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Water under extreme confinement in graphene: Oscillatory dynamics, structure, and hydration pressure explained as a function of the confinement width. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114027] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Zhou M, Li S, Lu L, Cao W, Wang S, Xie W. The effect of surface wrinkles on the properties of water in graphene slit pores. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1754411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Musen Zhou
- 2011 College, Nanjing Tech University, Nanjing, People’s Republic of China
| | - Sanmei Li
- College of Chemical Engineering, State Key Laboratory of Materials-oriented Chemical Engineering, Nanjing Tech University, Nanjing, People’s Republic of China
| | - Linghong Lu
- College of Chemical Engineering, State Key Laboratory of Materials-oriented Chemical Engineering, Nanjing Tech University, Nanjing, People’s Republic of China
| | - Wei Cao
- State Key Laboratory of Tribology, Tsinghua University, Beijing, People’s Republic of China
| | - Shanshan Wang
- College of Chemical Engineering, State Key Laboratory of Materials-oriented Chemical Engineering, Nanjing Tech University, Nanjing, People’s Republic of China
| | - Wenlong Xie
- China Petroleum Chemicals Kunshan Company, Kunshan, People’s Republic of China
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Sun Y, Yu F, Li C, Dai X, Ma J. Nano-/Micro-confined Water in Graphene Hydrogel as Superadsorbents for Water Purification. NANO-MICRO LETTERS 2019; 12:2. [PMID: 34138060 PMCID: PMC7770964 DOI: 10.1007/s40820-019-0336-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 11/11/2019] [Indexed: 05/07/2023]
Abstract
Confined water has been proven to be of great importance due to its pervasiveness and contribution to life and many fields of scientific research. However, the control and characterization of confined water are a challenge. Herein, a confined space is constructed by flexibly changing the pH of a graphene oxide dispersion under the self-assembly process of a graphene hydrogel (GH), and the confined space is adjusted with variation from 10.04 to 3.52 nm. Confined water content in GH increases when the pore diameter of the confined space decreases; the corresponding adsorption capacity increases from 243.04 to 442.91 mg g-1. Moreover, attenuated total reflectance Fourier transform infrared spectroscopy and Raman spectroscopy are utilized to analyze the hydrogen bonding structure qualitatively and quantitatively, and correlation analysis reveals that the improvement in the adsorption capacity is caused by incomplete hydrogen bonding in the confined water. Further, confined water is assembled into four typical porous commercial adsorbents, and a remarkable enhancement of the adsorption capacity is achieved. This research demonstrates the application potential for the extraordinary properties of confined water and has implications for the development of highly effective confined water-modified adsorbents.
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Affiliation(s)
- Yiran Sun
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
| | - Fei Yu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
| | - Cong Li
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Xiaohu Dai
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People's Republic of China
| | - Jie Ma
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China.
- Research Center for Environmental Functional Materials, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, People's Republic of China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, People's Republic of China.
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Mozaffari F, Zeraatgar M. Molecular Dynamics Simulation of Nanoconfined Ethanol–Water Mixtures. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Farkhondeh Mozaffari
- Department of Chemistry, College of Sciences, Persian Gulf University, Bushehr 75168, Iran
| | - Mina Zeraatgar
- Department of Chemistry, College of Sciences, Persian Gulf University, Bushehr 75168, Iran
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Oh MI, Gupta M, Oh CI, Weaver DF. Understanding the effect of nanoconfinement on the structure of water hydrogen bond networks. Phys Chem Chem Phys 2019; 21:26237-26250. [DOI: 10.1039/c9cp05014k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dynamic hydrogen bond trails in water confined between two phospholipid membranes traced by the information flow model.
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Affiliation(s)
- Myong In Oh
- Krembil Research Institute
- University Health Network
- Toronto
- Canada
| | - Mayuri Gupta
- Krembil Research Institute
- University Health Network
- Toronto
- Canada
| | - Chang In Oh
- Department of Mathematics
- University of Western Ontario
- London
- Canada
| | - Donald F. Weaver
- Departments of Medicine, Chemistry, and Pharmaceutical Sciences
- University of Toronto
- Toronto
- Canada
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Tsimpanogiannis IN, Moultos OA, Franco LFM, Spera MBDM, Erdős M, Economou IG. Self-diffusion coefficient of bulk and confined water: a critical review of classical molecular simulation studies. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2018.1511903] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ioannis N. Tsimpanogiannis
- Environmental Research Laboratory, National Center for Scientific Research “Demokritos”, Aghia Paraskevi Attikis, Greece
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Aghia Paraskevi Attikis, Greece
| | - Othonas A. Moultos
- Engineering Thermodynamics, Process & Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands
| | - Luís F. M. Franco
- School of Chemical Engineering, University of Campinas, Campinas, Brazil
| | | | - Máté Erdős
- Engineering Thermodynamics, Process & Energy Department, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands
| | - Ioannis G. Economou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Aghia Paraskevi Attikis, Greece
- Chemical Engineering Program, Texas A&M University at Qatar, Doha, Qatar
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