Download or read book Synthesis and Characterization of Highly Crystalline Anatase Titania written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Samarium (Sm) doped titania samples were prepared through sol- el process by using titanium oxosulphate as precursor for titanium and samarium oxide as a precursor for Sm3+ ions. The main objective of the proposed study is to stabilize the anatase phase of titania up to high temperatures. Thermal analysis showed a weight loss of 21 % on heating up to 1000C in an inert atmosphere. IR analysis showed the complete removal of the surfactant on calcination at 500C for 2 h. The obtained samples were characterized by X-ray diffraction XRD, SEM, UV, TG-DTA & FTIR studies. It was found that the anatase phase of titania was stable up to 850C. The catalyst showed visible light absorption as evident from the UV-VIS spectrum and was found to be an active photo catalyst in sunlight.
Download or read book TiO2 Nanoparticles written by Aiguo Wu and published by John Wiley & Sons. This book was released on 2020-06-02 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique book that summarizes the properties, toxicology, and biomedical applications of TiO2-based nanoparticles Nanotechnology is becoming increasingly important for products used in our daily lives. Nanometer-sized titanium dioxide (TiO2) are widely used in industry for different purposes, such as painting, sunscreen, printing, cosmetics, biomedicine, and so on. This book summarizes the advances of TiO2 based nanobiotechnology and nanomedicine, covering materials properties, toxicological research, and biomedical application, such as antibacter, biosensing, and cancer theranostics. It uniquely integrates the TiO2 applications from physical properties, toxicology to various biomedical applications, and includes black TiO2 based cancer theranostics. Beginning with a comprehensive introduction to the properties and applications of nanoparticles, TiO2 Nanoparticles: Applications in Nanobiotechnology, Theranostics and Nanomedicine offers chapters on: Toxicity of TiO2 Nanoparticles; Antibacterial Applications of TiO2 Nanoparticles; Surface Enhanced Raman Spectrum of TiO2 Nanoparticle for Biosensing (TiO2 Nanoparticle Served as SERS Sensing Substrate); TiO2 as Inorganic Photosensitizer for Photodynamic Therapy; Cancer Theranostics of Black TiO2 Nanoparticles; and Neurodegenerative Disease Diagnostics and Therapy of TiO2-Based Nanoparticles. This title: -Blends the physical properties, toxicology of TiO2 nanoparticles to the many biomedical applications -Includes black TiO2 based cancer theranostics in its coverage -Appeals to a broad audience of researchers in academia and industry working on nanomaterials-based biosensing, drug delivery, nanomedicine TiO2 Nanoparticles: Applications in Nanobiotechnology, Theranostics and Nanomedicine is an ideal book for medicinal chemists, analytical chemists, biochemists, materials scientists, toxicologists, and those in the pharmaceutical industry.
Download or read book Development of Highly Porous Crystalline Titania Photocatalysts written by Michał Marszewski and published by . This book was released on 2016 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this dissertation are the design, synthesis, and characterization of titania materials with surface area, porosity, crystallinity and doping tailored toward photocatalytic applications. Ultimately, the research should result in a strategy allowing the synthesis of titania with all these important features. The synthetic methods investigated in this research will include: i) soft-templating, ii) hard-templating, and iii) modified precursor strategy. Soft-templating strategy uses organic templates--either block copolymers or surfactants--that under specific conditions assemble into micelles, and later, these micelles are used to template the desired material around them. The resulting organic-inorganic composite is then calcined in air to remove the organic template and recover the final material with high surface area and large pore volume. This work explores 1) synthesis of titania materials in the presence of polymer templates, and the effects of different synthetic conditions on the structure of the resulting materials. Hard-templating, in contrast to soft-templating, uses inorganic templates. The hard template is introduced during the synthesis to cast its shape onto the fabricated material and removed afterwards, when the material has formed. The final material is an inverse replica of the hard template used, typically with a well-developed mesostructure. This work explores 1) hard templating synthesis of titania materials using silica and alumina, and 2) the effects of the template amount and type. The modified precursor strategy is a novel synthetic method, developed in this research, and designed specifically to achieve titania material with high surface area, large pore volume, high crystallinity, and possibly doping. The modified precursors are prepared by reacting generic titania precursors, such as titanium isopropoxide (TIPO), with organic acids, which results in substitution of some or all alkoxide groups in TIPO structure. The goal is to introduce new, easily carbonizable groups in TIPO structure so that the modified precursor can serve as titania and carbon precursor simultaneously. Subsequently, during carbonization in inert atmosphere, a carbon framework is formed that works as a scaffold, protecting titania during its crystallization. Afterwards, the carbon scaffold is removed by calcination in air. This work explores the modified precursor strategy by 1) preparing titania materials from TIPO modified with different carboxylic acids and 2) investigating the effect of the modifying acid on the properties of the carbon-titania composites and the final titania materials.
