1
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Highly-selective MOF-303 membrane for alcohol dehydration. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Low-temperature cross-linking fabrication of sub-nanoporous SiC-based membranes for application to the pervaporation removal of methanol. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Anggarini U, Yu L, Nagasawa H, Kanezashi M, Tsuru T. Structural transformation of the nickel coordination-induced subnanoporosity of aminosilica membranes for methanol-selective, high-flux pervaporation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Aoyama S, Nagasawa H, Kanezashi M, Tsuru T. Nanogradient Hydrophilic/Hydrophobic Organosilica Membranes Developed by Atmospheric-Pressure Plasma to Enhance Pervaporation Performance. ACS NANO 2022; 16:10302-10313. [PMID: 35728269 DOI: 10.1021/acsnano.1c11656] [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
Organosilica membranes are a promising candidate for pervaporation dehydration owing to their tunable molecular sieving characteristics and excellent hydrothermal stability. Herein, we report a facile modification using an atmospheric-pressure water vapor plasma to enhance the pervaporation performance of organosilica membranes. The surface of methyl-terminated organosilica membranes was treated by water vapor plasma to develop an ultrathin separation active layer suitable for pervaporation dehydration. The surface hydrophilicity was increased by water vapor plasma due to oxidative decomposition of methyl groups to form silanol groups. The plasma-modified layer had a thickness of several nanometers and had a silica-like structure due to the condensation of silanol groups. The plasma-modified organosilica membranes exhibited an improved molecular sieving property owing to the formation of highly cross-linked siloxane networks with a pore size of approximately 0.4 nm. The membranes also exhibited an excellent permselectivity in the dehydration of alcohols due to the nanometer-thick separation active layer with controlled pore size and increased hydrophilicity. The plasma-modified membranes showed high H2O permeance exceeding 10-6 mol m-2 s-1 Pa-1 with permeance ratios for H2O/EtOH and H2O/IPA of 517-3050 and >10 000, respectively, in the dehydration of 90 wt % aqueous solutions at 50 °C, which is among the highest permselectivities for silica-based membranes. Furthermore, the plasma-modified membranes displayed highly efficient dehydration performance for a H2O/MeOH mixture. The H2O permeance and H2O/MeOH permeance ratio in the dehydration of a 90 wt % MeOH aqueous solution at 50 °C were (2.3-3.0) × 10-6 mol m-2 s-1 Pa-1 and 31-143, respectively, which exceeded the permeance-selectivity trade-off of conventional membranes including polymeric, silica-based, and zeolite membranes. The results indicate that the proposed plasma-assisted approach can enhance the pervaporation performance of organosilica membranes via the modification under atmospheric pressure and at room temperature.
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Affiliation(s)
- Shun Aoyama
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
| | - Hiroki Nagasawa
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
| | - Masakoto Kanezashi
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
| | - Toshinori Tsuru
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
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5
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Effect of heat diffusivity for driving chain stitching of dual-type hybrid organosilica-derived membranes. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120848] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Moriyama N, Ike M, Nagasawa H, Kanezashi M, Tsuru T. Network tailoring of organosilica membranes via aluminum doping to improve the humid-gas separation performance. RSC Adv 2022; 12:5834-5846. [PMID: 35424575 PMCID: PMC8981573 DOI: 10.1039/d1ra07866f] [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: 10/25/2021] [Accepted: 02/07/2022] [Indexed: 11/24/2022] Open
Abstract
