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Article
Environmental Sciences
Hongli Xie et al.
Summary: Continuous discharge of industrial oily wastewater and frequent oil spill accidents have caused significant damage to the global environment and human health. A new strategy utilizing tannic acid (TA)-Ti(IV) coating and CaCO3-based biomineralization through inkjet printing process has been proposed to modify PVDF membranes, resulting in high hydrophilicity and underwater superoleophobicity. The optimized TA-Ti(IV)-CaCO3 modified membrane demonstrated excellent water permeation and separation efficiency for various oil/water emulsions, with high flux recovery and low fouling. This simple and cost-effective modification process shows great potential for oil/water emulsion separation/treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Chen Wang et al.
Summary: In this study, machine learning models were used to predict the performance of thin film nanocomposite (TFN) organic solvent nanofiltration (OSN) membranes in terms of relative permeability (RP) and relative selectivity (RS). Among the four models tested (linear, support vector machine, boosted tree, and artificial neural network), the boosted tree model demonstrated the highest prediction accuracy for membrane RP and RS. Parameter analysis identified the key factors influencing RP performance as nanoparticle loading, amine concentration, chloride concentration, water contact angle, solvent viscosity, and molar volume. For RS performance, nanoparticle loading, amine concentration, chloride concentration, and solute molecular weight played important roles. The study also highlighted the optimal conditions for TFN-OSN membrane fabrication and the impact of membrane surface properties on RP performance. Overall, this work contributes new insights into TFN-OSN membrane performance prediction and membrane design.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Xuewu Zhu et al.
Summary: The deep role and mechanism of post-treatment in thin-film composite nanofiltration membranes are investigated in this study. Four solutions of pure water, hexane, Na2CO3, and glycerol were used for post-treatment, and the performances of the resultant membranes were systematically studied. Hexane effectively removed residual acyl chloride groups and prevented the growth of polyamide layers, leading to the formation of smoother and thinner membranes with higher water permeance and excellent salt rejections. Hydrolysis and swelling of unstable polyamide fragments in solutions contributed to greater negative charge, higher hydrophilicity, and enlarged pore size. The resultant membranes exhibited significantly enhanced water permeance and comparable separation behaviors. In addition, the well-constructed membranes possessed superior ion selectivity, antifouling, and stability. The mechanisms of post-treatment on the performance enhancement were proposed from the perspective of interfacial interactions. This facile post-treatment strategy provides new insights into tailoring high-performance nanofiltration membranes for water treatment applications.
Article
Engineering, Chemical
Jiawei Fu et al.
Summary: Researchers have developed a novel thin-film composite nanofiltration membrane with a thin and crumpled polyamide selective layer using MXene-TiO2 as an interlayer. This membrane exhibits excellent permeability and desired rejection, making it promising for water reuse and desalination applications.
Article
Engineering, Chemical
Muhammad Tawalbeh et al.
Summary: Reverse osmosis (RO) membranes are widely used for their excellent water permeation rates and high salt rejection, but fouling remains a major issue. Various techniques, including pretreatment and cleaning, have been developed to minimize and control fouling. The development of antifouling and self-cleaning RO membranes has received significant attention. This review discusses the types and mechanisms of fouling, highlights factors influencing fouling in RO, and provides an overview of novel techniques for imparting antifouling and self-cleaning properties to RO membranes.
Article
Engineering, Chemical
Chen Wang et al.
Summary: The study presented the preparation of cross-linked multilayer PEI/GO nanofiltration membrane using inkjet printing assisted layer-by-layer assembly. The (PEI/GO)3 membrane showed the optimal separation performances with high permeability and selectivity. The membrane exhibited excellent rejection rates for different dyes and selectivity for different salts. Furthermore, (PEI/GO)3 membrane demonstrated desirable stability and long-term filtration stability.
Review
Engineering, Chemical
Tengteng Xie et al.
