Three-component mixed matrix organic/inorganic hybrid membranes for pervaporation separation of ethanol-water mixture

2017 ◽  
Vol 134 (17) ◽  
Author(s):  
Zhigao Zhu ◽  
Deng Hu ◽  
Yuanren Liu ◽  
Ying Xu ◽  
Gaofeng Zeng ◽  
...  
Keyword(s):  
Water Mixture ◽  
Hybrid Membranes ◽  
Mixed Matrix ◽  
Inorganic Hybrid ◽  
Pervaporation Separation

scholarly journals Improved Desulfurization Performance of Polyethyleneglycol Membrane by Incorporating Metal Organic Framework CuBTC

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 414 ◽  
Author(s):  
Caibin Cai ◽  
Xiaotao Fan ◽  
Xiaolong Han ◽  
Jiding Li ◽  
Harsh Vardhan
Keyword(s):  
Operating Temperature ◽  
Metal Organic Framework ◽  
Mixed Matrix Membrane ◽  
Separation Performance ◽  
Hybrid Membranes ◽  
Mixed Matrix ◽  
Metal Organic ◽  
Pervaporation Separation ◽  
Π Complexation

In this paper, copper benzene-1,3,5-tricarboxylate (CuBTC) was incorporated into polyethylenglyol (PEG) to prepare a mixed matrix membrane (MMM) for pervaporation desulfurization. The characterization results showed that the prepared CuBTC particles had an ideal octahedral shape and micropores. The Cu2+ in CuBTC interacts with thiophene via π-complexation, thus enhancing the separation performance of the hybrid membranes. The effect of CuBTC content and the operating condition on the pervaporation performance of the MMMs was investigated. An optimal pervaporation separation performance was acquired with a permeation flux of 2.21 kg/(m2·h) and an enrichment factor of 8.79, which were increased by 100% and 39% compared with the pristine PEG membrane. Moreover, the CuBTC-filled PEG membrane showed a good stability in the long-term desulfurization under a high operating temperature of 75 °C for five days.

scholarly journals Multiple Amine-Contained POSS-Functionalized Organosilica Membranes for Gas Separation

Membranes ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 194
Author(s):  
Xiuxiu Ren ◽  
Masakoto Kanezashi ◽  
Meng Guo ◽  
Rong Xu ◽  
Jing Zhong ◽  
...  
Keyword(s):  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Separation Performance ◽  
Hybrid Membranes ◽  
Mixed Matrix ◽  
Translation Model ◽  
Good Thermal Stability ◽  
Oligomeric Silsesquioxane

A new polyhedral oligomeric silsesquioxane (POSS) designed with eight –(CH2)3–NH–(CH2)2–NH2 groups (PNEN) at its apexes was used as nanocomposite uploading into 1,2-bis(triethoxysilyl)ethane (BTESE)-derived organosilica to prepare mixed matrix membranes (MMMs) for gas separation. The mixtures of BTESE-PNEN were uniform with particle size of around 31 nm, which is larger than that of pure BTESE sols. The characterization of thermogravimetric (TG) and gas permeance indicates good thermal stability. A similar amine-contained material of 3-aminopropyltriethoxysilane (APTES) was doped into BTESE to prepare hybrid membranes through a copolymerized strategy as comparison. The pore size of the BTESE-PNEN membrane evaluated through a modified gas-translation model was larger than that of the BTESE-APTES hybrid membrane at the same concentration of additions, which resulted in different separation performance. The low values of Ep(CO2)-Ep(N2) and Ep(N2) for the BTESE-PNEN membrane at a low concentration of PNEN were close to those of copolymerized BTESE-APTES-related hybrid membranes, which illustrates a potential CO2 separation performance by using a mixed matrix membrane strategy with multiple amine POSS as particles.

scholarly journals CO2 Selective, Zeolitic Imidazolate Framework-7 Based Polymer Composite Mixed-Matrix Membranes

2018 ◽  
Vol 7 (3) ◽  
pp. 1 ◽  
Author(s):  
Tina Chakrabarty ◽  
Pradeep Neelakanda ◽  
Klaus-Viktor Peinemann
Keyword(s):  
Metal Organic Framework ◽  
Time Lag ◽  
Morphological Characterization ◽  
Mixed Matrix Membranes ◽  
Co2 Removal ◽  
Hybrid Membranes ◽  
Mixed Matrix ◽  
Zeolitic Imidazolate Framework ◽  
Custom Made ◽  
Matrix Membranes

CO2 removal is necessary to mitigate the effects of global warming but it is a challenging process to separate CO2 from natural gas, biogas, and other gas streams. Development of hybrid membranes by use of polymers and metal-organic framework (MOF) particles is a viable option to overcome this challenge. A ZIF-7 nano-filler that was synthesized in our lab was embedded into a designed polymer matrix at various loadings and the performance of the mixed matrix membranes was evaluated in terms of gas permeance and selectivity. Hybrid membranes with various loadings (20, 30 and 40 wt%) were developed and tested at room temperature by a custom made time lag equipment and a jump in selectivity was observed when compared with the pristine polymer. A commercially attractive region for the selectivity CO2 over CH4 was achieved with a selectivity of 39 for 40 wt% particle loading. An increase in selectivity was observed with the increase of ZIF-7 loadings. Best performance was seen at 40% ZIF-7 loaded membrane with an ideal selectivity of 39 for CO2 over CH4. The obtained selectivity was 105% higher for CO2 over CH4 than the selectivity of the pristine polymer with a slight decrease in permeance. Morphological characterization of such developed membranes showed an excellent compatibility between the polymer and particle adhesion.

Anhydrous proton-conducting organic–inorganic hybrid membranes synthesized from tetramethoxysilane/methyltrimethoxysilane/diisopropyl phosphite and ionic liquid

Ionics ◽  
2010 ◽  
Vol 16 (5) ◽  
pp. 385-395 ◽  
Author(s):  
Gandham Lakshminarayana ◽  
Vijay S. Tripathi ◽  
Ida Tiwari ◽  
Masayuki Nogami
Keyword(s):  
Ionic Liquid ◽  
Hybrid Membranes ◽  
Inorganic Hybrid ◽  
Proton Conducting

Recent advances in the fabrication and structure-specific applications of graphene-based inorganic hybrid membranes

Nanoscale ◽  
2015 ◽  
Vol 7 (12) ◽  
pp. 5080-5093 ◽  
Author(s):  
Xinne Zhao ◽  
Panpan Zhang ◽  
Yuting Chen ◽  
Zhiqiang Su ◽  
Gang Wei
Keyword(s):  
Hybrid Membranes ◽  
Inorganic Hybrid ◽  
Recent Advances
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