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Dong Z, Fan Y, Meng X, Jin Y, Song J, Wang X, Yang N, Sunarso J, Liu S. A vertically-stacked MXene/rGO composite membrane for highly efficient H 2/CO 2 separation. Chem Commun (Camb) 2024; 60:5177-5180. [PMID: 38647014 DOI: 10.1039/d4cc00481g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
A vertically-stacked MXene/rGO composite membrane with ultrashort transport channels is reported here, which demonstrated outstanding molecular sieving, i.e., H2/CO2 selectivity of up to 83 together with high H2 permeance of 2.7 × 10-7 mol m-2 s-1 Pa-1 at 120 °C, highlighting its applicability for H2/CO2 separation in CO2 capture and sequestration.
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Affiliation(s)
- Zhaorui Dong
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P.R. China.
| | - Yiyi Fan
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P.R. China.
| | - Xiuxia Meng
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P.R. China.
| | - Yun Jin
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P.R. China.
| | - Jian Song
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P.R. China.
| | - Xiaobin Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P.R. China.
| | - Naitao Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, P.R. China.
| | - Jaka Sunarso
- Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Kuching 93350, Sarawak, Malaysia.
| | - Shaomin Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, Department of Chemical Engineering, Tiangong University, Tianjin 300387, P.R. China
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2
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Li J, Fan X, Chen J, Shi G, Liu X. Enhancement of gas adsorption on transition metal ion-modified graphene using DFT calculations. J Mol Model 2024; 30:72. [PMID: 38366130 DOI: 10.1007/s00894-024-05872-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/06/2024] [Indexed: 02/18/2024]
Abstract
CONTEXT Graphene-based nanomaterial was widely used in gas sensors, detection, and separation. However, weak adsorption and low selectivity of the pristine graphene used for gas sensors are major problems. Here, using density functional theory (DFT) calculations, we reported the significant increase of four gas molecules (N2, CO2, C2H2, and C2H4) adsorption on the transition metal ion (Fe3+, Co2+, Ni2+)-modified graphene complex (Fe3+/Co2+/Ni2+-G) comparing to be absorbed on the pristine graphene (G). Moreover, the Co2+-G is suitable for the selective separation of C2H4/C2H2 due to the larger adsorption energy difference (8.5 kcal/mol) between them. The addition of transition metal ions also decreased the HOMO-LUMO gap of the systems, which benefits the enhancement of electrical conductivity. This suggests that the transition metal ion-modified graphene can be used to distinguish the different gas molecule's adsorption, facilitating the design of graphene-based gas sensors and selective separation. METHODS All the density functional theory (DFT) calculations were performed by B3LYP with the GD3 dispersion method using Gaussian 16 software. The basis set 6-31G(d) was used for C, H, O, and N atoms, and Lanl2DZ was used for transition metal ions (Fe3+, Co2+, Ni2+). The DOS analysis and energy decomposition analysis were performed using the Multiwfn program.
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Affiliation(s)
- Jie Li
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Xiaozhen Fan
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Junjie Chen
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Guosheng Shi
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China
| | - Xing Liu
- Shanghai Applied Radiation Institute, State Key Lab. Advanced Special Steel, Shanghai University, Shanghai, 200444, China.
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3
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Zhang C, Fan L, Kang Z, Sun D. Solution processing of crystalline porous material based membranes for CO 2 separation. Chem Commun (Camb) 2024. [PMID: 38273772 DOI: 10.1039/d3cc05545k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
The carbon emission problem is a significant challenge in today's society, which has led to severe global climate issues. Membrane-based separation technology has gained considerable interest in CO2 separation due to its simplicity, environmental friendliness, and energy efficiency. Crystalline porous materials (CPMs), such as zeolites, metal-organic frameworks, covalent organic frameworks, hydrogen-bonded organic frameworks, and porous organic cages, hold great promise for advanced CO2 separation membranes because of their ordered and customizable pore structures. However, the preparation of defect-free and large-area crystalline porous material (CPM)-based membranes remains challenging, limiting their practical use in CO2 separation. To address this challenge, the solution-processing method, commonly employed in commercial polymer preparation, has been adapted for CPM membranes in recent years. Nanosheets, spheres, molecular cages, and even organic monomers, depending on the CPM type, are dissolved in suitable solvents and processed into continuous membranes for CO2 separation. This feature article provides an overview of the recent advancements in the solution processing of CPM membranes. It summarizes the differences among the solution-processing methods used for forming various CPM membranes, highlighting the key factors for achieving continuous membranes. The article also summarizes and discusses the CO2 separation performance of these membranes. Furthermore, it addresses the current issues and proposes future research directions in this field. Overall, this feature article aims to shed light on the development of solution-processing techniques for CPM membranes, facilitating their practical application in CO2 separation.
