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Liu G, Cheng L, Chen G, Liang F, Liu G, Jin W. Pebax‐Based Membrane Filled with Two‐Dimensional Mxene Nanosheets for Efficient CO
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Capture. Chem Asian J 2019; 15:2364-2370. [DOI: 10.1002/asia.201901433] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/14/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Guozhen Liu
- State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech University 30 Puzhu Road Nanjing 211816 P. R. China
| | - Long Cheng
- State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech University 30 Puzhu Road Nanjing 211816 P. R. China
| | - Guining Chen
- State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech University 30 Puzhu Road Nanjing 211816 P. R. China
| | - Feng Liang
- State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech University 30 Puzhu Road Nanjing 211816 P. R. China
| | - Gongping Liu
- State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech University 30 Puzhu Road Nanjing 211816 P. R. China
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Chemical EngineeringNanjing Tech University 30 Puzhu Road Nanjing 211816 P. R. China
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Petukhov DI, Chumakov AP, Kan AS, Lebedev VA, Eliseev AA, Konovalov OV, Eliseev AA. Spontaneous MXene monolayer assembly at the liquid-air interface. NANOSCALE 2019; 11:9980-9986. [PMID: 31074468 DOI: 10.1039/c9nr00525k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Here we report on the spontaneous assembly of Ti3C2Tx MXene flakes into monolayer films at the liquid-air interface. According to X-ray reflectivity and grazing incidence X-ray fluorescence both the structure of the layers and assembly kinetics depends on the pH value of the solution. At pH > 4 MXene flakes form a single ∼1.5 nm thick layer carrying a negative charge, while in the acidic medium the layer contains coordinated anions with the formation of the Braq-/Ti3C2Tx/subphase interface. The surface layer compression allows the assembling of MXene flakes into a dense monolayer films with the surface coverage of up to 96% and surface pressure exceeding 40 mN m-1 in the case of the acidic subphase. The films can readily be transferred onto solid substrates by the conventional Langmuir-Blodgett approach or modified by surfactants to form MXene/surfactant composite films.
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Affiliation(s)
- D I Petukhov
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1-3, Moscow, 119991, Russia and Department of Materials Science, Lomonosov Moscow State University, 1-73 Leninskiye gory, Moscow, 119991, Russia
| | - A P Chumakov
- ESRF - The European Synchrotron. 71, Avenue des Martyrs, 38043 Grenoble, France
| | - A S Kan
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1-3, Moscow, 119991, Russia
| | - V A Lebedev
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1-3, Moscow, 119991, Russia
| | - Artem A Eliseev
- Department of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1-3, Moscow, 119991, Russia and Department of Materials Science, Lomonosov Moscow State University, 1-73 Leninskiye gory, Moscow, 119991, Russia
| | - O V Konovalov
- ESRF - The European Synchrotron. 71, Avenue des Martyrs, 38043 Grenoble, France
| | - Andrei A Eliseev
- Department of Materials Science, Lomonosov Moscow State University, 1-73 Leninskiye gory, Moscow, 119991, Russia
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