Download or read book Emerging Trends in TiO2 Photocatalysis and Applications written by Trong-On Do and published by MDPI. This book was released on 2020-12-28 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: The semiconductor titanium dioxide (TiO2) has been evolved as a prototypical material to understand the photocatalytic process, and has been demonstrated for various photocatalytic applications such as pollutants degradation, water splitting, heavy metal reduction, CO2 conversion, N2 fixation, bacterial disinfection, etc. Rigorous photocatalytic studies on TiO2 have paved the way to understanding the various chemical processes involved and the physical parameters (optical and electrical) required to design and construct diverse photocatalytic systems. Accordingly, it has been realized that an effective photocatalyst should have ideal band edge potential, narrow band gap energy, reduced charge recombination, enhanced charge separation, improved interfacial charge transfer, surface-rich catalytic sites, etc. As a result, many strategies have been developed to design a variety of photocatalytic systems, which include doping, composite formation, sensitization, co-catalyst loading, etc. Towards highlighting the above-mentioned diversities in TiO2 photocatalysis, there have been many interesting original research works on TiO2, involving material designs for various photocatalytic applications published in this Special Issue. In addition, some excellent review papers have also been published in this Special Issue, focusing on the various TiO2-based photocatalytic systems and their mechanisms and applications.
Download or read book Handbook of Less Common Nanostructures written by Boris I. Kharisov and published by CRC Press. This book was released on 2012-03-19 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: As nanotechnology has developed over the last two decades, some nanostructures, such as nanotubes, nanowires, and nanoparticles, have become very popular. However, recent research has led to the discovery of other, less-common nanoforms, which often serve as building blocks for more complex structures. In an effort to organize the field, the Handbook of Less-Common Nanostructures presents an informal classification based mainly on the less-common nanostructures. A small nanotechnological encyclopedia, this book: Describes a range of little-known nanostructures Offers a unifying vision of the synthesis of nanostructures and the generalization of rare nanoforms Includes a CD-ROM with color versions of more than 100 nanostructures Explores the fabrication of rare nanostructures, including modern physical, chemical, and biological synthesis techniques The Handbook of Less-Common Nanostructures discusses a classification system not directly related to the dimensionality and chemical composition of nanostructure-forming compounds or composite. Instead, it is based mainly on the less-common nanostructures. Possessing unusual shapes and high surface areas, these structures are potentially very useful for catalytic, medical, electronic, and many other applications.
Download or read book Biopolymer Grafting Synthesis and Properties written by Vijay Kumar Thakur and published by Elsevier. This book was released on 2017-09-27 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biopolymer Grafting: Synthesis and Properties presents the latest research and developments in fundamental of synthesis and properties of biopolymer-based graft copolymers. The book presents a broad overview of the biopolymer grafting process, along with trends in the field. It also introduces a range of grafting methods which lead to materials with enhanced properties for a range of practical applications, along with the positives and limitations of these techniques. The book bridges the knowledge gap between the scientific principles and industrial applications of polymer grafting. This book covers synthesis and characterization of graft-copolymers of plant polysaccharides, functional separation membranes from grafted biopolymers, and polysaccharides in alternative methods for insulin delivery. Recent trends and advances in this area are discussed, assisting materials scientists and researchers in mapping out the future of these new "green" materials through value addition to enhance their use. Introduces polymer researchers to a promising, rapidly developing method for modifying naturally derived biopolymers Provides a one-stop shop covering synthesis, properties, characterization and graft copolymerization of bio-based polymeric materials Increases familiarity with a range of biopolymer grafting processes, enabling materials scientists and engineers to improve material properties and widen the range of potential biopolymer applications
Download or read book Application of Titanium Dioxide written by Magdalena Janus and published by BoD – Books on Demand. This book was released on 2017-07-26 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium dioxide is mainly used as a pigment and photocatalyst. It is possible to find it in food, cosmetics, building materials, electric devices, and others. This book contains chapters about application of titanium dioxide in different branches of economy such as the agriculture, the food industry, the medicine, the cosmetics, the water treatment technologies, and the semiconductors.