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Affiliation(s)
- Caiyan Zhang
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Lili Fan
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Zixi Kang
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, China
| | - Daofeng Sun
- School of Materials Science and Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong 266580, China
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4
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Moghadam F, Zhai M, Zouaoui T, Li K. Hybrid graphene oxide membranes with regulated water and ion permeation channels via functional materials. Curr Opin Chem Eng 2023. [DOI: 10.1016/j.coche.2023.100907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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5
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Ji D, Lee Y, Nishina Y, Kamiya K, Daiyan R, Chu D, Wen X, Yoshimura M, Kumar P, Andreeva DV, Novoselov KS, Lee GH, Joshi R, Foller T. Angstrom-Confined Electrochemical Synthesis of Sub-Unit-Cell Non-Van Der Waals 2D Metal Oxides. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2301506. [PMID: 37116867 DOI: 10.1002/adma.202301506] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/12/2023] [Indexed: 06/19/2023]
Abstract
Bottom-up electrochemical synthesis of atomically thin materials is desirable yet challenging, especially for non-vanderWaals (non-vdW) materials. Thicknesses below a few nanometers have not been reported yet, posing the question how thin can non-vdW materials be electrochemically synthesized. This is important as materials with (sub-)unit-cell thickness often show remarkably different properties compared to their bulk form or thin films of several nanometers thickness. Here, a straightforward electrochemical method utilizing the angstrom-confinement of laminar reduced graphene oxide (rGO) nanochannels is introduced to obtain a centimeter-scale network of atomically thin (<4.3 Å) 2D-transition metal oxides (2D-TMO). The angstrom-confinement provides a thickness limitation, forcing sub-unit-cell growth of 2D-TMO with oxygen and metal vacancies. It is showcased that Cr2 O3 , a material without significant catalytic activity for the oxygen evolution reaction (OER) in bulk form, can be activated as a high-performing catalyst if synthesized in the 2D sub-unit-cell form. This method displays the high activity of sub-unit-cell form while retaining the stability of bulk form, promising to yield unexplored fundamental science and applications. It is shown that while retaining the advantages of bottom-up electrochemical synthesis, like simplicity, high yield, and mild conditions, the thickness of TMO can be limited to sub-unit-cell dimensions.
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Affiliation(s)
- Dali Ji
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yunah Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea
| | - Yuta Nishina
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Kazuhide Kamiya
- Research Center for Solar Energy Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Rahman Daiyan
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Dewei Chu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Xinyue Wen
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Masamichi Yoshimura
- Graduate School of Engineering, Toyota Technological Institute, Nagoya, 468-8511, Japan
| | - Priyank Kumar
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Daria V Andreeva
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117575, Singapore
| | - Kostya S Novoselov
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117575, Singapore
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Korea
| | - Rakesh Joshi
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Tobias Foller
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
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6
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Wang R, Qian J, Chen X, Low ZX, Chen Y, Ma H, Wu HA, Doherty CM, Acharya D, Xie Z, Hill MR, Shen W, Wang F, Wang H. Pyro-layered heterostructured nanosheet membrane for hydrogen separation. Nat Commun 2023; 14:2161. [PMID: 37061522 PMCID: PMC10105703 DOI: 10.1038/s41467-023-37932-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 04/04/2023] [Indexed: 04/17/2023] Open
Abstract
Engineering different two-dimensional materials into heterostructured membranes with unique physiochemical properties and molecular sieving channels offers an effective way to design membranes for fast and selective gas molecule transport. Here we develop a simple and versatile pyro-layering approach to fabricate heterostructured membranes from boron nitride nanosheets as the main scaffold and graphene nanosheets derived from a chitosan precursor as the filler. The rearrangement of the graphene nanosheets adjoining the boron nitride nanosheets during the pyro-layering treatment forms precise in-plane slit-like nanochannels and a plane-to-plane spacing of ~3.0 Å, thereby endowing specific gas transport pathways for selective hydrogen transport. The heterostructured membrane shows a high H2 permeability of 849 Barrer, with a H2/CO2 selectivity of 290. This facile and scalable technique holds great promise for the fabrication of heterostructures as next-generation membranes for enhancing the efficiency of gas separation and purification processes.
