Article
Engineering, Chemical
Xiaofan Luo, Zhenggong Wang, Shanshan Wu, Wangxi Fang, Jian Jin
Summary: This study successfully prepared a new generation of OSN membranes through metal ion cross-linking, which exhibit excellent stability in various organic solvents and high rejection rates to dyes. Compared to traditional chemical cross-linkers, metal ion cross-linking does not significantly reduce membrane permeability, and also improves membrane compaction resistance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Review
Environmental Sciences
Vahid Vatanpour, Mehmet Emin Pasaoglu, Hossein Barzegar, Oguz Orhun Teber, Recep Kaya, Muhammed Bastug, Alireza Khataee, Ismail Koyuncu
Summary: Developing biodegradable polymers for filtration membrane fabrication is a major challenge in membrane science and technology. Cellulose acetate (CA) membranes, with their excellent film-forming property, chemical and mechanical stability, hydrophilicity, eco-friendliness, and cost-effectiveness, have been extensively used in various applications such as water and wastewater treatment, gas separation, and energy generation. Recent research has focused on modifying CA to improve permeability and stability.
Article
Engineering, Chemical
Hao-Ren Yang, Yueh-Han Huang, Chih-Feng Wang, Tai-Shung Chung
Summary: This study explores the use of TEP as a green solvent to fabricate superhydrophobic PVDF membranes, which exhibit higher flux in treating high salinity solutions.
Review
Polymer Science
Zhuyuan Wang, Songmiao Liang, Yuan Kang, Wang Zhao, Yun Xia, Jindi Yang, Huanting Wang, Xiwang Zhang
Summary: This article discusses the importance of composite separation membranes in various fields and the dominance of liquid to liquid interfacial polymerization in synthesizing high quality polymeric nanofilms, while also addressing the challenges associated with this technique.
PROGRESS IN POLYMER SCIENCE
(2021)
Article
Engineering, Chemical
Sandra L. Aristizabal, Ryan P. Lively, Suzana P. Nunes
Summary: The transition to a sustainable economy requires a more effective and less energy-intensive industry. Membrane technology, such as organic solvent nanofiltration and reverse osmosis, can reduce energy, carbon, and water intensity in industries such as petrochemical, pharmaceutical, food, and fine chemical. Polymeric membranes offer key advantages in scalability and processability, although there is potential for game-changing performance with hybrid and inorganic materials.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Biochemistry & Molecular Biology
Pei Sean Goh, Mohd Hafiz Dzarfan Othman, Takeshi Matsuura
Summary: As economic and social activities grow rapidly, environmental degradation due to waste production and disposal has become a pressing issue. Recycling waste for membrane fabrication is seen as a promising strategy to achieve sustainable and green production, offering numerous benefits in multiple ways.
Article
Engineering, Chemical
Peng Du, Jieyu Song, Xuerui Wang, Yuting Zhang, Jixian Xie, Gang Liu, Yongli Liu, Zhenwei Wang, Zhou Hong, Xuehong Gu
Summary: Efficient hydrogen separation is crucial from the cracked tail gas of ethylene plant. DD3R zeolite membranes were developed for this purpose, showing high selectivity and stability under harsh conditions. The efficient scale-up synthesis method led to the production of high-quality membranes suitable for industrial applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Sandra L. Aristizabal, Lakshmeesha Upadhyaya, Gheorghe Falca, Abaynesh Yihdego Gebreyohannes, Mohammed Omer Aijaz, Mohammad Rezaul Karim, Suzana P. Nunes
Summary: Polyaryletherketones (PAEKs) are ultrahigh performance polymers with exceptional temperature and chemical resistance. The processability of these polymers is a major concern, but this study presents a modification-regeneration strategy to prepare porous Kepstan (R) and PEEK membranes, offering a new approach for the application of PAEKs.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Engineering, Chemical
Wenbei Chen, Xin Qiu, Yuting Chen, Xiaoping Bai, Huixian Liu, Jian Ke, Yibing Ji, Jianqiu Chen
Summary: This review provides a systematic synthesis and comparative analysis of different preparation processes for chiral membranes, aiming to foster further advancements in chiral membrane research.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Dmitry Matveev, Vladimir Vasilevsky, Vladimir Volkov, Tatiana Plisko, Anton Shustikov, Alexey Volkov, Alexandr Bildyukevich
Summary: In recent years, there has been increased focus on the sustainability and environmental safety of existing processes and materials. Membrane separation is seen as an attractive alternative to conventional methods due to its higher energy efficiency and smaller carbon footprint. However, the organic solvents commonly used in producing polymeric membranes are hazardous and toxic. Dimethylsulfoxide (DMSO), a non-toxic solvent, is considered a promising alternative. This study systematically investigates the use of DMSO as a green solvent for fabricating ultrafiltration membranes. The viscosity of the polymer solution was found to significantly impact the resulting membrane morphology and performance. Replacing the traditional solvent DMF with non-toxic DMSO led to membranes with improved overall performance in terms of pure water flux and rejection.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Monica Morales-Jimenez, Daniel A. Palacio, Manuel Palencia, Manuel F. Melendrez, Bernabe L. Rivas
Summary: This review focuses on bio-based polymeric membranes as an alternative to address the environmental concerns associated with the use of polymeric materials of fossil origin in membrane manufacturing. The fabrication of bio-based polymeric membranes is discussed, including the selection of bio-based polymers, preparation methods, additive utilization, green solvent exploration, and membrane characterization. The advantages and disadvantages of bio-based polymeric membranes are also addressed, along with their application in the recovery of organic and inorganic contaminants.
