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Adsorption And Structural Studies On Activated Carbons
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Book Synopsis Characterization of Porous Solids VI by :
Download or read book Characterization of Porous Solids VI written by and published by Elsevier. This book was released on 2002-11-14 with total page 809 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 99 of the papers that were presented at the 6th in the series of Symposia on Characterization of Porous Solids held in Alicante, Spain, May 2002. Written by leading international specialists in the subject, the contributions represent an up-to-date and authoritative account of recent developments around the world in the major methods used to characterize porous solids. The book is a useful work of reference for anyone interested in characterizing porous solids, such as MCM-41 mesoporous materials, pillared clays, etc. Papers on pore structure determination using gas adsorption feature strongly, together with papers on small angle scattering methods, mercury porosimetry, microcalorimetry, scanning probe microscopies, and image analysis.
Book Synopsis Adsorption and Structural Studies on Activated Carbons by :
Download or read book Adsorption and Structural Studies on Activated Carbons written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The porous structure of activated carbons is examined from the point of view of gas adsorption, and in relation to classical methods such as X-ray diffraction and electron microscopy. It is suggested that the different approaches to the problem of microporosity should provide complementary information, which can be useful for a better understanding of static and dynamic adsorption processes in activated carbons.
Book Synopsis Activated Carbon Adsorption by : Roop Chand Bansal
Download or read book Activated Carbon Adsorption written by Roop Chand Bansal and published by CRC Press. This book was released on 2005-05-24 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: High surface area, a microporous structure, and a high degree of surface reactivity make activated carbons versatile adsorbents, particularly effective in the adsorption of organic and inorganic pollutants from aqueous solutions. Activated Carbon Adsorption introduces the parameters and mechanisms involved in the activated carbon adsorption
Download or read book Activated Carbon written by Harry Marsh and published by Elsevier. This book was released on 2006-07-12 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen an expansion in speciality uses of activated carbons including medicine, filtration, and the purification of liquids and gaseous media. Much of current research and information surrounding the nature and use of activated carbon is scattered throughout various literature, which has created the need for an up-to-date comprehensive and integrated review reference. In this book, special attention is paid to porosities in all forms of carbon, and to the modern-day materials which use activated carbons - including fibres, clothes, felts and monoliths. In addition, the use of activated carbon in its granular and powder forms to facilitate usage in liquid and gaseous media is explored. Activated Carbon will make essential reading for Material Scientists, Chemists and Engineers in academia and industry. - Characterization of porosity - The surface chemistry of the carbons - Methods of activation and mechanisms of adsorptio - Computer modelling of structure and porosity within carbons - Modern instrumental analytical methods
Book Synopsis Activated Carbon: Surface Chemistry and Adsorption from Solution by : James S. Mattson
Download or read book Activated Carbon: Surface Chemistry and Adsorption from Solution written by James S. Mattson and published by . This book was released on 1971 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Adsorption by : M Suzuki
Download or read book Fundamentals of Adsorption written by M Suzuki and published by Elsevier. This book was released on 1993-12-23 with total page 819 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Adsorption contains 2 plenary lectures and 96 selected papers from the IVth International Conference, Kyoto, May, 1992. The topics cover a wide range of studies from fundamentals to applications: characterization of porous adsorbents, molecular simulation, adsorption isotherms, diffusion in adsorbents, breakthrough detection, chromatography, pressure swing operation, etc. Model studies on adsorption, surface characterization, microporosimetry, molecular simulations of equilibrium and diffusion, computer simulation of adsorption beds, and many theoretical studies are also included. Special attention is given to: bulk gas separation and purification, solvent recovery, bioproduct separation, environmental pollution control, methane storage, adsorption cooling and resources recovery.