Summary: Thin-film nanocomposite (TFN) membranes based on polyamide (PA) chemistry are widely used for water purification and desalination due to improved water permeance. However, the aggregation of nanomaterials in the PA layer leads to non-selective defects and limits rejection efficiency. A promising solution is the use of interlayer-based TFN (iTFN) membranes, which contain a nanomaterial interlayer between the porous substrate and PA layer to enhance PA integrity and overcome the trade-off between permeability and selectivity. This review categorizes nanomaterial interlayers into three types and analyzes their effects on interfacial polymerization and water transport. Encouraging results demonstrate that using MOFs interlayer prepared by FAISA method is the most promising way to improve reverse osmosis membrane manufacturing.
Article
Engineering, Chemical
Ying Li et al.
Summary: This study investigates the influence of different manufacturing methods on the properties of polyamide membranes. The results show that membranes formed with 3D-printing and molecular layer-by-layer deposition have similar performances, while those formed with interfacial polymerization have faster water transport but poorer compressibility.
Article
Engineering, Chemical
Mei Qun Seah et al.
Summary: This study investigated the effect of interfacial polymerization temperature on the properties of thin film nanocomposite (TFN) nanofiltration membrane containing surface-functionalized graphene oxide (GO). The membrane developed at 55 degrees C exhibited a more cross-linked and rougher polyamide layer, resulting in excellent Na2SO4 rejection. However, it also had higher protein adhesion due to the rougher surface. On the other hand, the TFN membrane developed at 0 degrees C had a thin and smooth polyamide layer, resulting in higher water flux and improved antifouling performance.
Article
Engineering, Chemical
Pengfei Li et al.
Summary: In this study, a high-performance nanofiltration membrane with FeOOH nanorods as interlayers was successfully synthesized. The nanorods not only increased the water transport paths and mechanical strength of the membrane, but also enhanced the hydrophilicity and compactness of the substrate, resulting in a thinner polyamide layer.
Article
Engineering, Chemical
Hongbin Li et al.
Summary: This paper reviews the various aspects of biofouling in PA RO membranes, including its causes, theories, and mechanisms. It also summarizes the development and trends of membrane cleaning and different RO pretreatment technologies. The progress in antifouling surface construction and comparison of antibiofouling modification strategies are discussed. The challenges, technical issues, and future research directions in mitigating RO membrane biofouling are highlighted.
Article
Energy & Fuels
Yulin Wang et al.
Summary: The study proposed a tapered flow field configuration to enhance the performance of polymer electrolyte membrane fuel cells by improving oxygen transport and water removal. Numerical investigations showed that different LI/O ratios had varying effects on oxygen transport, water removal, and overall cell performance, with an optimal design exhibiting more uniform distributions and improved performance.
Article
Engineering, Environmental
Fanglei Zhou et al.
Summary: In this study, a fast and scalable method using co-solvent ink-jet printing was successfully employed to prepare large-area, ultrathin, high-quality GO membranes for gas separation applications. The printed GO membrane demonstrated selective transport for hydrogen and helium over carbon dioxide and nitrogen, showing great potential for large-scale production of GO-based gas separation membranes and versatile use of other 2-dimensional materials for membrane applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Daniel James Johnson et al.
Summary: Much research has been done in recent years on the use of nanomaterials as fillers in polymeric nanofiltration membranes to improve water transport and fouling resistance. This field is still immature and requires further research.
Article
Engineering, Chemical
P. S. Goh et al.
Summary: In recent years, the harmful effects of saline wastewater discharge have garnered public concerns, prompting the use of membrane technology for treatment and resource recovery. Pressure-driven, osmotically-driven, thermally-driven, and electrically-driven membrane processes each have unique features and limitations that can contribute to improving treatment efficiency and sustainability.
Article
Engineering, Environmental
Haiping Gao et al.
Summary: This study introduces a novel strategy for designing polymeric membranes using machine learning and Bayesian optimization to identify optimal monomer and fabrication condition combinations to surpass existing limits in water/salt selectivity and permeability. Experimental results demonstrate that this approach exceeds current technological boundaries and opens up new possibilities for next-generation separation membrane design.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Chemical
Chen Wang et al.
