Article
Chemistry, Multidisciplinary
Xiaobao Gong, Chunfeng Jin, Xiao-Yan Liu, Jianyong Yu, Shichao Zhang, Bin Ding
Summary: This study presents a novel strategy to develop true-nanoscale fibers with remarkable nanostructural characteristics and separation performances in areas of protective textiles, air filtration, and water purification. The obtained fibers have true-nanoscale diameters and the resultant membranes exhibit excellent properties.
Review
Engineering, Chemical
Mahdie Safarpour, Amir Safikhani, Vahid Vatanpour
Summary: This study provides an overview of recent developments in the application and modification of PVC membranes, highlighting various applications such as water and wastewater treatment, ion exchange, gas separation, pervaporation, electromembrane extraction, and composite membranes support. It reviews the preparation methods and applications of PVC membranes, as well as the modification methods to achieve desired morphology, performance, and stability, along with discussing the challenges and future perspectives of commercial PVC membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Roberto Castro-Munoz, Kumar Agrawal, Zhiping Lai, Joaquin Coronas
Summary: This article discusses the opportunities and challenges of using nanoporous materials for gas separation in emerging energy technologies, such as zeolites, metal-organic materials, and graphene derivatives. It emphasizes the need for improved porosity control of 2D materials and reduction in the selective membrane skin layer. The review also examines various membrane module configurations and process requirements, highlighting the promising future of scaled spiral wound and hollow fiber modules for CO2 and H2 separations. Lastly, the article provides valuable recommendations for researchers in the field.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Polymer Science
Ali Sallakh Niknejad, Saeed Bazgir, Ali Kargari
Summary: The development of robust membranes for commercial membrane distillation applications is crucial due to the high hydrophobicity requirements. By adding high-impact PS into the PS dope solution, flexible and superhydrophobic nanofibrous membranes with improved mechanical properties were successfully fabricated. The membranes showed excellent wetting resistance and high membrane distillation performance, suggesting a promising route for cost-effective and high-throughput fabrication of MD membranes.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Engineering, Environmental
Tijjani El-badawy, Mohd Hafiz Dzarfan Othman, Mohd Ridhwan Adam, Roziana Kamaludin, A. F. Ismail, Mukhlis A. Rahman, Juhana Jaafar, Saeid Rajabzadeh, Hideto Matsuyama, Jamilu Usman, Tonni Agustiono Kurniawan, Yusuf O. Raji, Stanley C. Mamah, Huda Abdullah
Summary: This study reports a modified dry-jet wet spinning process for braided hollow fiber membranes by introducing a loop-system to increase resident time in the coagulation bath. By varying the air gap, polymer concentration, and take-up speed, membranes with optimum filtration performance against crude oil emulsion feed were successfully produced.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Ohchan Kwon, Yunkyu Choi, Eunji Choi, Minsu Kim, Yun Chul Woo, Dae Woo Kim
Summary: The review discusses eight physical methods for the fabrication of GO membranes, categorizing them based on batch-unit or continuous production into five small-scale (vacuum filtration, pressure-assisted filtration, spin coating, dip coating, drop-casting) and three large-scale (spray coating, bar/doctor blade coating, slot die coating) approaches. Large-scale methods offer the advantage of continuous production which is not limited by equipment dimensions but rather material availability, while small-scale methods are restricted by the size of the fabrication device.