Book Synopsis Hydrogen Adsorption Studies of Engineered and Chemically Modified Activated Carbons by : Matt Beckner
Download or read book Hydrogen Adsorption Studies of Engineered and Chemically Modified Activated Carbons written by Matt Beckner and published by . This book was released on 2012 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: My research focuses on the production of boron-doped activated carbons and the evaluation of their adsorption and structural characteristics. Boron-doped activated carbons have been produced using a process involving the pyrolysis of decaborane (B10H14) and subsequent high-temperature annealing. Presented here is a systematic study of the undoped activated carbon precursor on the effect of activation temperature and KOH:C on pore structure. A second study of the effect of different boron-doping processes on the samples' structure, hydrogen sorption, and surface chemistry is presented. Room temperature hydrogen adsorption experiments show a 20% increase in the hydrogen excess adsorption per surface area compared to the undoped material. Experimentally determined adsorption enthalpies showed that the boron-doped activated carbon had an enthalpy of ~9-10 kJ/mol compared to 6 kJ/mol for the undoped precursor.
Book Synopsis Activated Carbon Surfaces in Environmental Remediation by : Teresa J. Bandosz
Download or read book Activated Carbon Surfaces in Environmental Remediation written by Teresa J. Bandosz and published by Elsevier. This book was released on 2006-02-27 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated Carbon Surfaces in Environmental Remediation provides a comprehensive summary of the environmental applications of activated carbons. In order to understand the removal of contaminants and pollutants on activated carbons, the theoretical bases of adsorption phenomena are discussed. The effects of pore structure and surface chemistry are also addressed from both science and engineering perspectives. Each chapter provides examples of real applications with an emphasis on the role of the carbon surface in adsorption or reactive adsorption. The practical aspects addressed in this book cover the broad spectrum of applications from air and water cleaning and energy storage to warfare gas removal and biomedical applications. This book can serve as a handbook or reference book for graduate students, researchers and practitioners with an interest in filtration, water treatment, adsorbents and air cleaning, in addition to environmental policies and regulations. Addresses fundamental carbon science and how it relates to applications of carbon surfaces Describes the broad spectrum of activated carbon applications in environmental remediation Serves as a handbook or reference book for graduate students, researchers and practitioners in the field
Book Synopsis Effects of Activated Carbon Characteristics on Organic Contaminant Removal by : Detlef R. U. Knappe
Download or read book Effects of Activated Carbon Characteristics on Organic Contaminant Removal written by Detlef R. U. Knappe and published by IWA Publishing. This book was released on 2004-01-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many water treatment plants need to remove objectionable trace organic compounds, and activated carbon adsorption is often the best available technology. Utilities face the challenge of having to choose from a large variety of activated carbons, and iodine number or BET surface area values are often utilized in the selection process. Although neither parameter correlates well with adsorption capacities, alternative activated carbon selection criteria based on fundamental adsorbent and adsorbate properties are lacking to date. The first objective of this research was to systematically evaluate the effects of activated carbon pore structure and surface chemistry on the adsorption of two common drinking water contaminants: the relatively polar fuel oxygenate methyl tertiary-butyl ether (MTBE) and the relatively nonpolar solvent trichloroethene (TCE). The second objective was to develop simple descriptors of activated carbon characteristics that facilitate the selection of suitable adsorbents for the removal of organic contaminants from drinking water.Originally published by AwwaRF for its subscribers in 2003 This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below
Book Synopsis Carbon Adsorption Isotherms for Toxic Organics by : Richard A. Dobbs
Download or read book Carbon Adsorption Isotherms for Toxic Organics written by Richard A. Dobbs and published by . This book was released on 1978 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Surface Groups on Adsorption of Pollutants by : Robert W. Coughlin
Download or read book Effect of Surface Groups on Adsorption of Pollutants written by Robert W. Coughlin and published by . This book was released on 1970 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Novel Carbon Adsorbents by : Juan M.D. Tascón