Download or read book Materials Science in Photocatalysis written by Elisa I. Garcia Lopez and published by Elsevier. This book was released on 2021-08-15 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Science in Photocatalysis provides a complete overview of the different semiconductor materials, from titania to third-generation photocatalysts, examining the increasing complexity and novelty of the materials science in photocatalytic materials. The book describes the most recommended synthesis procedure for each of them and the suitable characterization techniques for determining the optical, structural, morphological, and physical-chemical properties. The most suitable applications of the photocatalysts are described in detail, as well as their environmental applications for wastewater treatment, gaseous effluents depollution, water splitting, CO2 ?xation, selective organic synthesis, coupling reactions, and other selective transformations under both UV light and visible-light irradiation. This book offers a useful reference for a wide audience from students studying chemical engineering and materials chemistry to experienced researchers working on chemical engineering, materials science, materials engineering, environment engineering, nanotechnology, and green chemistry. Includes a complete overview of the different semiconductor materials used as photocatalysts Describes methods of preparation and characterization of photocatalysts and their applications Examines new possibilities to prepare effective photocatalysts
Download or read book Advanced Engineering and Technology II written by Liquan Xie and published by CRC Press. This book was released on 2015-03-19 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Engineering and Technology II collects recent essential ideas and advanced techniques to overcome the current engineering issues in civil engineering, environmental engineering, water science and hydraulic engineering, energy and chemical engineering, and other related fields. The 60 technical papers from the 2nd Annual Congress on Advance
Download or read book Bulletin of the Korean Chemical Society written by and published by . This book was released on 2008 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photocatalytic Semiconductors written by Aracely Hernández-Ramírez and published by Springer. This book was released on 2014-11-17 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This critical volume examines the different methods used for the synthesis of a great number of photocatalysts, including TiO2, ZnO and other modified semiconductors, as well as characterization techniques used for determining the optical, structural and morphological properties of the semiconducting materials. Additionally, the authors discuss photoelectrochemical methods for determining the light activity of the photocatalytic semiconductors by means of measurement of properties such as band gap energy, flat band potential and kinetics of hole and electron transfer. Photocatalytic Semiconductors: Synthesis, Characterization and Environmental Applications provide an overview of the semiconductor materials from first- to third-generation photocatalysts and their applications in wastewater treatment and water disinfection. The book further presents economic and toxicological aspects in the production and application of photocatalytic materials.
Download or read book Industrial Chemistry of Oxides for Emerging Applications written by Lech Pawlowski and published by John Wiley & Sons. This book was released on 2018-04-30 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Valuable insights into the extraction, production, and properties of a large number of natural and synthetic oxides utilized in applications worldwide from ceramics, electronic components, and coatings This handbook describes each of the major oxides chronologically—starting from the processes of extraction of ores containing oxides, their purification and transformations into pure alloyed powders, and their appropriate characterization up to the processes of formation of 2D films by such methods as PVD, CVD, and coatings by thermal spraying or complicated 3D objects by sintering and rapid prototyping. The selection of oxides has been guided by the current context of industrial applications. An important point that is considered in the book concerns the strategic aspects of oxides. Some oxides (e.g. rare earth ones) become more expensive due to the growing demand for them, others, because of the strategic importance of countries producing raw materials and the countries that are using them. Industrial Chemistry of Oxides for Emerging Applications provides readers with everything they need to know in 7 chapters that cover: technical and economical importance of oxides in present and future; fundamentals of oxides manufacturing; extraction, properties, and applications of Al2O3; extraction, properties, and applications of ZrO2; synthesis, properties, and applications of YBaCu2O7x; extraction, properties, and applications of TiO2; and synthesis, properties, and application of hydroxyapatite. Presents the extraction, production, and properties of a large fraction of oxides applications worldwide, both natural as well as synthetic multi‐oxides Covers a very important segment of many industrial processes, such as refractories and piezoelectric oxides—both applications constituting very large market segments Developed from a lecture course given by the authors for over a decade Industrial Chemistry of Oxides for Emerging Applications is an excellent text for university professors and teachers, and graduate and postgraduate students with a solid background in physics and chemistry.