Organosilica membranes have recently attracted much attention due to excellent hydrothermal stability which enables their use in the presence of water. In particular, during humid-gas separations at moderate-to-high temperatures, these membranes have shown excellent water permeance and moderate water selectivity, which has been a breakthrough in separation performance. In the present work, we found that aluminum doping into the bis(triethoxysilyl)ethane (BTESE)-derived organosilica structure further improves water selectivity (H2O/N2, H2O/H2) while maintaining a level of water permeance that reaches as high as several 10−6 mol (m−2 s−1 Pa−1). Single-gas permeation and nitrogen adsorption experiments have revealed that aluminum doping promotes densification of the pore structure and improves molecular sieving. In addition, water adsorption and desorption experiments have revealed that aluminum doping enhances water adsorption onto the pore walls, which blocks permeation by other gasses and significantly improves water permeation selectivity during the separation of humid gases. Our results provide a strategy for the fabrication of a membrane that provides both a high level of water permeance and enhanced water selectivity. Al doping densified and hydrophilized the pore structure of organosilica membranes, which resulted in improved permselectivity in humid-gas separation at moderate-to-high temperature.![]()
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Affiliation(s)
- Norihiro Moriyama
- Department of Chemical Engineering, Hiroshima University 1-4-1 Kagami-yama Higashi-Hiroshima 739-8527 Japan
| | - Misato Ike
- Department of Chemical Engineering, Hiroshima University 1-4-1 Kagami-yama Higashi-Hiroshima 739-8527 Japan
| | - Hiroki Nagasawa
- Department of Chemical Engineering, Hiroshima University 1-4-1 Kagami-yama Higashi-Hiroshima 739-8527 Japan
| | - Masakoto Kanezashi
- Department of Chemical Engineering, Hiroshima University 1-4-1 Kagami-yama Higashi-Hiroshima 739-8527 Japan
| | - Toshinori Tsuru
- Department of Chemical Engineering, Hiroshima University 1-4-1 Kagami-yama Higashi-Hiroshima 739-8527 Japan
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7
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Rana I, Nagasawa H, Yamamoto K, Gunji T, Tsuru T, Kanezashi M. Effect of fluorine doping on the network pore structure of non-porous organosilica bis(triethoxysilyl)propane (BTESP) membranes for use in molecular separation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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9
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Terao T, Nagasawa H, Kanezashi M, Yanagishita H, Tsuru T. Controlled organosilica networks via metal doping for improved dehydration membranes with layered hybrid structures. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Moriyama N, Nagasawa H, Kanezashi M, Tsuru T. Steam recovery via nanoporous and subnanoporous organosilica membranes: The effects of pore structure and operating conditions. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Anggarini U, Yu L, Nagasawa H, Kanezashi M, Tsuru T. Microporous Nickel-Coordinated Aminosilica Membranes for Improved Pervaporation Performance of Methanol/Toluene Separation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23247-23259. [PMID: 33955222 DOI: 10.1021/acsami.1c05012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The nickel-doped bis [3-(trimethoxysilyl) propyl] amine (BTPA) derived membrane has a microporous coordinated network that has high potential to be an ideal separation barrier for methanol-toluene azeotropic mixtures via the pervaporation process. Ni-BTPA membranes were modified by employing a nickel dopant over amine groups in mole ratios (mol/mol) that ranged from 0.125 to 0.50. The incorporation of different amounts of nickel dopant into flexible amine-rich organosilica precursors of BTPA increased the rigidity and resulted in a porous structure with a large specific surface area (increased from 2.36 up to 282 m2 g-1) and a high pore volume (from 0.024 up to 0.184 cm3 g-1). Methanol-toluene separation performance by the nickel-doped BTPA (Ni-BTPA) membranes was increased with increases in the nickel concentration. Ni-BTPA 0.50 showed separation performance that was superior to other types of membranes, along with a high-level of flux at 2.8 kg m-2 h-1 and a separation factor higher than 900 in a 10 wt % methanol feed solution at 50 °C. These results suggest that the balance between the microporosity induced by amine-nickel coordination and an excessive amount of nickel-ion facilitates high levels of flux and separation of methanol.
