Article
Chemistry, Physical
Agnieszka K. Holda, Semali Perera, Emma A. Emanuelsson Patterson
Summary: Polysulfone-based nanofiltration membranes containing homocoupled conjugated microporous poly(phenylene butadiynylene) (HCMP) were prepared via phase inversion. The membrane containing HCMP showed higher cumulative adsorptive-photocatalytic effect compared to the reference membrane. It exhibited good Rhodamine B rejection and permeance performance, and demonstrated stability in long-term activity testing.
CATALYSIS COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Yuhui Cui, Guozhen Li, Hanzhu Wu, Siyu Pang, Yan Zhuang, Zhihao Si, Xinmiao Zhang, Peiyong Qin
Summary: By optimizing the concentration of acetone additive, coagulation bath composition and evaporation time, the gas separation performance and application value of the Kapton membrane can be enhanced.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Engineering, Chemical
Rasoul Rahimnia, Majid Pakizeh
Summary: The non-solvent induced phase separation (NIPS) method was used to prepare PPO/PS blend flat-sheet porous membranes, which were then tested in a DCMD experimental set-up. The prepared membranes were characterized and their performance was evaluated in terms of permeate flux, rejection rate, and anti-fouling and anti-scaling properties. The results showed that increasing the feed temperature and maintaining the permeate temperature constant resulted in increased permeate flux. The membranes exhibited high rejection rates in all DCMD tests, and their anti-scaling and anti-fouling properties were also demonstrated.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Bharti Saini, Manish Kumar Sinha, Anirban Dey
Summary: Polymeric membrane technology is widely recognized as an important tool in separation and purification processes. This review provides a reference for researchers interested in the fabrication of polymeric membranes using the phase inversion method. It focuses on the preparation, modification, and characterization of polymeric membranes, as well as their properties and applications in various fields.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Chemical
Lu Wang, Ying Li, Liming Pu, Miao Yang, Hongsheng Lu, Xuehong Gu, Xuerui Wang
Summary: The asymmetric 6FDA-APAF0.5-Cardo0.5 copolyimide membranes with effective thickness of -200 nm showed excellent performance in helium extraction from natural gas. The membranes exhibited high permeance, good selectivity, and resistance to impurities, making them suitable for practical application.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Chemistry, Physical
Shanthana Lakshmi Duraikkannu, Roberto Castro-Munoz, Alberto Figoli
Summary: This review provides a detailed discussion on the preparation method of polymer microspheres using phase-inversion and their applications. The study covers parameters such as preparation mechanism, the effect of loading material, and different morphologies of MCs. It also reviews the most suitable microsized polymeric materials for high-end applications and conventional techniques used for MCs preparation.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Natalia Cristina Fontao, Michaela Wilhelm, Kurosch Rezwan
Summary: Asymmetric porous SiOC membranes with different pore characteristics and morphology were successfully produced using the phase inversion tape casting technique. By adjusting the pyrolysis temperature and slurry composition, the structure and surface characteristics of the membrane can be tailored, resulting in improved mechanical strength and water permeation fluxes. The asymmetric structure of the membranes was found to minimize mass transport limitations, showing advantages in water filtration applications.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Multidisciplinary
Fatma Seden Tekin, P. Zeynep Culfaz-Emecen
Summary: The effects of three different solvent systems on the preparation of cellulose acetate membranes by phase inversion were investigated. Acetone as cosolvent resulted in an asymmetric membrane morphology, while acetic acid led to a loose, almost isotropic structure. The phase inversion rate was significantly lower when acetic acid was used as cosolvent, mainly due to its high viscosity.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yan Dai, Wenji Zheng, Xiangcun Li, Anmin Liu, Wei Zhang, Xiaobin Jiang, Xuemei Wu, Jiahao Tao, Gaohong He
Summary: In this study, two scalable porous CNT@C membranes were developed for high-energy Li-S batteries, with one acting as a cathode for current collection and high sulfur loading, and the other functioning as an interlayer to trap lithium polysulfides. Nitrogen-doped sites in the carbon membranes were identified as active centers that accelerate the oxidation of Li2S and polysulfide conversion. By utilizing a synergistic circulation groove with the two membranes, the practical sulfur loading was tailored and high performance Li-S batteries were achieved.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Turki N. Baroud
Summary: We have successfully fabricated a series of highly efficient polyvinylidene fluoride (PVDF) membranes by varying the substrate morphology. Sandpapers with a wide range of grit sizes (150-1200) were used as casting substrates to tune the effect of abrasive particles on the casted polymer solution. The impact of these particles on porosity, surface wettability, liquid entry pressure, and membrane morphology were investigated. The developed membranes on sandpapers showed excellent membrane distillation performance for desalinating highly saline water (70,000 ppm), with stable salt rejection up to 100% and a 210% increase in permeate flux over 24 hours. These findings provide insights into the role of substrate nature in controlling membrane characteristics and performance.
