A polyvinyl alcohol‐based mixed matrix membrane with uniformly distributed Schiff base network‐1 for ethanol dehydration

2020 ◽  
Vol 137 (42) ◽  
pp. 49308
Author(s):  
Zhanbin Wang ◽  
Jiahao Liu ◽  
Houchao Shan ◽  
Guozhen Li ◽  
Ze Wang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Polyvinyl Alcohol ◽  
Mixed Matrix Membrane ◽  
Ethanol Dehydration ◽  
Mixed Matrix ◽  
Base Network

Dye removal using 4A-zeolite/polyvinyl alcohol mixed matrix membrane adsorbents: preparation, characterization, adsorption, kinetics, and thermodynamics

2015 ◽  
Vol 42 (6) ◽  
pp. 5309-5328 ◽  
Author(s):  
Bahareh Baheri ◽  
Raziyeh Ghahremani ◽  
Mohammad Peydayesh ◽  
Mahnaz Shahverdi ◽  
Toraj Mohammadi
Keyword(s):  
Polyvinyl Alcohol ◽  
Adsorption Kinetics ◽  
Dye Removal ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Kinetics And Thermodynamics ◽  
4A Zeolite

Highly selective sodium alginate mixed-matrix membrane incorporating multi-layered MXene for ethanol dehydration

2020 ◽  
Vol 235 ◽  
pp. 116206 ◽  
Author(s):  
Saisai Li ◽  
Juan Dai ◽  
Xin Geng ◽  
Jiding Li ◽  
Pei Li ◽  
...  
Keyword(s):  
Sodium Alginate ◽  
Mixed Matrix Membrane ◽  
Ethanol Dehydration ◽  
Mixed Matrix

scholarly journals Asymmetric poly (vinyl alcohol)/Schiff base network framework hybrid pervaporation membranes for ethanol dehydration

2022 ◽  
Vol 162 ◽  
pp. 110924
Author(s):  
Dan Zhao ◽  
Meisheng Li ◽  
Mingmin Jia ◽  
Shouyong Zhou ◽  
Yijiang Zhao ◽  
...  
Keyword(s):  
Schiff Base ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Ethanol Dehydration ◽  
Base Network

scholarly journals Ag-exchanged NaY zeolite introduced polyvinyl alcohol/polyacrylic acid mixed matrix membrane for pervaporation separation of water/isopropanol mixture

RSC Advances ◽  
2018 ◽  
Vol 8 (37) ◽  
pp. 20669-20678 ◽  
Author(s):  
YongSung Kwon ◽  
Shivshankar Chaudhari ◽  
ChaEun Kim ◽  
DaHae Son ◽  
JiHwan Park ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Polyvinyl Alcohol ◽  
Polyacrylic Acid ◽  
Mixed Matrix Membrane ◽  
Nay Zeolite ◽  
Mixed Matrix ◽  
Aqueous Mixture ◽  
Pervaporation Separation

Ag-exchanged NaY zeolite (Ag-NaZ) particles were prepared by ion exchange and introduced to a polyvinyl alcohol (PVA) membrane cross-linked with polyacrylic acid (PAA) for the pervaporation dehydration of an isopropanol (IPA) aqueous mixture.

A high ZIF-8 loading PVA mixed matrix membrane on alumina hollow fiber with enhanced ethanol dehydration

2020 ◽  
pp. 118935
Author(s):  
Geng-Sheng Lin ◽  
Yi-Rui Chen ◽  
Ta-Hsuan Chang ◽  
Tse-Chiang Huang ◽  
Guo-Liang Zhuang ◽  
...  
Keyword(s):  
Hollow Fiber ◽  
Mixed Matrix Membrane ◽  
Ethanol Dehydration ◽  
Mixed Matrix

Aqueous One-Step Modulation for Synthesizing Monodispersed ZIF-8 Nanocrystals for Mixed-Matrix Membrane

2021 ◽  
Vol 13 (9) ◽  
pp. 11296-11305
Author(s):  
Xu Jiang ◽  
Shanshan He ◽  
Gang Han ◽  
Jun Long ◽  
Songwei Li ◽  
...  
Keyword(s):  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
One Step

Kinetics studies on free radical scavenging property of ceria in polysulfone–ceria radiation resistant mixed-matrix membrane

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Amita Bedar ◽  
Beena G. Singh ◽  
Pradip K. Tewari ◽  
Ramesh C. Bindal ◽  
Soumitra Kar
Keyword(s):  
Radical Scavenging ◽  
Radiation Environment ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Ceria Nanoparticles ◽  
Ros Scavenging ◽  
Mixed Matrix ◽  
Stable States ◽  
Host Matrix ◽  
Γ Radiation

Abstract Cerium oxide (ceria) contains two stable states of cerium ions (Ce3+ and Ce4+). The presence of these two states and the ability to swap from one state to another (Ce3+ ↔ Ce4+) by scavenging the highly reactive oxygen species (ROS) generated from radiolysis of water, ensure the enhanced stability of polysulfone (Psf) membranes in the γ-radiation environment. In this study, the ROS scavenging ability of ceria was studied. Ceria nanoparticles were found to scavenge ROS like hydroxyl radicals and hydrogen peroxide (H2O2). The H2O2 scavenging is due to the peroxidase-like catalytic activity of ceria nanoparticles. The ROS scavenging is responsible for offering protection to the Psf host matrix and in turn the stability to the Psf-ceria mixed-matrix membranes (MMMs) in γ-radiation environment. Thus, presence of ceria nanoparticles provides an opportunity for utilizing Psf-ceria MMMs in ionizing radiation environment with increased life span, without compromise in the performance.

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.

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