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Affiliation(s)
- Ruoxin Wang
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Jianhao Qian
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China
| | - Xiaofang Chen
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Ze-Xian Low
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia.
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China.
| | - Yu Chen
- Monash Center for Electron Microscopy, Monash University, Clayton, Victoria, 3800, Australia
| | - Hongyu Ma
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Heng-An Wu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China
| | - Cara M Doherty
- CSIRO Manufacturing, Private Bag 10, Clayton South, Victoria, 3169, Australia
| | - Durga Acharya
- CSIRO Manufacturing, Private Bag 10, Clayton South, Victoria, 3169, Australia
| | - Zongli Xie
- CSIRO Manufacturing, Private Bag 10, Clayton South, Victoria, 3169, Australia
| | - Matthew R Hill
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia
- CSIRO Manufacturing, Private Bag 10, Clayton South, Victoria, 3169, Australia
| | - Wei Shen
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Fengchao Wang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China.
| | - Huanting Wang
- Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria, 3800, Australia.
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7
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Membranes constructed with zero-dimension carbon quantum dots for CO2 separation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121086] [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]
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8
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Cheng L, Guo Y, Liu Q, Liu G, Li R, Chen X, Zeng H, Liu G, Jin W. Metal Confined in 2D Membranes for Molecular Recognition and Sieving towards Ethylene/Ethane Separation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206349. [PMID: 36039875 DOI: 10.1002/adma.202206349] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Membranes with nanochannels have exhibited great potential in molecular separations, while it remains a great challenge to separate molecules with very close physical properties and kinetic diameters (e.g., ethylene/ethane) owing to the lack of size-sieving property and specific affinity. Herein, a metal confined 2D sub-nanometer channel is reported to successfully discriminate ethylene over ethane via molecular recognition and sieving. Transition metal cations are paired with polyelectrolyte anions to achieve high dissociation activity, forming reversible complexation with ethylene. Aberration-corrected transmission electron microscopy observes that the metals with size of ≈2 nm are uniformly confined in graphene oxide (GO) interlayer channels with average height of ≈0.44 nm, thereby cooperating the size-sieving effect with a molecular recognition ability toward ethylene and stimulating its selective transport over ethane. The resulting ultrathin (≈60 nm) membrane exhibits superior ethylene/ethane separation performance far beyond the polymeric upper-bound. Density functional theory (DFT) and molecular dynamic simulations reveal that the metal@2D interlayer channel provides a molecular recognition pathway for selective gas transport. The proposed metal confined in 2D channel with molecular recognition and sieving properties would have broad application in other related fields such as single-atom catalysis, sensor and energy conversion.
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Affiliation(s)
- Long Cheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Yanan Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Quan Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Guozhen Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Renhao Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Xi Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Hui Zeng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Gongping Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
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9
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Dai L, Huang K, Xiong Z, Qu K, Wang Y, Pang S, Zhang D, Xu F, Lei L, Guo X, Xu Z. Two-dimensional heterogenous channels incorporated by enhanced-surface hydrophilic hollow ZIF-8 nanocrystals for ultrafast water permeation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120943] [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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10
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Understanding water transport through graphene-based nanochannels via experimental control of slip length. Nat Commun 2022; 13:5690. [PMID: 36171227 PMCID: PMC9519754 DOI: 10.1038/s41467-022-33456-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 09/15/2022] [Indexed: 11/08/2022] Open
Abstract
The water transport along graphene-based nanochannels has gained significant interest. However, experimental access to the influence of defects and impurities on transport poses a critical knowledge gap. Here, we investigate the water transport of cation intercalated graphene oxide membranes. The cations act as water-attracting impurities on the channel walls. Via water transport experiments, we show that the slip length of the nanochannels decay exponentially with the hydrated diameter of the intercalated cations, confirming that water transport is governed by the interaction between water molecules and the impurities on the channel wall. The exponential decay of slip length approximates non-slip conditions. This offers experimental support for the use of the Hagen-Poiseuille equation in graphene-based nanochannels, which was previously only confirmed by simulations. Our study gives valuable feedback to theoretical predictions of the water transport along graphene-based channels with water-attracting impurities.