Download or read book Nanostructured Photocatalysts written by Hiromi Yamashita and published by Springer. This book was released on 2016-05-03 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: While books on semiconductor TiO2 photocatalysis are legion, nanostructured controlled photocatalysts are attractive beyond standard semiconductors, and this book is devoted to the many novel uses of advanced TiO2 and MOF-based photocatalysts. Details on synthesis, characterization, and reaction applications of nanostructured photocatalysts are summarized. Other new materials discussed in this book are Bi- W- oxides, metal complexes, and unique porous materials. This book contains methods of preparation and characterization of unique nanostructured photocatalysts, and details about their catalytic action. Contributors to this volume are leading Asian researchers in Photocatalysis. It will appeal to researchers wishing to know how to design new types of photocatalysts with controlled nanostructures.
Download or read book Photocatalysis written by Pierre Pichat and published by MDPI. This book was released on 2018-10-01 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Photocatalysis" that was published in Molecules
Download or read book Titanium Dioxide written by Dongfang Yang and published by BoD – Books on Demand. This book was released on 2018-06-27 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium dioxide is currently being used in many industrial products. It provides unique photocatalytic properties for water splitting and purification, bacterial inactivation, and organics degradation. It has also been widely used as the photoanode for dye-sensitized solar cells and coatings for self-cleaning surfaces, biomedical implants, and nanomedicine. This book covers various aspects of titanium dioxide nanomaterials including their unique one-dimensional, two-dimensional, mesoporous, and hierarchical nanostructures and their synthetic methods such as sol-gel, hydrothermal, anodic oxidation, and electrophoretic deposition, as well as its key applications in environmental and energy sectors. Through these 24 chapters written by experts from the international scientific community, readers will have access to a comprehensive overview of the recent research and development findings on the titanium dioxide nanomaterials.
Download or read book Crystallization and Growth of Colloidal Nanocrystals written by Edson Roberto Leite and published by Springer Science & Business Media. This book was released on 2011-11-17 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the size, shape, and microstructure of nanocrystalline materials strongly impact physical and chemical properties, the development of new synthetic routes to nanocrystals with controlled composition and morphology is a key objective of the nanomaterials community. This objective is dependent on control of the nucleation and growth mechanisms that occur during the synthetic process, which in turn requires a fundamental understanding of both classical nucleation and growth and non-classical growth processes in nanostructured materials. Recently, a novel growth process called Oriented Attachment (OA) was identified which appears to be a fundamental mechanism during the development of nanoscale materials. OA is a special case of aggregation that provides an important route by which nanocrystals grow, defects are formed, and unique—often symmetry-defying—crystal morphologies can be produced. This growth mechanism involves reversible self-assembly of primary nanocrystals followed by reorientation of the assembled nanoparticles to achieve structural accord at the particle-particle interface, the removal of adsorbates and solvent molecules, and, finally, the irreversible formation of chemical bonds to produce new single crystals, twins, and intergrowths. Crystallization and Growth of Colloidal Nanocrystals provides a current understanding of the mechanisms related to nucleation and growth for use in controlling nanocrystal morphology and physical-chemical properties, and is essential reading for any chemist or materials scientist with an interest in using nanocrystals as building blocks for larger structures. This book provides a compendium for the expert reader as well as an excellent introduction for advanced undergraduate and graduate students seeking a gateway into this dynamic area of research.
Download or read book Progress in Nanotechnology written by ACerS (American Ceramics Society, The) and published by John Wiley & Sons. This book was released on 2010-02-02 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition of the Progress in Ceramic Technology series is a select compilation of articles on nanotechnology applications and markets previously published in ACerS publications, including The American Ceramic Society Bulletin, Journal of the American Ceramic Society, International Journal of Applied Ceramic Technology, Ceramic Engineering and Science Proceedings (CESP) and Ceramic Transactions (CT). The American Ceramic Society contributes to the progress of nanotechnology by providing forums for information exchange during its various meetings and by publishing articles in its various journals and proceedings.