Review
Chemistry, Multidisciplinary
Nazanin Nasrollahi, Maryam Yousefpoor, Alireza Khataee, Vahid Vatanpour
Summary: This review introduces the properties, structures, and chemistry of polyurethane and urea bond, and reviews the research related to polymeric separation membranes. The versatility of polyurethane, with its various forms and easy production, makes it suitable for various membrane applications.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
V. Vatanpour, O. O. Teber, M. Mehrabi, I. Koyuncu
Summary: Membrane-based systems, especially those using polyvinyl alcohol (PVA), offer a solution to the increasing demand for clean water and energy. PVA exhibits excellent properties such as hydrophilicity, barrier property, and biodegradability, making it suitable for various membrane applications. The addition of PVA can enhance the permeability and antifouling properties of membranes.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Wei-Shi Sun, Ming-Jie Yin, Wen-Hai Zhang, Shuo Li, Naixin Wang, Quan-Fu An
Summary: The article discusses a green method for preparing high-efficiency CO2 capture membranes, where BPA and PEGMEA are UV-cross-linked to create high-performance membranes with exceptional CO2 permeability and selectivity, surpassing even the 2019 CO2/N-2 upper bound in separation performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Shuping Wu, Weijian Shi, Kanghui Li, Jiawei Cai, Chao Xu, Lei Gao, Jianwei Lu, Fuyuan Ding
Summary: A chitosan/polyvinylpyrrolidone/polyvinyl alcohol hollow nanofiber membrane (CS/PVP/PVA-HNM) was successfully synthesized via coaxial electrospinning, which showed remarkable permeability and adsorption separation. The CS/PVP/PVA-HNM had a pure water permeability of 4367.02 L·m(-2)·h(-1)·bar(-1). The hollow electrospun nanofibrous membrane had a continuous interlaced nanofibrous framework structure with high porosity and high permeability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Energy & Fuels
Anil Ronte, Phadindra Wagle, Ghader Mahmodi, Mounika Chevula, Shailesh Dangwal, Mohammad Reza Saeb, Jong Suk Lee, David N. Mcllroy, Seok-Jhin Kim
Summary: A thin ZIF-8 membrane was successfully synthesized using an effective vapor-phase technique, which involved converting a ZnO layer to ZIF-8. This membrane exhibited high selectivity and permeability for propylene/propane separation.
Review
Chemistry, Multidisciplinary
Haozhen Dou, Mi Xu, Baoyu Wang, Zhen Zhang, Guobin Wen, Yun Zheng, Dan Luo, Lei Zhao, Aiping Yu, Luhong Zhang, Zhongyi Jiang, Zhongwei Chen
Summary: Microporous framework membranes, including MOF membranes and COF membranes, offer great potential to address the tradeoff between membrane permeability and selectivity, making them promising candidates for future membrane technology. The past five years have seen a surge in novel membrane materials and applications in this field.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Polymer Science
Mauricio Jose Huhn-Ibarra, Maria Isabel Loria-Bastarrachea, Santiago Duarte-Aranda, Angel De Jesus Montes-Luna, Jesus Ortiz-Espinoza, Maria Ortencia Gonzalez-Diaz, Manuel Aguilar-Vega
Summary: Loose nanofiltration dual layer hollow fiber membranes were prepared using polyphenylsulfone and functionalized multiwalled carbon nanotubes. The incorporation of the nanotubes improved rejection of salts and dyes, as well as the antifouling properties of the membranes.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Physics, Condensed Matter
Fabrizia Foglia, Sandrine Lyonnard, Victoria Garcia Sakai, Quentin Berrod, Jean-Marc Zanotti, Gerard Gebel, Adam J. Clancy, Paul F. McMillan
Summary: Understanding transport mechanisms, implementing neutron scattering techniques, and combining different methods are crucial for designing and implementing advanced membrane technologies for fuel cells and separation devices.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Chemistry, Multidisciplinary
Justin J. Teesdale, Moonjoo Lee, Ruoxin Lu, Zachary P. Smith
Summary: Composite membranes with metal-organic framework (MOF)-dispersed polymers have gained attention, but reproducibility and variability in MOF synthesis and film manufacturing protocols hinder commercial viability evaluation. This study aims to address these uncertainties by synthesizing two samples of a prototypical MOF, UiO-66-NH2, with similar particle size but maximally different porosities. Composite membranes were prepared and tested, revealing unexpected differences in gas permeation and sorption capacity, highlighting the importance of replicate experiments for membrane preparation and testing.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)