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11
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Zheng J, Wang R, Ye Q, Chen B, Zhu X. Multilayered graphene oxide membrane with precisely controlled interlayer spacing for separation of molecules with very close molecular weights. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Song Y, Peng C, Iqbal Z, Sirkar KK, Peterson GW, Mahle JJ, Buchanan JH. Graphene Oxide and Metal-Organic Framework-Based Breathable Barrier Membranes for Toxic Vapors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31321-31331. [PMID: 35771504 DOI: 10.1021/acsami.2c07989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Garments protective against chemical warfare agents (CWAs) or accidently released toxic chemicals must block the transport of toxic gases/vapors for a substantial time and allow moisture transport for breathability. These demands are challenging: either the barriers block CWAs effectively but have poor breathability or barriers have excellent breathability but cannot block CWAs well. Existing protective garments employ large amounts of active carbon, making them quite heavy. Metal-organic framework (MOF)-based adsorbents are being investigated as sorbents for CWAs. Breathable laminate of graphene oxide (GO) flakes supported on a porous membrane reduces permeation rates of CWA simulants substantially. We developed a multilayered membrane-based flexible barrier: GO laminate-based membrane over a MOF nanocrystal-filled expanded polytetrafluorethylene (ePTFE) membrane having submicrometer pores. The GO laminate-based layer developed a steady breakthrough concentration level almost 2 orders of magnitude below the usual breakthrough level. This highly reduced level of CWA was blocked by the MOF nanocrystal-filled membrane substrate layer over a highly extended period. We demonstrated the blocking of CWAs, mustard (HD), soman (GD), a sarin simulant [dimethyl methyl phosphonate (DMMP)], and ammonia for an extended period while the moisture transmission rate was substantial. The times for complete blockage of ammonia, HD, GD, and DMMP were 2750 min, 1075 min, 176 min, and 7 days, respectively. This remarkable performance resulted from a very low steady-state penetrant permeation through GO-laminate membrane and substantial penetrant sorption by MOF nanocrystals; furthermore, both layers show high moisture vapor transmission.
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Affiliation(s)
- Yufeng Song
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | - Cheng Peng
- Materials Science and Engineering, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | - Zafar Iqbal
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | - Kamalesh K Sirkar
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, University Heights, Newark, New Jersey 07102, United States
| | - Gregory W Peterson
- CBR Filtration Branch, R&T Directorate DEVCOM Chemical Biological Center, U.S. Army Futures Command; 8567 Ricketts Point Road, Bldg. E3549, Aberdeen Proving Ground, Maryland 21010, United States
| | - John J Mahle
- CBR Filtration Branch, R&T Directorate DEVCOM Chemical Biological Center, U.S. Army Futures Command; 8567 Ricketts Point Road, Bldg. E3549, Aberdeen Proving Ground, Maryland 21010, United States
| | - James H Buchanan
- CBR Filtration Branch, R&T Directorate DEVCOM Chemical Biological Center, U.S. Army Futures Command; 8567 Ricketts Point Road, Bldg. E3549, Aberdeen Proving Ground, Maryland 21010, United States
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13
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Filtration with Multiple Species of Particles. Transp Porous Media 2022. [DOI: 10.1007/s11242-022-01810-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AbstractMembrane filtration of feed containing multiple species of particles is a common process in the industrial setting. In this work, we propose a model for filtration of a suspension containing multiple particle species (concrete examples of our model are shown in two and three species), each with different affinities for the material of the porous filter membrane. Using the pore shape within the membrane as a design objective, we formulate a number of optimization problems pertaining to effective separation of desired and undesired particles in the special case of two-particle species and we present results showing how properties such as feed composition affect the optimal filter design. In addition, we propose a novel multi-stage filtration strategy, which provides a significant mass yield improvement for the desired particles, and, surprisingly, higher purity of the product as well.
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14
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Hu CC, Lin CW, Hu CP, Keshebo DL, Huang SH, Hung WS, Lee KR, Lai JY. Carbon dioxide enrichment of PDMS/PSf composite membranes for solving the greenhouse effect and food crisis. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Zhang M, Li X, Yang Y, Li T, Luo H, Wen L, Qin L. Multilayer Self-Assemblies for Fabricating Graphene-Supported Single-Atomic Metal via Microwave-Assisted Emulsion Micelle. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201291. [PMID: 35560977 DOI: 10.1002/smll.202201291] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Inspired by molecular self-assemblies in nature, this article reports a versatile strategy for confined encapsulation of single-atomic metal into high-quality rGO nanosheets by the microwave-assisted emulsion micelle method. Multilayer self-assembly of organometallics-surfactants micelles into the interlayer of nanosheets can not only promote microwave exfoliation and reduction of GO but also precisely control loading and distribution of single-metal atoms. With this synthetic strategy, the simultaneous trinity of exfoliation, reduction, and composition are achieved for 1 min. Experimental results and density functional theory calculations demonstrate that graphene-supported FeN4 O2 sites exhibit optimal binding energy toward superior selective adsorption (adsorption amount of 1975.6 mg g-1 with separation efficiency of 97.6%) and electrocatalytic oxidation (TOFs as high as 1.31 min-1 ). This work provides a simple and efficient avenue for the large-scale preparation of single-atomic metal composites in environmental and energy fields.