Review
Engineering, Chemical
Zhong Sheng Tai, Mohd Hafiz Dzarfan Othman, Khong Nee Koo, Juhana Jaafar
Summary: Membrane distillation (MD) is a thermal and membrane process that uses a hydrophobic membrane to separate volatile solutes at high temperatures. Although MD has excellent separation efficiency at low pressure, its commercialization has been hindered by low flux performance. This article reviews four key membrane innovations that could enhance the flux performance of MD and provides an update-to-date review of high-flux MD membrane innovations. The economic potential of MD membranes is also addressed.
Article
Engineering, Chemical
Luolu Zhou, Meng Chen, Hu Yang, Zhen-liang Xu
Summary: This study introduces a novel ultrafiltration membrane called NFFM, which utilizes a nanofiber layer as an integral filler in the phase inversion process. The photoactive NFFM made using photoactive PAN-C3N4 NF showed special morphologies and better dye rejection property compared to other membranes. This primitive study provides a new method for preparing a new type of membrane with potential applications.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Engineering, Chemical
Yuanhui Tang, Yakai Lin, David M. Ford, Xianghong Qian, M. Rosario Cervellere, Paul C. Millett, Xiaolin Wang
Summary: Phase inversion processes are widely used in manufacturing polymeric membranes, but the understanding of the connection between process variables and final membrane structure remains largely empirical. Modeling efforts have primarily relied on heuristics correlating experimentally observed pore structures with process conditions, with recent developments introducing mesoscopic phase field approaches and molecular simulations to improve accuracy. This review aims to inspire further progress in modeling development for membrane preparation by phase inversion processes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Zhenyu Zhao, Bao Liu, Ayesha Ilyas, Maarten Vanierschot, Koenraad Muylaert, Ivo F. J. Vankelecom
Summary: The use of negatively charged patterned membranes was found to be effective in harvesting microalgae, with high clean water permeance, low membrane intrinsic resistance, and high critical flux. Membrane vibration could further reduce membrane fouling. The synergistic effect between membrane structure, vibration system, and charge led to a significantly enhanced membrane performance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Yichen Yin, Sijia Liu, Yang Yang, Dian Gong, Minghao Liu, Guojuan Liu, Ping Wu, Qing Xu, Chengbing Yu, Gaofeng Zeng
Summary: Water electrolysis is a promising method for producing non-fossil fuel derived H2, and medium temperature water (steam) electrolysis (100-350 degrees C) has great potential due to its reduced energy consumption and utilization of low-grade waste heat. However, the performance of proton conductive membranes presents a challenge. In this study, a PVC-PEI hybrid membrane was developed by cross-linking PVC and PEI, and the integrated nitrogen-containing groups of PEI enhanced the adsorption and loading rate of phosphoric acid, thereby providing proton conductivity for the hybrid membrane. The optimized PVC-PEI membrane achieved a maximum proton conductivity of 4.3 x 10-2 S cm-1 at 180 degrees C and exhibited long-term conductivity stability for 200 hours at 140 degrees C. The PVC-PEI membrane electrode assembly showed high water electrolysis reactivity in the range of 100-180 degrees C with a commercial IrO2 anode and Pt/C cathode, and demonstrated reliable stability for water electrolysis at 140 degrees C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Polymer Science
N. -C. Wang, L. -F. Fang, J. Wang, P. Zhang, W. -B. Wang, C. -E. Lin, L. Xiao, C. Chen, B. Zhao, H. Abdallah, H. Matsuyama, B. -K. Zhu
JOURNAL OF APPLIED POLYMER SCIENCE
(2019)
Article
Engineering, Chemical
Walaa M. Shehata, Ahmed A. Bhran, Abeer M. Shoaib, Ashour A. Ibrahim, Fatma K. Gad
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Engineering, Chemical
Mahmoud R. Elsaid, Abeer M. Shoaib, Ahmed A. Bhran, Mostafa E. Awad