Review
Engineering, Chemical
Vahid Vatanpour, Baris Kiskan, Bihter Zeytuncu, Ismail Koyuncu
Summary: The demand for new materials for fabricating polymeric membranes is increasing, requiring materials with high chemical, mechanical and thermal resistance to improve membrane separation performance. Polybenzoxazines (PBzs) show promise in fabricating high performance membranes, with properties that can be easily modified by altering monomers. PBz-based membranes are successfully used in harsh conditions such as high temperature, strong acidic environments or solvent filtration, showcasing their high performance and antifouling capacity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Priscila Vedovello, Caio Marcio Paranhos, Carla Fernandes, Maria Elizabeth Tiritan
Summary: The development of chiral compounds has mainly been driven by the increasing demand in pharmaceutical applications, but is also expanding to other industries. Enantiomerically pure compounds are considered more effective and safe, and the use of solid polymeric membranes for enantioselective separation shows promise due to its cost-effectiveness and diverse material options.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yang Han, W. S. Winston Ho
Summary: This review discusses the fundamentals of CO2/gas separation in polymeric membranes and explores the opportunities and challenges for various applications such as post-combustion carbon capture, hydrogen purification, and gas sweetening. It also highlights emerging polymeric membrane materials and promising candidates for CO2 separation applications, while comparing permeability-selectivity data against their upper bounds in 2008 and 2019.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Rifan Hardian, Abdulaziz Alammar, Tibor Holtzl, Gyorgy Szekely
Summary: Membrane technologies have shown promise as an energy-efficient alternative for separation processes in various industries. This study focuses on the fabrication of oil and solvent-resistant nanofiltration membranes using cellulose and chitosan blends. The membranes exhibited outstanding separation performance and chemical stability, even in harsh solvents. By adjusting the cellulose-chitosan ratio, the molecular sieving properties of the membranes could be fine-tuned. The membranes also showed biodegradation potential, contributing to the sustainable lifecycle of membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Joyner Eke, Lillian Banks, M. Abdul Mottaleb, Andrew J. Morris, Olga V. Tsyusko, Isabel C. Escobar
Summary: Nanomaterials with tunable properties offer potential for developing environmentally safe approaches to remove and degrade harmful chemicals like PFAS, especially crucial for treatment of drinking water. This study demonstrated the fabrication of nanocomposite membranes with SPEEK and phosphorene which achieved high rejection and removal rates of PFOA, showing promise for safe and efficient remediation methods for PFAS in water treatment.
Article
Engineering, Chemical
Francisco Leniz-Pizarro, Chunqing Liu, Andrew Colburn, Isabel C. Escobar, Dibakar Bhattacharyya
Summary: The study successfully created positively charged nanofiltration membranes by adding PAH, which exhibited high and stable lanthanides retentions, demonstrating the potential for high selective separation.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Paper & Wood
Ejaz Haque, Shadi Shariatnia, Tae-Joong Jeong, Dorrin Jarrahbashi, Amir Asadi, Tequila Harris, Robert J. Moon, Kyriaki Kalaitzidou
Summary: Two scalable coating techniques, slot die and spray coating, were used to apply cellulose nanocrystals to glass fiber surfaces to enhance interfacial interactions and strength of fiber-reinforced composites. Results showed that both scalable methods outperformed the laboratory-scale dip coating technique, with spray coating showing superior performance.