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Affiliation(s)
- Ufafa Anggarini
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Liang Yu
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, China
| | - Hiroki Nagasawa
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Masakoto Kanezashi
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Toshinori Tsuru
- Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
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12
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Kanezashi M, Hataoka N, Ikram R, Nagasawa H, Tsuru T. Hydrothermal stability of fluorine‐induced microporous silica membranes: Effect of steam treatment conditions. AIChE J 2021. [DOI: 10.1002/aic.17292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Masakoto Kanezashi
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima Japan
| | - Naoya Hataoka
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima Japan
| | - Rana Ikram
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima Japan
| | - Hiroki Nagasawa
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima Japan
| | - Toshinori Tsuru
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima Japan
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13
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Raza W, Jianhua Y, Wang J, Saulat H, Wang L, Lu J, Zhang Y. A selective organosilica membrane for ethyl acetate dehydration by pervaporation. J Appl Polym Sci 2021. [DOI: 10.1002/app.50942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Waseem Raza
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
| | - Yang Jianhua
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
- Panjin Institute of Industrial Technology Dalian University of Technology Panjin China
| | - Jiaxuan Wang
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
| | - Hammad Saulat
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
| | - Lei Wang
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
| | - Jingming Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
| | - Yan Zhang
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian China
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14
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Guo M, Kanezashi M. Recent Progress in a Membrane-Based Technique for Propylene/Propane Separation. MEMBRANES 2021; 11:membranes11050310. [PMID: 33922617 PMCID: PMC8145504 DOI: 10.3390/membranes11050310] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022]
Abstract
The similar physico-chemical properties of propylene and propane molecules have made the separation process of propylene/propane challenging. Membrane separation techniques show substantial prospects in propylene/propane separation due to their low energy consumption and investment costs, and they have been proposed to replace or to be combined with the conventional cryogenic distillation process. Over the past decade, organosilica membranes have attracted considerable attention due to their significant features, such as their good molecular sieving properties and high hydrothermal stability. In the present review, holistic insight is provided to summarize the recent progress in propylene/propane separation using polymeric, inorganic, and hybrid membranes, and a particular inspection of organosilica membranes is conducted. The importance of the pore subnano-environment of organosilica membranes is highlighted, and future directions and perspectives for propylene/propane separation are also provided.
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Affiliation(s)
- Meng Guo
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;
| | - Masakoto Kanezashi
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
- Correspondence: ; Tel.: +81-82-424-2035
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15
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Moriyama N, Kawano Y, Wang Q, Inoue R, Guo M, Yokoji M, Nagasawa H, Kanezashi M, Tsuru T. Pervaporation via silicon‐based membranes: Correlation and prediction of performance in pervaporation and gas permeation. AIChE J 2021. [DOI: 10.1002/aic.17223] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Norihiro Moriyama
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Yuta Kawano
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Qing Wang
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Ryota Inoue
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Meng Guo
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Makoto Yokoji
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Hiroki Nagasawa
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Masakoto Kanezashi
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
| | - Toshinori Tsuru
- Department of Chemical Engineering Hiroshima University Higashi‐Hiroshima Japan
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16
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Zhang Z, Wu Y, Gao L, Xiao G. Pervaporation separation of levulinic acid aqueous solution by
ZSM
‐5/
PDMS
composite membrane. J Appl Polym Sci 2021. [DOI: 10.1002/app.49611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zongqi Zhang
- School of Chemistry and Chemical Engineering Southeast University Nanjing China
| | - Yuanfeng Wu
- School of Chemistry and Chemical Engineering Southeast University Nanjing China
| | - Lijing Gao
- School of Chemistry and Chemical Engineering Southeast University Nanjing China
| | - Guomin Xiao
- School of Chemistry and Chemical Engineering Southeast University Nanjing China
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17
