Download or read book Surface Modification of Polymeric Membranes and Silicon Filters written by Yuchun Wang and published by . This book was released on 1998 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Engineering of Polymer Membranes written by Zhi-Kang Xu and published by Springer Science & Business Media. This book was released on 2009-05-15 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Engineering of Polymer Membranes covers the processes that modify membrane surfaces to improve their in-service performance, meaning, to confer surface properties which are different from the bulk properties. Purposes may be to minimize fouling, modulate hydrophilicity/ hydrophobicity, enhance biocompatibility, create diffusion barriers, provide functionalities, mimic biomembranes, fabricate nanostructures, etc. First, the basics of surface engineering of polymer membranes are covered. Then topics such as surface modification by graft polymerization and macromolecule immobilization, biomimetic surfaces, enzyme immobilization, molecular recognition, and nanostructured surfaces are discussed. This book provides a unique synthesis of the knowledge of the role of surface chemistry and physics in membrane science. Dr. Zhikang Xu of the Institute of Polymer Science of Zhejiang University has eight Chinese patents and in 2006 was honored as a Distinguished Young Scholar by the National Natural Science Foundation of China (NNSFC).
Download or read book Polymer Membranes In Biotechnology Preparation Functionalization And Application written by Seeram Ramakrishna and published by World Scientific Publishing Company. This book was released on 2011-02-21 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a concise and comprehensive introduction of polymer membranes' preparation, functionalization and applications in biotechniques including affinity membrane chromatography, membrane-based biosensor and membrane-based bioreactor.Following an introduction to the general concept of membrane separation in Chapter 1, preparation of polymeric membranes is discussed in Chapter 2. The book then describes in Chapter 3 membrane surface activation, which is a key step in ligand immobilizations. Chapter 4 focuses on ligand immobilization techniques and the organic chemistries behind them. Chapter 5 introduces the application of affinity membrane chromatography. Finally, in Chapter 6, membranes used in biosensors and gas sensors, enzymatic membranes used as biosensor, and membrane biosensor for waste water treatment will be discussed.A novel filter medium, i.e. nonwoven nanofiber membrane, and its preparation method, i.e. electrospinning technique, are also introduced in this book./a
Download or read book Membrane Modification written by Nidal Hilal and published by CRC Press. This book was released on 2016-04-19 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane Modification: Technology and Applications is written for engineers, scientists, graduate students, and researchers in the field of membrane science and technology, materials science, applied physics, chemistry, and environmental science. The book presents the complete range of membrane modification techniques used to increase efficiency of
Download or read book Layer by Layer Nano particle Only Surface Modification of Filtration Membranes written by Luis Escobar-Ferrand and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Layer by Layer (LbL) deposition using primarily inorganic silica nanoparticles is employed for the modification of polymeric micro and ultrafiltration (MF/UF) membranes to produce thin film composites (TFC) with potential nanofiltration (NF) and reverse osmosis (RO) capabilities.. A variety of porous substrate membranes with different membrane surface characteristics are employed, but exhibiting in common that wicking of water does not readily occur into the pore structure, including polycarbonate track etched (PCTE), polyethersulfone (PES) and sulfonated PES (SPEES) MF/UF membranes. Both spherical (cationic/anionic) and eccentric elongated (anionic) silica nanoparticles are deposited using conditions similar to those reported by Lee et al.1 Appropriate selection of the pH's for anionic and cationic particle deposition enables the construction of nanoparticle only layers 100 -1200 nm in thickness atop the original membrane substrates. The surface layer thickness varies monotonically with the number of bilayers (anionic/cationic deposition cycles) as expected.
Download or read book Polymeric Membrane Synthesis Modification and Applications written by Chandan Das and published by CRC Press. This book was released on 2018-10-12 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membranes and membrane separation techniques have grown from a simple laboratory tool to an industrial process with considerable technical and commercial impact. The book deals with both the fundamental concepts of preparation, characterization and modification, practical applications along with recent advancements of electro-spun and phase inverted polymeric membranes. Divided into two parts, part one of this book covers the fundamental concepts and practical applications of novel electro-spun membranes while the latter covers basic concepts and further advancements of the conventional phase inverted membranes extensively. Key Features Covers fundamental concepts and practical applications of electro-spun and phase inverted polymeric membranes Includes general properties, characterization, preparation and modification of polymeric membranes Discusses advanced modification of polymeric membranes (functionalization, grafting) using phase inversion process, and effects of solubility parameter and additives on the phase inversion process Reviews electro-spun membranes for biomedical applications, industrial effluents treatment and removal of water contaminants Explores a separate economic analysis section for the discussed membranes
Download or read book Surface Modification of Polymer Membranes by Self organization written by Jonathan Forrest Hester and published by . This book was released on 2001 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymeric Membranes for Water Purification and Gas Separation written by Rasel Das and published by Materials Research Forum LLC. This book was released on 2021-11-25 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various organic and synthetic polymers are important materials for the removal of organic and inorganic pollutants from wastewater and the separation of gases. The book discusses various types of membranes for microfiltration, ultrafiltration, nanofiltration, reverse osmosis, forward osmosis etc. A number of nanomaterials are available for the modification of polymeric membranes. Keywords: Polymeric Membrane, Water Purification, Water Softening, Water Desalination, Gas Separation, Osmosis Membranes, Microfiltration, Ultrafiltration, Nanofiltration, Carbon Nanotube, Nanosheets, MOFs, Porous Organic Cages, Titanium Dioxide, Zinc Oxide, Mesoporous Silica Nanoparticles, O2/N2 Separation, CO2/CH4 Separation, H2/N2 Separation.