Article
Chemistry, Applied
Peter R. Griffiths, Tequila A. L. Harris
Summary: This research aims to address the complex problem of establishing process-structure links in microparticle composite thin films through reduced-order spatial models and machine learning algorithms. Methods such as two-point particle autocorrelation statistics and principal component analysis were used to capture variations in microstructure, showing that predictive process-structure links can be achieved through Gaussian process regression. However, consideration of image size is necessary to ensure convergence in spatial statistics for increased accuracy.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2022)
Review
Polymer Science
Ebuka A. Ogbuoji, Amr M. Zaky, Isabel C. Escobar
Summary: The COVID-19 pandemic has increased the demand for masks as a method to reduce virus transmission, even with the availability of vaccines. Research on mask efficiency and material properties has increased, but there are challenges in testing protocols and evaluating methods.
Article
Food Science & Technology
Abelline Fionah, Cannon Hackett, Hazim Aljewari, Laura Brady, Faisal Alqhtani, Isabel C. Escobar, Audie K. Thompson
Summary: This study proposes a novel strategy for remediating MC-LR contaminated water by linearizing the toxin using MlrA enzyme and removing it through membrane filtration. The results demonstrate the successful linearization of MC-LR and efficient removal through membrane filtration. This research provides a new approach for mitigating microcystin contamination in water.
Article
Polymer Science
David Lu, Parto Babaniamansour, Alex Williams, Kassandra Opfar, Parker Nurick, Isabel C. Escobar
Summary: This study used recycled polyethylene terephthalate (rPET) and a solvent blend of Rhodiasolv (R) PolarClean (PolarClean) and gamma-valerolactone (GVL) as eco-friendly materials to fabricate polysulfone (PSf) ultrafiltration membranes. The results showed that these materials have the potential to replace traditional materials in polymeric membrane fabrication.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Ebuka A. Ogbuoji, Lauren Stephens, Amber Haycraft, Eric Wooldridge, Isabel C. Escobar
Summary: In this study, single layer polysulfone (PSf) membranes were fabricated and tested for airflow rate and pressure drop. The results showed that an increase in PSf and PEG molecular weight and concentration can increase airflow and decrease pressure drop.
Article
Nanoscience & Nanotechnology
Kwangjun Jung, Yue Ji, Tae-Joong Jeong, Peter N. Ciesielski, J. Carson Meredith, Tequila A. L. Harris
Summary: This study explores the feasibility and performance of dual-layer slot die coating technology in preparing cellulose acetate substrates with cellulose nanofiber/chitin bilayer films. The results show that the dual-layer slot die method has lower oxygen permeability compared to the spray coating method, and chitin nanofibers contribute positively to wetting and barrier properties.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Amirsalar R. Esfahani, Chen Ma, Uwezo A. Flewellen, Sankar Nair, Tequila A. L. Harris
Summary: This article discusses the fabrication and characterization of reduced graphene oxide (rGO) nanofiltration membranes by slot die coating on a roll-to-roll (R2R) platform, and presents their microstructure and uniformity. The membranes demonstrate excellent ion rejection performance in black liquor under high temperature, high salt, and high alkaline conditions.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Ebuka A. Ogbuoji, Anastasia Myers, Amber Haycraft, Isabel C. Escobar
Summary: The potential of flat sheet polymeric membranes for reusable facemask filters was investigated by analyzing the effect of common face mask regeneration processes. The results showed that the polymeric membranes had higher aerosol filtration efficiency compared to surgical masks and N95 masks.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Abelline Fionah, Kate McLarney, Aviana Judd, Isabel C. Escobar
Summary: The global water crisis has led to increased research on membrane technology, which is favored for water treatment due to its chemical-free operation and low temperature capabilities. The high demand for membranes that reject contaminants and salts while requiring minimal cleaning remains a challenge, as most synthesized membranes suffer from fouling, inverse flux-solute rejection relationships, and high costs. This study focused on improving the performance of polysulfone membranes by incorporating sulfonate-functionalized poly-ether-ether-ketone (SPEEK). The results showed that incorporating SPEEK into the membranes increased hydrophilicity and allowed for ion rejection through charge repulsion.