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Pervaporation removal of methanol from methanol/organic azeotropes using organosilica membranes: Experimental and modeling. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118284] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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HCl modification and pervaporation performance of BTESE membrane for the dehydration of acetic acid/water mixture. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116102] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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Development of high-performance sub-nanoporous SiC-based membranes derived from polytitanocarbosilane. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117688] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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20
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Dudek G, Borys P, Strzelewicz A, Krasowska M. Characterization of the Structure and Transport Properties of Alginate/Chitosan Microparticle Membranes Utilized in the Pervaporative Dehydration of Ethanol. Polymers (Basel) 2020; 12:E411. [PMID: 32054056 PMCID: PMC7077690 DOI: 10.3390/polym12020411] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/05/2020] [Accepted: 02/09/2020] [Indexed: 11/26/2022] Open
Abstract
The structure and transport properties of alginate/chitosan microparticle membranes used in ethanol dehydration processes were investigated. The membranes were characterized based on images obtained from high-resolution microscopy. The following parameters were determined: the observed total amount of void space, the average size of the void domains, their length and diameter, the fractal dimension, and the generalized stochastic fractal parameters. The total amount of void space was determined to be between 54% and 64%. The average size of the void domains is smaller for alginate membranes containing neat (CS) and phosphorylated (CS-P) chitosan particles when compared to those membranes filled with glycidol-modified (CS-G) and glutaraldehyde crosslinked (CS-GA) chitosan particles. Furthermore, the transport of ethanol and water particles through the studied membranes was modelled using a random walk framework. It was observed that the results from the theoretical and experimental studies are directly correlated. The smallest values of water to ethanol diffusion coefficient ratios (i.e., 14) were obtained for Alg (sodium alginate) membranes loaded with the CS and CS-P particles, respectively. Significantly larger values (27 and 19) were noted for membranes filled with CS-G and CS-GA particles, respectively. The simulation results show that the size of channels which develop in the alginate matrix is less suited for ethanol molecules compared to water molecules because of their larger size. Such a situation facilitates the separation of water from ethanol. The comparison of the structural analysis of the membranes and random walk simulations allows one to understand the factors that influence the transport phenomena, in the studied membranes, and comment on the effect of the length, diameter, number of channels, and variations in the pore diameters on these transport parameters.
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Affiliation(s)
- Gabriela Dudek
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland; (P.B.); (A.S.); (M.K.)
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21
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Selective water vapor permeation from steam/non-condensable gas mixtures via organosilica membranes at moderate-to-high temperatures. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117254] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Nagasawa H, Murata M, Kanezashi M, Tsuru T. Effect of Sintering Temperature on Sol–Gel Synthesis of Porous Polymeric Membrane Supported Layered Hybrid Organosilica Membranes and Their Vapor Permeation Property. KAGAKU KOGAKU RONBUN 2019. [DOI: 10.1252/kakoronbunshu.45.177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Mamoru Murata
- Department of Chemical Engineering, Hiroshima University
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23
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Ren X, Tsuru T. Organosilica-Based Membranes in Gas and Liquid-Phase Separation. MEMBRANES 2019; 9:membranes9090107. [PMID: 31443501 PMCID: PMC6780740 DOI: 10.3390/membranes9090107] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/17/2019] [Accepted: 08/20/2019] [Indexed: 11/16/2022]
Abstract
Organosilica membranes are a type of novel materials derived from organoalkoxysilane precursors. These membranes have tunable networks, functional properties and excellent hydrothermal stability that allow them to maintain high levels of separation performance for extend periods of time in either a gas-phase with steam or a liquid-phase under high temperature. These attributes make them outperform pure silica membranes. In this review, types of precursors, preparation method, and synthesis factors for the construction of organosilica membranes are covered. The effects that these factors exert on characteristics and performance of these membranes are also discussed. The incorporation of metals, alkoxysilanes, or other functional materials into organosilica membranes is an effective and simple way to improve their hydrothermal stability and achieve preferable chemical properties. These hybrid organosilica membranes have demonstrated effective performance in gas and liquid-phase separation.