Download or read book Surface Engineering of Polymer Membranes written by Zhi-Kang Xu and published by Springer. This book was released on 2009-08-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Engineering of Polymer Membranes covers the processes that modify membrane surfaces to improve their in-service performance, meaning, to confer surface properties which are different from the bulk properties. Purposes may be to minimize fouling, modulate hydrophilicity/ hydrophobicity, enhance biocompatibility, create diffusion barriers, provide functionalities, mimic biomembranes, fabricate nanostructures, etc. First, the basics of surface engineering of polymer membranes are covered. Then topics such as surface modification by graft polymerization and macromolecule immobilization, biomimetic surfaces, enzyme immobilization, molecular recognition, and nanostructured surfaces are discussed. This book provides a unique synthesis of the knowledge of the role of surface chemistry and physics in membrane science. Dr. Zhikang Xu of the Institute of Polymer Science of Zhejiang University has eight Chinese patents and in 2006 was honored as a Distinguished Young Scholar by the National Natural Science Foundation of China (NNSFC).
Download or read book Surface Modification of Polymeric Biomaterials written by Buddy D. Ratner and published by Springer Science & Business Media. This book was released on 1997-02-28 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the American Chemical Society Division of Polymer Chemistry International Symposium held in Anaheim, California, April 2-6, 1995
Download or read book Surface Engineering of Polymer Membranes written by Zhikang Xu and published by . This book was released on 2009 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Surface Modification and Incorporation of Inorganic Nanowires and Particles for Enhanced Performance of Water filtration Polymer Membranes written by Yi Feng and published by . This book was released on 2015 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water treatment is, collectively, the industrial-scale processes that make water more acceptable for an end-use, which may be drinking, industry, or medicine. Due to the increasingly severe water shortage problem and growing concerns on the water quality, water treatment, which is closely relative to daily life, has always been placed under the spotlight of scientific research so far. Conventionally, water has been treated primarily using physical-chemical treatment such as sand filtration and disinfection. Not only these conventional methods required large area of operations that would require high operational cost, but may also be incapable to treat several persistence pollutants.Membrane separation is a technology which selectively separates (fractionates) materials via pores and/or minute gaps in the molecular arrangement of a continuous structure. Membrane separation has many advantages such as no chemical addition, small operation area, relatively high filtration efficiency, low cost and et al. Not only that, the stringent standard required for water supply and effluent discharge also promotes the innovative development of separation membranes and membrane separation process. Based on the type of material, membranes can be classified into polymeric membranes and inorganic membranes. Despite the fact that some polymeric membranes have already been commercialized and emerged as a favourable filter media for water treatment, there are still several limitations such as relatively low flowrate, low antifouling property and low mechanical properties. Therefore, many additives have been added into polymeric membranes to synthesize polymer-based composite membranes to tackle these problems and to further enhance the efficiency of water treatment. In this thesis, three different types of materials have been chosen as additives to incorporate into microfiltration or ultrafiltration polymeric membranes, aiming to enhance the water treatment performance. The first type of materials is germanate nanowires with different lengths. We for the first time found that the lengths of nanowires play a key role in determining the morphology change and subsequent water treatment performance; thus by controlling the length, we successfully obtains nanowire-enhanced polymeric membranes with fast permeation at the maintenance of rejection. In the second part, we developed a simple, economic and practical method to coat cheap chitosan onto the top of polymeric membranes. Though such membranes show a slight decrease of flux, the rejection, antifouling property and antibacterial property were greatly improved. Theoretical calculation shows that the weakened bonding between foulant and membrane surface resulting from chitosan-grafting is responsible for the improved antifouling property. The third type of material is alumina particles. The main purpose of this part is to study how inorganic particle size and loading affect the morphology change, performance and mechanical property of polymeric membranes with hollow shape. Results show that such inorganic particle/polymeric membranes have higher tensile and compressive properties compared to the pristine polymeric membranes and both particle size and particle loading matters in determining the improvement of mechanical properties. Despite the improvement in mechanical properties, the rejection of such membranes was greatly sacrificed due to the detachment of particles from polymer during the formation of membranes, especially when high-loading micron-sized alumina was used. Therefore, CNTs were further added into high loading micron-sized alumina/polymeric membranes to hinder such detaching effect. Results show that the incorporation of CNTs not only further enhance the permeation and mechanical properties but also the rejection and antifouling property. All in all, in this thesis, we choose three different types of materials and incorporate them into polymeric membranes to enhance the water treatment performance (flux, rejection, antifouling and mechanical properties), offering some useful and practical designing knowledge or methods to the synthesis of high-performance polymer-based membranes for water treatment processes.