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Affiliation(s)
- Mengyuan Zhang
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xiaohui Li
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Yihui Yang
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Tiejun Li
- State Key Laboratory of Sustainable Utilization Technology Research of Marine Fishery Resources, Zhejiang Marine Fisheries Research Institute, Zhoushan, 316021, P. R. China
| | - Huili Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, P. R. China
| | - Luhong Wen
- Research Institute of Advanced Technologies, Ningbo University, Ningbo, 315211, P. R. China
| | - Lei Qin
- Center for Membrane Separation and Water Science & Technology, State Key Lab Base of Green Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
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16
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Khine YY, Ren X, Chu D, Nishina Y, Foller T, Joshi R. Surface Functionalities of Graphene Oxide with Varying Flake Size. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00748] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yee Yee Khine
- School of Materials Science and Engineering, University of New South Wales, Sydney, Kensington, New South Wales 2052, Australia
| | - Xiaojun Ren
- School of Materials Science and Engineering, University of New South Wales, Sydney, Kensington, New South Wales 2052, Australia
| | - Dewei Chu
- School of Materials Science and Engineering, University of New South Wales, Sydney, Kensington, New South Wales 2052, Australia
| | - Yuta Nishina
- Research Core for Interdisciplinary Sciences, Okayama University, Tsushimanaka,
Kita-ku, Okayama 700-8530, Japan
- Graduate School of Natural Science and Technology, Okayama University, Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Tobias Foller
- School of Materials Science and Engineering, University of New South Wales, Sydney, Kensington, New South Wales 2052, Australia
| | - Rakesh Joshi
- School of Materials Science and Engineering, University of New South Wales, Sydney, Kensington, New South Wales 2052, Australia
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17
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Liu M, Nothling MD, Zhang S, Fu Q, Qiao GG. Thin film composite membranes for postcombustion carbon capture: Polymers and beyond. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101504] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Peng X, Zhang T, Zheng J, Lv X, Zhang H, Hu JQ, Tian W, Tan S, Ji J. Centrifugal Force Regularized Laponite@Graphene Hybrid Membranes with Ordered Interlayer Mass Transfer Channels and High Structural Stability for High-Rate Supercapacitors. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xianqiang Peng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Tingting Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jie Zheng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xingbin Lv
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Hualian Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jia-Qi Hu
- College of Science, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Wen Tian
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Shuai Tan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Junyi Ji
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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19
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Wang H, Zheng J, Zhao J, Jin W. Designing GO Channels with High Selectivity for CO 2 /N 2 Separation via Incorporating Metal Ions. Chem Asian J 2021; 16:3141-3150. [PMID: 34374219 DOI: 10.1002/asia.202100839] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/09/2021] [Indexed: 11/11/2022]
Abstract
Graphene oxide (GO) membranes holds great potential for high-performance CO2 capture. Aiming at enhancing the CO2 separation performance and structural stability of GO membranes, functionalizing GO channels with metal ions confers a promising strategy. In this study, we reported the fabrication of metal ion-incorporated GO membranes with remarkably improved CO2 /N2 separation performance. The metal ions within GO channels contribute to facilitating CO2 transport, decreasing N2 solubility, hindering N2 diffusion, and form multiple interactions with GO nanosheets. After introducing Mg2+ ions, the CO2 /N2 separation factor of GO membrane is remarkably increased from 4 to 48.8 with the CO2 permeance increases 1.5 times. Moreover, the separation performance of the GO-Mg2+ membranes shows an excellent long-term stability owing to the structural robustness. This study could provide insights into the regulation of the microstructure of metal ion-functionalized GO membranes for highly selective transport of specific molecules.
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Affiliation(s)
- Haoyu Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Jing Zheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Jing Zhao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, P. R. China
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20
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Kim JP, Choi E, Kang J, Choi SE, Choi Y, Kwon O, Kim DW. Ultrafast H 2-selective nanoporous multilayer graphene membrane prepared by confined thermal annealing. Chem Commun (Camb) 2021; 57:8730-8733. [PMID: 34369528 DOI: 10.1039/d1cc02946k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
H2 selective dense pores are generated in a graphene oxide (GO) layer by thermal-decomposition of oxygen-functional groups under high pressure. The nanoporous GO membrane shows H2/CO2 selectivity of 12.1 and H2 permeability of 10360 Barrer.