Download or read book Novel Carbon Adsorbents written by Juan M.D. Tascón and published by Elsevier. This book was released on 2012-11-23 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following in the lineage of Adsorption by Carbons (Bottani & Tascon, 2008), this work explores current research within contemporary novel carbon adsorbents. Both basic and applied aspects are discussed for this important class of materials. The first section of the book introduces physical adsorption and carbonaceous materials, and is followed by a section concerning the fundamentals of adsorption by carbons. This leads to development of a series of theoretical concepts that serve as an introduction to the following section in which adsorption is mainly envisaged as a tool to characterize the porous texture and surface chemistry of carbons. Particular attention is paid to novel nanocarbons, and the electrochemistry of adsorption by carbons is also addressed. Finally, several important technological applications of gas and liquid adsorption by carbons in areas such as environmental protection and energy storage constitute the last section of the book. - Encompasses fundamental science of adsorption by carbons, in one location, supporting current R&D without extensive literature review - Describes adsorption as it is currently applied to major novel types of carbon materials, including carbon gels, carbide-derived carbons, zeolite-templated carbvons, hydrothermal carbons, carbon nanohorns and graphene - Specific discussion of fuel storage, environmental remediation and biomedical applications, of contemporary interest to many surface chemists and applications-focused researchers
Book Synopsis Effects of Activated Carbon Surface Chemistry and Pore Structure on the Adsorption of Trace Organic Contaminants from Aqueous Solution by :
Download or read book Effects of Activated Carbon Surface Chemistry and Pore Structure on the Adsorption of Trace Organic Contaminants from Aqueous Solution written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal objectives of this research were (1) to identify activated pore structure and surface chemistry characteristics that assure the effective removal of trace organic contaminants from aqueous solution, and (2) to develop a procedure to predict the adsorption capacity of activated carbons from fundamental adsorbent and adsorbate properties. To systematically evaluate pore structure and surface chemistry effects on the adsorption of organic micropollutants from aqueous solution, a matrix of activated carbon fibers (ACFs) with three activation levels and four surface chemistry levels was prepared and characterized. In addition, three commercially available granular activated carbons (GACs) were studied to verify whether correlations developed for the ACF matrix are valid for adsorbents that are typically used for water treatment. BET surface area, pore size distribution, elemental composition, point of zero charge and infrared spectroscopy data were obtained to characterize the adsorbents. The results showed that the ACF matrix prepared in this study permits a fairly independent evaluation of surface chemistry and pore structure effects on organic contaminant adsorption from aqueous solution. Methyl tertiary-butyl ether (MTBE), a relatively hydrophilic adsorbate, and trichloroethene (TCE), a relatively hydrophobic adsorbate, served as adsorbate probes. To evaluate the effects of natural organic matter (NOM) on MTBE and TCE adsorption capacities, isotherm experiments were conducted in ultrapure water and Sacramento-San Joaquin Delta water. With respect to surface chemistry, both single-solute isotherms and isotherms in the presence of NOM indicated that hydrophobic adsorbents more effectively removed TCE and MTBE from aqueous solution than hydrophilic adsorbents. Enhanced water adsorption on polar surface sites explained the poorer performance of the hydrophilic adsorbents. Based on the elemental composition of the low-ash carbons evaluated in this study, act.
Download or read book Active Carbon written by Helena Jankowska and published by Ellis Horwood. This book was released on 1991 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is concerned with the production of active carbons, describing their properties based on the characteristic features of the porous and chemical structures of the surface. It provides the data needed for calculating the porous structure of active carbons using modern methods.
Book Synopsis Activated Carbon by : Chandrabhan Verma
Download or read book Activated Carbon written by Chandrabhan Verma and published by Royal Society of Chemistry. This book was released on 2023-05-10 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated carbon has long been used for filtering contaminants, thanks to its large surface area for adsorption. This, and other properties has led to a growing interest in activated carbon and a broader range of applications. This book explores the various forms of activated carbon, detailing how they can be prepared and characterised. The editors bring together a global team of authors from industry and academia. Their contributions include environmental and medical applications, as well as various industries. Future directions are also considered. The editors are at the Interdisciplinary Center for Research in Advanced Materials, King Fahd University of Petroleum and Minerals, Saudi Arabia. They present an up-to-date and comprehensive reference aimed at all career levels in chemistry and materials science, engineering and research across the diverse industries finding a use for activated carbon.