Summary: This study explores the use of inkjet printing to fabricate polyelectrolyte multilayer membranes for organic solvent nanofiltration. The membranes showed enhanced stability and performance with the incorporation of single-walled carbon nanotubes. The best performing membrane (PEI/PSS-CNT)(10) exhibited stable performance and high permeances for various solvents.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Andreas Willert et al.
Summary: This study focuses on developing innovative strategies for inkjet printing of Catalyst Coated Membranes (CCM) without using intermediate substrates to enhance the performance of Polymer Electrolyte Membrane Fuel Cells (PEMFC). By utilizing three different inkjet printing approaches, the catalyst and membrane layers achieved uniformity and demonstrated better electrochemical performance compared to conventionally made assemblies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Xiaoquan Feng et al.
Summary: In this review, the concept of loose nanofiltration (NF) is discussed, focusing on its selective separation performance for dyes and salts. The recent advances in designing highly selective membranes for dye/salt separation are summarized, including interfacial polymerization, phase inversion, and surface locating. Different types of materials, such as nanoparticles, two-dimensional materials, ionic liquids, and advanced porous materials, are analyzed as attractive candidates for membrane technology. The challenges and future directions of loose nanofiltration are also addressed.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Baye Gueye Thiam et al.
Summary: The review compares the production of polymer membranes using traditional methods and additive manufacturing in terms of cost, materials, structures, properties, performance, and environmental impact. Results indicate that 3D-printed membranes use fewer materials, show acceptable performance, better structures, and less environmental impact compared to conventional membranes.
Article
Chemistry, Analytical
San Kim et al.
Summary: Experimental and numerical analysis were conducted to study the jetting characteristics and meniscus motion of drop-on-demand inkjet under the control of ink supply pressure. The results showed that the drop volume and velocity were linearly proportional to the voltage change. Decreasing ink supply pressure reduced the speed and volume, improved the damping of residual vibrations, and suppressed satellite drops, indicating the potential for improving stability and productivity of inkjet printing.
Article
Engineering, Chemical
Yu Jie Lim et al.
Summary: This study analyzes the specific energy consumption (SEC) and footprints of ultra-permeable membranes (UPMs) under different salinity conditions, and suggests that hollow fiber and spiral-wound UPMs can achieve energy savings in seawater desalination and brackish water or low-pressure desalination processes, respectively. It provides guidance for RO membrane researchers to determine the upper-limit of UPM permeability at a system level.
Article
Engineering, Chemical
Chen Wang et al.
Summary: A novel layer-by-layer organic solvent nanofiltration membrane was developed using inkjet printing technique. The membrane showed high mechanical and chemical stability and exhibited promising applications in the pharmaceutical and hemp industries. The effects of polyethyleneimine and single walled carbon nanotube concentrations, bilayer numbers, and crosslinking conditions on the membrane performance were evaluated.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Myoung Jun Park et al.
Summary: This study demonstrates the fabrication of waste-free thin film composite polyamide membranes using inkjet printing, which shows higher performance compared to traditional methods.
Article
Engineering, Chemical
Mengjiao Xia et al.
Summary: In this study, a facile and controllable one-pot synthesis of novel ZIF-8@TA core-shell NPs was demonstrated. These NPs were used as an interlayer in polyamide nanofiltration membranes. Compared with single-component interlayers, the novel ZIF-8@TA interlayer showed improved dispersion and hydrophilicity, resulting in enhanced performance of the polyamide membranes.
Article
Engineering, Chemical
Hongli Xie et al.
Summary: The wettability of membranes is crucial for treating oily wastewater. This study proposes a facile method using inkjet printing to optimize the tannic acid-based membrane modification process. By synergistically inducing tannic acid deposition with Fe3+ and SP, the hydrophobic polyvinylidene fluoride (PVDF) membrane is converted to a hydrophilic and underwater oleophobic membrane with high flux and separation efficiency. The optimized membrane also exhibits high antifouling property, reusability, and stability under near neutral pH conditions.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Chen Wang et al.