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Affiliation(s)
- Jeong Pil Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 120-749, Republic of Korea.
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21
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Size-Dependent Ion Adsorption in Graphene Oxide Membranes. NANOMATERIALS 2021; 11:nano11071676. [PMID: 34202268 PMCID: PMC8304616 DOI: 10.3390/nano11071676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 11/19/2022]
Abstract
Graphene oxide (GO)-based materials have demonstrated promising potential for adsorption and purification applications. Due to its amphiphilic nature, GO offers the possibility of removing various kinds of contaminants, including heavy metal ions and organic pollutants from aqueous environments. Here, we present size-selective ion adsorption in GO-based laminates by directly measuring the weight uptake of slats. Adsorption studies were conducted in graphene oxide purchased from Nisina Materials Japan prepared using a controlled method. We tuned the interlayer spacing of GO membranes via cationic control solutions using intercalation of very small salts ions (i.e., K+, Na+, Cl−) very precisely to facilitate the adsorption of larger ions such as [Fe(CN)6]4− and [Fe(CN)6]3−. This study demonstrates that if the opening of nanocapillaries within the laminates is bigger than the hydrated diameter of ions, the adsorption occurs within the membranes while for smaller opening, with no ion entrance the sorption occurs on the surface of the membranes.
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22
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Ying Y, Zhang Z, Peh SB, Karmakar A, Cheng Y, Zhang J, Xi L, Boothroyd C, Lam YM, Zhong C, Zhao D. Pressure-Responsive Two-Dimensional Metal-Organic Framework Composite Membranes for CO 2 Separation. Angew Chem Int Ed Engl 2021; 60:11318-11325. [PMID: 33599088 DOI: 10.1002/anie.202017089] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/13/2021] [Indexed: 11/06/2022]
Abstract
The regulation of permeance and selectivity in membrane systems may allow effective relief of conventional energy-intensive separations. Here, pressure-responsive ultrathin membranes (≈100 nm) fabricated by compositing flexible two-dimensional metal-organic framework nanosheets (MONs) with graphene oxide nanosheets for CO2 separation are reported. By controlling the gas permeation direction to leverage the pressure-responsive phase transition of the MONs, CO2 -induced gate opening and closing behaviors are observed in the resultant membranes, which are accompanied with the sharp increase of CO2 permeance (from 173.8 to 1144 gas permeation units) as well as CO2 /N2 and CO2 /CH4 selectivities (from 4.1 to 22.8 and from 4 to 19.6, respectively). The flexible behaviors and separation mechanism are further elucidated by molecular dynamics simulations. This work establishes the relevance of structural transformation-based framework dynamics chemistry in smart membrane systems.
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Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Zhengqing Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Avishek Karmakar
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Youdong Cheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Lifei Xi
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Chris Boothroyd
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Yeng Ming Lam
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Chongli Zhong
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
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23
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Ying Y, Zhang Z, Peh SB, Karmakar A, Cheng Y, Zhang J, Xi L, Boothroyd C, Lam YM, Zhong C, Zhao D. Pressure‐Responsive Two‐Dimensional Metal–Organic Framework Composite Membranes for CO
2
Separation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017089] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yunpan Ying
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Zhengqing Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Shing Bo Peh
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Avishek Karmakar
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Youdong Cheng
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Jian Zhang
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Lifei Xi
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chris Boothroyd
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Yeng Ming Lam
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chongli Zhong
- State Key Laboratory of Separation Membranes and Membrane Processes Tiangong University Tianjin 300387 China
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
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24
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Xu C, Yan K, Wang P, Zhou X, Zhang T, Fu Y, Yan Q. CuBi2O4 and rGO co-modified 3D hierarchical flower-like Bi5O7I nanoflakes as Z-scheme heterojunction for enhanced photocatalytic performance. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117935] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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25
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Gao M, Sun L, Ma C, Li X, Jiang H, Shen D, Wang H, Huo P. Constructed Z-Scheme g-C 3N 4/Ag 3VO 4/rGO Photocatalysts with Multi-interfacial Electron-Transfer Paths for High Photoreduction of CO 2. Inorg Chem 2021; 60:1755-1766. [PMID: 33464879 DOI: 10.1021/acs.inorgchem.0c03233] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Z-scheme g-C3N4/Ag3VO4/reduced graphene oxide (rGO) photocatalysts with multi-interfacial electron-transfer paths enhancing CO2 photoreduction under UV-vis light irradiation were successfully prepared by a hydrothermal process. Transmission electron microscope images displayed that the prepared photocatalysts have a unique 2D-0D-2D ternary sandwich structure. Photoelectrochemical characterizations including TPR, electrochemical impedance spectroscopy, photoluminescence, and linear sweep voltammetry explained that the multi-interfacial structure effectively improved the separation and transmission capabilities of photogenerated carriers. Electron spin resonance spectroscopy and band position analysis proved that the electron-transfer mode of g-C3N4/Ag3VO4 meets the Z-scheme mechanism. The introduction of rGO provided more electron-transfer paths for the photocatalysts and enhanced the stability of Ag-based semiconductors. In addition, the π-π conjugation effect between g-C3N4 and rGO further improved the generation and separation efficiency of photogenerated electron-hole pairs. Then, the multiple channels (Ag3VO4 → CN, Ag3VO4 → rGO → CN, and rGO → CN) due to the 2D-0D-2D structure greatly improving the photocatalytic CO2 reduction ability have been discussed in detail.