Book Synopsis New Carbons - Control of Structure and Functions by : Michio Inagaki
Download or read book New Carbons - Control of Structure and Functions written by Michio Inagaki and published by Elsevier. This book was released on 2000-04-20 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of fullerenes and nanotubes has greatly stimulated the interest of scientists and engineers in carbon materials, and has resulted in much scientific research. These materials have provided us with many interesting ideas and potential applications, some of them practical and some simply dreams for the future. In the early 1960s, carbon fibers, glass-like carbons and pyrolytic carbons were developed which were quite different from the carbon materials that had previously been used. Carbon fibers exhibited surprisingly good mechanical properties, glass-like carbons exhibited brittle fracture resulting in a conchoidal fracture surface similar to sodium glass, and giving no carbon dust, and pyrolytic carbons were produced by a new production process of chemical vapour deposition and showed very high anisotropy. These carbons materials made a great impact not only on the carbon community who had been working on carbon materials but also on people working in the fields of materials science and engineering. They were used to develop a variety of new applications in technological fields, such as semiconductors, microelectronics, aerospace and high temperature, etc. These newly developed carbon materials were called NEW CARBONS, in comparison with carbon materials such as artificial graphites represented by graphite electrodes, carbon blacks and activated carbons, which maybe thought of as CLASSICAL CARBONS. Later, other new carbons, such as activated carbons and those with novel functions, isotropic high-density graphites, intercalation compounds, various composites, etc., were developed. In 1994, Professor Michio Inagaki published a book entitled "New Carbon Materials — Structure and Functions" with his friend Professor Yoshihiro Hishiyama of Musashi Institute of Technology, published by Gihoudou Shuppan in Japanese. However, progress in the fields of these new carbons is so rapid that the previous book is already out of date. For this reason the author has decided to write an English text on New Carbons. The text focuses on New Carbons based on hexagonal networks of carbon-atoms, i.e. graphite-related materials. The fundamental concept underlying this book is that the structure and functions of these materials are principally governed by their texture. The aim is to give readers a comprehensive understanding of New Carbons through the description of their structure and texture, along with the properties that are largely dependent on them.
Book Synopsis Effects of Activated Carbon Surface Chemistry and Pore Structure on the Absorption of Methyl Tertiary-Butyl Ether and Trichloroethene from Natural Water by :
Download or read book Effects of Activated Carbon Surface Chemistry and Pore Structure on the Absorption of Methyl Tertiary-Butyl Ether and Trichloroethene from Natural Water written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated carbon adsorption is the best available treatment technology for thecontrol of many objectionable trace organic compounds. Activated carbons are frequentlycharacterized by the iodine number and BET surface area, but these parameters do notcorrelate well with trace organic compound removal from natural water. Therefore, theobjective of this research was to develop activated carbon selection criteria that assure theeffective removal of trace organic contaminants from natural water and to base theselection criteria on the adsorbent's pore structure and surface chemistry. Tosystematically evaluate pore structure and surface chemistry effects, a matrix of activatedcarbon fibers (ACFs) with three activation levels and four surface chemistry levels wasstudied. To evaluate whether adsorption trends established for ACFs were also valid forgranular activated carbon (GAC), ACF results were compared with those obtained forthree commercially available GACs. Adsorption capacities were determined for naturalorganic matter (NOM), for relatively hydrophilic methyl tertiary-butyl ether (MTBE) andrelatively hydrophobic trichloroethene (TCE) in organic-free water, and for MTBE andTCE in the presence of NOM. NOM isotherms showed that DOC adsorption occurredprimarily in pores with diameters in the 11 to 500 Å range and that electrostaticinteractions between NOM and the carbon surface played a role in NOM adsorption. According to both single-solute isotherms and micropollutant isotherms in the presence of NOM, hydrophobic adsorbents more effectively removed TCE and MTBE thanhydrophilic adsorbents. Effective adsorbents for drinking water treatment shouldtherefore contain little oxygen and nitrogen whose presence increases the polarity of theadsorbent surface. Based on the elemental composition of the low-ash carbons evaluatedin this study, activated carbons should have oxygen and nitrogen contents that sum to nomore than 2 to 3 mmol/g to assure sufficient hydrophobicity. In a.