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Materials Science, Ceramics
Shereen K. Amin, Mai H. Roushdy, Heba A. M. Abdallah, Ahmed F. Moustafa, Magdi F. Abadir
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2020)
Article
Engineering, Environmental
Ming-Yong Zhou, Peng Zhang, Li-Feng Fang, Bao-Ku Zhu, Jian-Li Wang, Jiang-Hua Chen, Heba M. Abdallah
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Polymer Science
M. Shaban, H. AbdAllah, L. Said, Ashour M. Ahmed
JOURNAL OF POLYMER RESEARCH
(2019)
Article
Engineering, Chemical
Revathy Rajakumaran, Vinisha Boddu, Mathava Kumar, Marwa S. Shalaby, Heba Abdallah, Raghuram Chetty
Article
Materials Science, Ceramics
D. Rashad, Sh. K. Amin, M. S. Mansour, H. Abdallah
Summary: Three tubular ceramic membranes were fabricated and tested for water treatment applications, with F2 showing the best performance for antibacterial microfiltration and F3 being the most effective at removing total coliform.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Heba Abdallah, Hanan H. Abo-Almaged, Shereen K. Amin, Marwa S. Shalaby, A. M. Shaban
Summary: Mixed matrix membranes were prepared by blending nanoceramic powder and polyethersulfone. The addition of nanoceramic powder improved the mechanical properties of the membrane. The membranes showed increased salt rejection with higher percentages of nanoceramic powder and nonwoven polyester support.
JOURNAL OF POLYMER ENGINEERING
(2022)
Article
Engineering, Chemical
Marwa S. Shalaby, Moustapha S. Mansour, Ahmed Badr Eldin, Heba Abdallah, Ibrahim Ismail Ibrahim, Marwa Abdel Fattah, Gawel Solowski
Summary: Coating a commercial polyamide thin-film membrane with PVA can enhance the hydrophilicity and antifouling properties of the membrane, increasing phenol rejection. The modified membrane shows higher permeate flux and flux recovery rate under the same conditions.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Polymer Science
Marwa S. Shalaby, Heba Abdallah, Ralph Wilken, Schmueser Christoph, Ahmed M. Shaban, Marwa H. Gaber, Gawel Solowski
Summary: This study compares the performance of polyamide and graphene oxide in reverse osmosis membranes. The results show that cross-linked polyvinyl alcohol hydrogel with a graphene oxide concentration of 0.25 wt% achieves the highest rejection percentage and permeate flux. Additionally, grafting the surface modification layer with methacrylic acid improves the membrane performance.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Eman S. Mansor, H. Abdallah, A. M. Shaban
Summary: In this study, polyvinyl alcohol (PVA) blended cellulose acetate (CA) membranes incorporated with nano-rods TiO2 (NRTiO2) were used for desalination. The addition of 0.5 wt% NRTiO2 resulted in increased membrane hydrophilicity and improved tensile strength. The optimized membrane showed a salt rejection of 99.52% and a flux increase of 34.2%.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Marwa S. Shalaby, Heba Abdallah, Ralph Wilken, Schmueser Christoph, Ahmed M. Shaban
Summary: Reverse osmosis (RO) membranes are a strategic tool for desalination and water treatment processes. Chlorine attack and fouling of polyamide layers hinder the widespread use of this technology. Surface modification through plasma or vacuum ultraviolet (VUV) irradiation has shown promise in improving chlorine resistance and antifouling properties.
Article
Engineering, Environmental
Sahar S. Ali, Rania Sabry, Hanaa M. Ali, Hanaa Gadallah, Eman S. Mansor, Heba Abdallah, Marwa Shalaby, A. M. Shaban
Summary: This study developed an integrated system for efficient outdoor membrane bioreactor system to achieve zero liquid discharge in pharmaceutical wastewater treatment. The system consists of a batch activated sludge process and an ultrafiltration membrane. Experimental results showed that the system has high efficiency in removing ASA drug from wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Eman S. Mansor, Heba Abdallah, A. M. Shaban
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)