Summary: This review comprehensively investigates the latest research achievements of nanocomposite membranes prepared by layer-by-layer (LBL) assembly. Different fabrication methods are introduced, and the applications and challenges of nanocomposite membranes in various separation areas are summarized.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Nanoscience & Nanotechnology
A. Knebel et al.
Summary: This critical Review discusses the molecular sieving behavior of metal-organic framework (MOF) and covalent organic framework (COF) membranes, which differs from classical zeolite membranes. MOFs and COFs offer synthetic access to a wide range of structures and tailor-made molecular gates. The controllable gas transport and compatibility with polymers make MOFs and COFs suitable for mixed-matrix membranes. The ability to react to stimuli allows for exploitation of the non-ideality of molecular sieving properties in a novel research direction.
NATURE NANOTECHNOLOGY
(2022)
Article
Environmental Sciences
Sharafat Ali et al.
Summary: Organic solvent nanofiltration (OSN) is a promising technology for separating organic solvents in various industries. This review examines the use of nanomaterials, such as COFs, MOFs, MOs, and CBMs, in OSN membranes. The advances in nano-based OSN membranes, including TFN membranes and MMMs, are discussed, as well as the challenges and recommendations for further research in this field.
Article
Engineering, Chemical
Peng Cheng et al.
Summary: In this study, a high-performance thin-film nanocomposite (TFN) membrane was constructed by regulating the thickness of Metal-Organic Frameworks (MOFs) interlayer. The optimized membrane displayed excellent water permeance and selectivity, providing a promising strategy for fabricating TFN membranes with higher selectivity and enhanced comprehensive performance.
Review
Chemistry, Multidisciplinary
Lina Nie et al.
Summary: The research on organic solvent nanofiltration technology, especially using graphene-based membranes, has shown great potential in addressing the issue of excessive organic solvent waste. Future focus should be on the challenges and development directions of graphene-based membranes in industrial applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Chemical
Allan Soo et al.
Summary: In recent years, there has been a growing interest in the application of 3D printing in water treatment and desalination. However, current limitations faced by 3D printing technologies in this field include resolution, build volume, production rates, appropriate materials, among others. Future directions should be based on current trends in membrane research and 3D printing technologies to overcome these barriers.
Article
Engineering, Chemical
Chen Wang et al.
Summary: This study modified a thin film composite (TFC) nanofiltration (NF) membrane by coating a binding agent polydopamine (PDA) and graphene oxide (GO) using inkjet printing technology, improving salt rejection and addressing chlorine stability and fouling issues. The results demonstrated higher salt rejection and lower fouling for the PDA-GO printed NF membrane compared to the control membrane, showcasing the potential of inkjet printing for advanced nanomaterial based membrane formation with controllable properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Energy & Fuels
Qin Chen et al.
Summary: This review summarized recent progress in thermal management of Proton Exchange Membrane (PEM) fuel cells, focusing on waste heat generation mechanisms, cooling methods, cold starts, material properties, and durability. The challenge of cooling PEM fuel cell stacks and coupling thermal and water managements is discussed, along with proposed future directions for research.
Article
Engineering, Chemical
Renjie Li et al.
Summary: The study proposed a method using inkjet printing and UV irradiation to modify mussel-inspired polyvinylidene fluoride membrane, demonstrating improved oil-water separation performance and stability under different pH values.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Myoung Jun Park et al.
Summary: This study demonstrated the synthesis of a thin film composite membrane using inkjet printing to deposit single-walled carbon nanotubes, resulting in a membrane with high water flux and salt rejection rates. The controlled deposition of SWCNT provided a highly porous interlayer that led to the formation of a defect-free ultrathin selective layer, showing significant improvement in NF membrane performance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Review
Chemistry, Physical
Hosni Ahmed Elwan et al.