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Affiliation(s)
- Ming Gao
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Linlin Sun
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.,School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Changchang Ma
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xin Li
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Haopeng Jiang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Dong Shen
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Huiqin Wang
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Pengwei Huo
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
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26
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Lv XB, Xie R, Ji JY, Liu Z, Wen XY, Liu LY, Hu JQ, Ju XJ, Wang W, Chu LY. A Novel Strategy to Fabricate Cation-Cross-linked Graphene Oxide Membrane with High Aqueous Stability and High Separation Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56269-56280. [PMID: 33264002 DOI: 10.1021/acsami.0c15178] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Graphene oxide (GO) membranes have shown enormous promise in desalination and molecular/ionic sieving. However, the instability of GO membranes in aqueous solutions seriously hinders their practical applications. Herein, we report a novel and simple strategy to fabricate stable GO membranes in water-based environments through the insertion of various metal cations from metal foils (e.g., copper (Cu), iron (Fe), nickel (Ni), and zinc (Zn) foils) and natural deposition. Based on the cation-π, coordination, and electrostatic interaction between metal cations and GO nanosheets, the aqueous stability and mechanical strength of the membranes are significantly improved. The permeation rates for acetone, toluene, and p-xylene molecules across the GO membrane cross-linked by copper ions with a deposition time of 24 h are 0.966, 0.074, and 0.100 mol m-2 h-1, respectively. Moreover, this membrane displays excellent separation performance, and the separation factor of K+/Mg2+ is up to 68.8 in mono-/multivalent metal cation sieving, which indicate the effective molecular/ionic sieving performance. Meanwhile, the ionic sieving of the GO membrane cross-linked by copper ions has excellent repeatability and long-term stability. The versatility of this natural deposition strategy to fabricate GO membranes cross-linked by metal cations is investigated by using Fe foil, Zn foil, and Ni foil as well as other porous substrates such as polyvinylidene fluoride (PVDF), polyethersulfone (PES), and nylon membranes and filter paper. This fabrication strategy also enables low-cost preparation of large-area GO membranes. Therefore, GO membranes cross-linked by metal cations and prepared by this simple metal cation incorporation strategy have large potential application for molecular/ionic sieving in various solution systems.
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Affiliation(s)
- Xing-Bin Lv
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Jun-Yi Ji
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Xiao-Yu Wen
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Lu-Yue Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Jia-Qi Hu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, P. R. China
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27
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Dai F, Yu R, Yi R, Lan J, Yang R, Wang Z, Chen J, Chen L. Ultrahigh water permeance of a reduced graphene oxide nanofiltration membrane for multivalent metal ion rejection. Chem Commun (Camb) 2020; 56:15068-15071. [PMID: 33200760 DOI: 10.1039/d0cc06302a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We develop a kind of pure rGO membrane using amino-hydrothermal reduction that exhibits an ultrahigh water permeance of 142.5 L m-2 h-1 bar-1 while still maintaining a high rejection rate of 91.6% for multivalent metal ions. The prepared rGO membranes have two types of spacing: larger hydrophilic spacing and smaller hydrophobic spacing, resulting in superior filtration performance. This provides a new avenue for multivalent metal ion separation using pure rGO membranes.
