46:16480-16484. [DOI: 10.1039/c7dt03890a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two different strategies of amine assisted delamination of 2D MOFs were developed.
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Affiliation(s)
- Christel Kutzscher
- Department of Inorganic Chemistry
- Technische Universität Dresden
- D-01069 Dresden
- Germany
| | - André Gelbert
- Department of Inorganic Chemistry
- Technische Universität Dresden
- D-01069 Dresden
- Germany
| | - Sebastian Ehrling
- Department of Inorganic Chemistry
- Technische Universität Dresden
- D-01069 Dresden
- Germany
| | - Claudia Schenk
- Department of Inorganic Chemistry
- Technische Universität Dresden
- D-01069 Dresden
- Germany
| | - Irena Senkovska
- Department of Inorganic Chemistry
- Technische Universität Dresden
- D-01069 Dresden
- Germany
| | - Stefan Kaskel
- Department of Inorganic Chemistry
- Technische Universität Dresden
- D-01069 Dresden
- Germany
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