Summary: Protic ionic liquids are receiving increasing research attention due to their versatile properties, particularly as ideal electrolytes for proton exchange membrane fuel cells. Blending various polymers with protic ILs to form solid films for PEMFCs has been explored. Five conventional polymers combined with protic ILs are discussed in detail, along with other polymers used in PEMs based on protic ILs, to provide comprehensive coverage in this area of research.
JOURNAL OF POWER SOURCES
(2021)
Review
Environmental Sciences
Abdullah Khalil et al.
Summary: 3D printing has gained significant attention in water treatment and desalination applications due to its unmatched flexibility in material selection, design, and scalability. It has been used to improve energy efficiency and productivity in existing technologies, offering customized materials and designs for better performance. The challenges include overcoming fouling and increasing production efficiency, while future research directions focus on exploring the full potential of 3D printing in the water desalination industry.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Chemical
Chen Wang et al.
Summary: There is a growing interest in organic solvent nanofiltration (OSN) due to the high energy consumption and cost involved in conventional solvent recovery processes. However, challenges such as low solvent permeate flux, low stability of polymeric membranes, and control of membrane properties suited for various solvent separation have been identified. To address these challenges, chemically stable nanomaterials are being used in nanocomposite membrane fabrication for OSN applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Insung Bae et al.
Review
Engineering, Chemical
N. H. Ismail et al.
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
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Environmental Sciences
Renjie Li et al.
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Multidisciplinary Sciences
Guohua Hu et al.
Review
Chemistry, Multidisciplinary
Numan Yanar et al.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2020)
Review
Engineering, Environmental
Henry J. Tanudjaja et al.
Article
Materials Science, Multidisciplinary
Carlos Andre Gomes Bezerra et al.
ADVANCED ENGINEERING MATERIALS
(2019)
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Chemistry, Physical
Renjie Li et al.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2019)
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Energy & Fuels
Jian Zhao et al.
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Min Wang et al.
ACS APPLIED ENERGY MATERIALS
(2019)
Review
Engineering, Electrical & Electronic
Kai Li et al.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2018)
Article
Pharmacology & Pharmacy
Yasmin Thabet et al.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2018)
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Roy Bernstein et al.
JOURNAL OF MEMBRANE SCIENCE
(2018)
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Qiang Li et al.
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(2018)
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Electrochemistry
Manas Mandal et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
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Multidisciplinary Sciences
Maqsud R. Chowdhury et al.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2017)
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JOURNAL OF MEMBRANE SCIENCE
(2017)
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Chemistry, Physical
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JOURNAL OF POWER SOURCES
(2017)
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Chemistry, Physical
Mahdi Fathizadeh et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2017)
Review
Materials Science, Multidisciplinary
Jian-Yuan Lee et al.
APPLIED MATERIALS TODAY
(2017)
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Nanoscience & Nanotechnology
Peng Gao et al.
ACS APPLIED MATERIALS & INTERFACES
(2016)
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Engineering, Chemical
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JOURNAL OF MEMBRANE SCIENCE
(2016)
Review
Biochemistry & Molecular Biology
Ashkan Shafiee et al.
TRENDS IN MOLECULAR MEDICINE
(2016)
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Engineering, Chemical
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JOURNAL OF MEMBRANE SCIENCE
(2015)
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Chemistry, Multidisciplinary
Yanglu Guo et al.
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Chemistry, Physical
Matthias Klingele et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2015)
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Electrochemistry
Zhuqing Wang et al.
ELECTROCHIMICA ACTA
(2014)
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Materials Science, Multidisciplinary
Ryan D. Boehm et al.
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Chemistry, Physical
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2012)
Editorial Material
Chemistry, Physical
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JOURNAL OF MATERIALS CHEMISTRY
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Engineering, Manufacturing
Mamoru Okano et al.
JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING
(2010)
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Materials Science, Multidisciplinary
Hermann Tempel et al.
MATERIALS CHEMISTRY AND PHYSICS
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Engineering, Biomedical
T Xu et al.
Review
Chemistry, Physical
P Calvert
CHEMISTRY OF MATERIALS
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