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Affiliation(s)
- Fangfang Dai
- Department of Optical Engineering, Zhejiang Prov Key Lab Carbon Cycling Forest Ecosy, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou 311300, China.
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28
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Liu Y, Xu L, Zhang L, Dong Z, Wang S, Luo L. Direct Visualization of Atomic-Scale Graphene Growth on Cu through Environmental Transmission Electron Microscopy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52201-52207. [PMID: 33147010 DOI: 10.1021/acsami.0c15990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The functionalities of two-dimensional (2D) materials are solely determined by their perfect single-layer lattice or precisely stacking of multiple lattice planes, which is predominately determined during their growth process. Although the growth of graphene has been successfully achieved on different substrates with a large area up to millimeters, direct visualization of atomic-scale graphene growth in real time still lacks, which is vital to decipher atomistic mechanisms of graphene growth. Here, we employ aberration-corrected environmental transmission electron microscopy (AC-ETEM) to visualize the nucleation and growth of graphene at the atomic scale in real time. We find a unique lateral epitaxial growth process of graphene on Cu edges under the CO2 atmosphere with a ledge-flow process. The nucleation of graphene nuclei from amorphous carbon atoms also has been found to proceed with a gradual ordering of in-plane carbon atoms. The coalescence of smaller graphene nanoislands to form large ones is thermodynamically favored, and the evolution of atomic structures at grain boundaries is also revealed in great details. These atomic insights obtained from real-time observations can provide direct evidence for the growth mechanisms of graphene, which can be extended to other 2D materials.
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Affiliation(s)
- Yatian Liu
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin 300072, P. R. China
| | - Lei Xu
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin 300072, P. R. China
| | - Lifeng Zhang
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin 300072, P. R. China
| | - Zejian Dong
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin 300072, P. R. China
| | - Shuangbao Wang
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
| | - Langli Luo
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin 300072, P. R. China
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29
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Madauß L, Foller T, Plaß J, Kumar PV, Musso T, Dunkhorst K, Joshi R, Schleberger M. Selective Proton Transport for Hydrogen Production Using Graphene Oxide Membranes. J Phys Chem Lett 2020; 11:9415-9420. [PMID: 33104361 DOI: 10.1021/acs.jpclett.0c02481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Graphene oxide has shown exceptional properties in terms of water permeability and filtration characteristics. Here the suitability of graphene oxide membranes for the spatial separation of hydronium and hydroxide ions after photocatalytic water splitting is demonstrated. Instead of relying on classical size exclusion by adjusting the membrane laminates' interlayer spacings, nonmodified graphene oxide is used to exploit the presence of its natural functional groups and surface charges for filtration. Despite a significantly larger interlayer spacing inside the membrane compared with the size of the hydrated radii of the ions, highly asymmetric transport behavior and a 6 times higher mobility for hydronium than for hydroxide are observed. DFT simulations reveal that hydroxide ions are more prone to interact and stick to the functional groups of graphene oxide, while diffusion of hydronium ions through the membrane is less impeded and aligns well with the concept of the Grotthuss mechanism.
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Affiliation(s)
- Lukas Madauß
- Faculty of Physics and CENIDE, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Tobias Foller
- School of Materials Science and Engineering, University of New South Wales, Kensington, New South Wales 2052, Australia
| | - Jannik Plaß
- Faculty of Physics and CENIDE, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Priyank V Kumar
- School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Tiziana Musso
- School of Materials Science and Engineering, University of New South Wales, Kensington, New South Wales 2052, Australia
| | - Kirsten Dunkhorst
- Faculty of Engineering and Physics, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Rakesh Joshi
- School of Materials Science and Engineering, University of New South Wales, Kensington, New South Wales 2052, Australia
| | - Marika Schleberger
- Faculty of Physics and CENIDE, University of Duisburg-Essen, 47057 Duisburg, Germany
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30
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Huang L, Jia W, Lin H. Etching and acidifying graphene oxide membranes to increase gas permeance while retaining molecular sieving ability. AIChE J 2020. [DOI: 10.1002/aic.17022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Liang Huang
- Department of Chemical and Biological Engineering University at Buffalo, The State University of New York Buffalo New York USA
| | - Weiguang Jia
- Department of Chemical and Biological Engineering University at Buffalo, The State University of New York Buffalo New York USA
| | - Haiqing Lin
- Department of Chemical and Biological Engineering University at Buffalo, The State University of New York Buffalo New York USA
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