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Affiliation(s)
- Xiuxiu Ren
- Jiangsu Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Toshinori Tsuru
- Separation Engineering Laboratory, Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
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24
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Qiu B, Wang Y, Fan S, Liu J, Jian S, Qin Y, Xiao Z, Tang X, Wang W. Ethanol mass transfer during pervaporation with PDMS membrane based on solution-diffusion model considering concentration polarization. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.03.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Gaálová J, Vojtek L, Lasnier S, Tadic T, Sýkora J, Izák P. Separation of Trimethyl Borate from a Liquid Mixture by Pervaporation. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201800585] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jana Gaálová
- Institute of Chemical Process Fundamentals of the ASCR, v.v.i. Rozvojova 135 165 00 Prague Czech Republic
| | - Lukáš Vojtek
- Institute of Chemical Process Fundamentals of the ASCR, v.v.i. Rozvojova 135 165 00 Prague Czech Republic
| | - Sara Lasnier
- Institute of Chemical Process Fundamentals of the ASCR, v.v.i. Rozvojova 135 165 00 Prague Czech Republic
| | - Toma Tadic
- Institute of Chemical Process Fundamentals of the ASCR, v.v.i. Rozvojova 135 165 00 Prague Czech Republic
| | - Jan Sýkora
- Institute of Chemical Process Fundamentals of the ASCR, v.v.i. Rozvojova 135 165 00 Prague Czech Republic
| | - Pavel Izák
- Institute of Chemical Process Fundamentals of the ASCR, v.v.i. Rozvojova 135 165 00 Prague Czech Republic
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26
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Hu H, Zhu J, Yang F, Chen Z, Deng M, Weng L, Ling Y, Zhou Y. A robust etb-type metal–organic framework showing polarity-exclusive adsorption of acetone over methanol for their azeotropic mixture. Chem Commun (Camb) 2019; 55:6495-6498. [DOI: 10.1039/c9cc02439e] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a robust and rigid etb-type metal–organic framework (MOF) which shows unprecedentedly polarity-exclusive adsorption of acetone over methanol for their azeotropic mixture.
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Affiliation(s)
- Han Hu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Jiaxing Zhu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Feilong Yang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Zhenxia Chen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Mingli Deng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Linhong Weng
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Yun Ling
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Yaming Zhou
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Department of Chemistry
- Fudan University
- Shanghai
- China
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27
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Vane LM. Review: Membrane Materials for the Removal of Water from Industrial Solvents by Pervaporation and Vapor Permeation. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (OXFORD, OXFORDSHIRE : 1986) 2019; 94:343-365. [PMID: 30930521 PMCID: PMC6436640 DOI: 10.1002/jctb.5839] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Organic solvents are widely used in a variety of industrial sectors. Reclaiming and reusing the solvents may be the most economically and environmentally beneficial option for managing spent solvents. Purifying the solvents to meet reuse specifications can be challenging. For hydrophilic solvents, water must be removed prior to reuse, yet many hydrophilic solvents form hard-to-separate azeotropic mixtures with water. Such mixtures make separation processes energy intensive and cause economic challenges. The membrane processes pervaporation (PV) and vapor permeation (VP) can be less energy intensive than distillation-based processes and have proven to be very effective in removing water from azeotropic mixtures. In PV/VP, separation is based on the solution-diffusion interaction between the dense permselective layer of the membrane and the solvent/water mixture. This review provides a state-of-the-science analysis of materials used as the selective layer(s) of PV/VP membranes in removing water from organic solvents. A variety of membrane materials, such as polymeric, inorganic, mixed matrix, and hybrid, have been reported in the literature. A small subset of these are commercially available and highlighted here: poly(vinyl alcohol), polyimides, amorphous perfluoro polymers, NaA zeolites, chabazite zeolites, T-type zeolites, and hybrid silicas. The typical performance characteristics and operating limits of these membranes are discussed. Solvents targeted by the U.S. Environmental Protection Agency for reclamation are emphasized and ten common solvents are chosen for analysis: acetonitrile, 1-butanol, N,N-dimethyl formamide, ethanol, methanol, methyl isobutyl ketone, methyl tert-butyl ether, tetrahydrofuran, acetone, and 2-propanol.
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Affiliation(s)
- Leland M Vane
- U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, Ohio 45268 USA
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