Download or read book Preparation of Reverse osmosis Membranes by Surface Modification of Polymeric Films written by A. M. Stake and published by . This book was released on 1972 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science and Technology of Separation Membranes written by Tadashi Uragami and published by John Wiley & Sons. This book was released on 2017-03-14 with total page 1360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a comprehensive overview of membrane science and technology from a single source Written by a renowned author with more than 40 years’ experience in membrane science and technology, and polymer science Covers all major current applications of membrane technology in two definitive volumes Includes academic analyses, applications and practical problems for each existing membrane technology Includes novel applications such as membrane reactors, hybrid systems and optical resolution as well as membrane fuel cells
Download or read book Polymer Membranes written by Mahmoud Atef Abdulhamid and published by Walter de Gruyter GmbH & Co KG. This book was released on 2024-05-20 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the comprehensive landscape of polymer membrane applications in this book, encompassing gas separation, organic solvent nanofiltration, water desalination, and fuel cells. The text delves into the subtle influence of polymer membranes on energy efficiency across diverse industries, spotlighting advanced variants such as bio-based, mixed matrix, and polyimides-based membranes. Offering an in-depth analysis, the book elucidates the discovery, development, and challenges associated with these state-of-the-art materials, underscoring their role in achieving enhanced performance and energy efficiency.
Download or read book Membrane Processes in Biotechnology and Pharmaceutics written by Catherine Charcosset and published by Elsevier. This book was released on 2012-03-14 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 1: Principles on membrane and membrane processes -- Chapter 2: Ultrafiltration -- Chapter 3: Microfiltration -- Chapter 4: Virus Filtration -- Chapter 5: Membrane chromatography -- Chapter 6: Membranes for the Preparation of Emulsions and Particles -- Chapter 7: Other Membrane Processes -- Chapter 8: Some Perspectives.
Download or read book High Performance Water Filtration Membranes Using Surface Modification and New Materials written by Xinwei Huang and published by . This book was released on 2016 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water scarcity is one of the most critical challenges faced by mankind and it is only getting worse due to source pollution and rising population. There is critical need for the development of water filtration membranes in order to treat polluted water and turn water from non-potable sources such as waste waster and ocean water into freshwater for human consumption and agricultural irrigation. Filtration Membranes are generally classified into four categories: microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO), with decreasing pore size for rejecting different sized substances. Commercial filtration membranes are able to provide decent flux and rejection for their targeted applications. However, most of them suffer from fouling issues when the microorganisms and organic matter such as proteins and polysaccharides in the water source deposit onto the membrane surface, impeding the permeation of water and lowering the flux. Therefore, it is of high demand to develop membranes that are anti-fouling. Foulants such as protein particles adhere to the membrane surface via hydrophobic interactions. In order to minimize such effects, a typical way is to increase the hydrophilicity of the membrane by surface modification or by utilizing hydrophilic membrane materials. Foulants also tend to get trapped in the open "pores" on a rough membrane surface with ridges and valleys. It is then expected that a smoother membrane surface tend to lessen such effects. Incorporating antimicrobial properties into the membrane is also an effective way to reduce fouling as this inhibits the growth of microorganisms on the membrane surfaces. New materials are also used to fabricate membranes with improved performance. Conducting polymers have recently been discovered as a new category of membrane-making materials that are hydrophilic and low-fouling. A new type of polyaniline derivative has been used to fabricate UF membranes that demonstrate chlorine resistance and anti-fouling properties. Nanostructured polyanilines are highly processable and possess unique properties that can be used in the membrane field as well as many other applications such as sensors, electrochromic devices, supercapacitors and antistatic coatings with enhanced performance, as described in a review section at the end of this thesis.
