Heterogeneous Nanocomposite Photocatalysis for Water Purification

Author: Rajendra Pawar
Publisher: William Andrew
ISBN: 0323393136
Format: PDF, ePub, Docs
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In Heterogeneous Nanocomposite-Photocatalysis for Water Purification, the authors introduce various heterogeneous photocatalysts based on novel nanostructures of metal oxide semiconductors and graphene used for water purification, including TiO2, Fe2O3, SnO2, WO3 and g-C3N4, and outlines their advantages and drawbacks. The nanocomposite-photocatalysts ZnO and CdS are compared with reduced graphene oxide (rGO), a rapidly growing materials system. The authors describe how the photocatalytic activity of known nanomaterials can be improved by modifying the structural and optical properties (i.e., phase composition). Introductory portion of the book includes a brief survey of all different kinds of heterogeneous photocatalysts Discusses the possible photocatalysis mechanism occurring during the degradation of different toxic pollutants Provides the photoelectrochemical measurement for synthesized catalysts, supporting the effective transportation of photoelectrons resulting into better catalytic properties

Current Trends and Future Developments on Bio Membranes

Author: Angelo Basile
Publisher: Elsevier
ISBN: 0128135506
Format: PDF, Docs
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Current Trends and Future Developments on (Bio-) Membranes: Photocatalytic Membranes and Photocatalytic Membrane Reactors offers a comprehensive review on the state-of-the-art in the area of PMs and PMRs. The book gives an overview of the basis of photocatalysis and membrane separation and the basic aspects of photocatalytic membranes and photocatalytic membrane reactors, along with their applications, modeling, and the economic aspects of PMs and PMRs. The book addresses the main issues associated with PMRs design and tries to predict how long it will be before laboratory scale models can be scaled to the PMR industry. Reviews new hybrid separation techniques based on photocatalysis and membranes Offers a detailed description of the various photocatalytic membrane reactors and their function Includes new membrane based separation techniques for the removal of emerging contaminants from water, such as pharmaceutical and personal care products Discusses numerous reactor configurations and various membrane materials for photocatalytic membranes Includes the modeling and economic aspects of various processes

Metal Oxide Based Photocatalysis

Author: Adriana Zaleska-Medynska
Publisher: Elsevier
ISBN: 0128116331
Format: PDF, ePub, Mobi
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Metal Oxide-Based Photocatalysis: Fundamentals and Prospects for Application explains the principles and fundamentals of metal oxide-based photocatalysis and the requirements necessary for their use in photocatalysis. It also discusses preparation methods for photocatalysis, and the advantages, disadvantages and achievements of the most important metal oxides (TiO2, ZnO, Fe2O3, Ta2O3, CuO, NiO, Cr2O3, RuO2, etc.). The book concludes with the most important photocatalytic applications and an overview of the future. Applications are organized by potential needs and solutions, addressing such areas as water treatment, hydrogen production, air treatment, chemical synthesis, and applications in medicine and construction. Provides coverage of applications, presenting needs and solutions Covers essential applications, such as water treatment, hydrogen production, air depollution, medical applications, and much more Includes the characterization of the most important metal oxides used in heterogeneous photocatalysis

ZnO and TiO2 Based Nanostructures

Author: Andrea Lamberti
Publisher: MDPI
ISBN: 3038970131
Format: PDF, Kindle
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This book is a printed edition of the Special Issue "ZnO and TiO2 Based Nanostructures" that was published in Nanomaterials

Heterogeneous Photocatalysis

Author: Juan Carlos Colmenares
Publisher: Springer
ISBN: 3662487195
Format: PDF, ePub, Docs
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The book explains the principles and fundamentals of photocatalysis and highlights the current developments and future potential of the green-chemistry-oriented applications of various inorganic, organic, and hybrid photocatalysts. The book consists of eleven chapters, including the principles and fundamentals of heterogeneous photocatalysis; the mechanisms and dynamics of surface photocatalysis; research on TiO2-based composites with unique nanostructures; the latest developments and advances in exploiting photocatalyst alternatives to TiO2; and photocatalytic materials for applications other than the traditional degradation of pollutants, such as carbon dioxide reduction, water oxidation, a complete spectrum of selective organic transformations and water splitting by photocatalytic reduction. In addition, heterogeneized polyoxometalate materials for photocatalytic purposes and the proper design of photocatalytic reactors and modeling of light are also discussed. This book appeals to a wide readership of the academic and industrial researchers and it can also be used in the classroom for undergraduate and graduate students focusing on heterogeneous photocatalysis, sustainable chemistry, energy conversion and storage, nanotechnology, chemical engineering, environmental protection, optoelectronics, sensors, and surface and interface science. Juan Carlos Colmenares is a Professor at the Institute of Physical Chemistry, Polish Academy of Sciences, Poland. Yi-Jun Xu is a Professor at the State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, China.

Nanoscale Materials in Water Purification

Author: Sabu Thomas
Publisher: Elsevier
ISBN: 0128139277
Format: PDF, ePub, Docs
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Novel nanoscale materials are now an essential part of meeting the current and future needs for clean water, and are at the heart of the development of novel technologies to desalinate water. The unique properties of nanomaterials and their convergence with current treatment technologies present great opportunities to revolutionize water and wastewater treatment. Nanoscale Materials for Water Purification brings together sustainable solutions using novel nanomaterials to alleviate the physical effects of water scarcity. This book covers a wide range of nanomaterials, including noble metal nanoparticles, magnetic nanoparticles, dendrimers, bioactive nanoparticles, polysaccharidebased nanoparticles, nanocatalysts, and redox nanoparticles for water purification. Significant properties and characterization methods of nanomaterials such as surface morphology, mechanical properties, and adsorption capacities are also investigated Explains how the unique properties of a range of nanomaterials makes them important water purification agents Shows how the use of nanotechnology can help create cheaper, more reliable, less energy-intensive, more environmentally friendly water purification techniques Includes case studies to show how nanotechnology has successfully been integrated into water purification system design

Nanocomposites in Wastewater Treatment

Author: Ajay Kumar Mishra
Publisher: CRC Press
ISBN: 981446354X
Format: PDF, ePub, Docs
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Nanocomposites have better adsorption capacity, selectivity, and stability than nanoparticles. Therefore, they find diversified applications in many areas. Recently, various methods for heavy metal detection from water have been extensively studied. The adsorption of various pollutants such as heavy metal ions and dyes from the contaminated water with the help of nanocomposites has attracted significant attention. This book presents a comprehensive discussion on wastewater research. It covers a vast background of the recent literature. It describes the applications of nanocomposites in various areas, including environmental science. Particularly, it is highly useful to researchers involved in the environmental and water research on nanocomposites and their applications. The book covers a broad research area of chemistry, physics, materials science, polymer science and engineering, and nanotechnology to present an interdisciplinary approach and also throws light on the recent advances in the field.

Scientific Bases for the Preparation of Heterogeneous Catalysts

Author: E. Gaigneaux
Publisher: Elsevier
ISBN: 9780444536020
Format: PDF
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These meetings, held every four years, bring together researchers from academia and industry and offer a forum for discussions on the chemistry involved in the preparation of industrial heterogeneous catalysts. Contributions focus on the aspects of catalyst preparation. Reports on physico-chemical characteristics of catalysts and catalytic performances are limited to correlations with the preparation parameters. Contains a collection of the papers presented at the workshop

Pillared Clays and Related Catalysts

Author: Antonio Gil
Publisher: Springer Science & Business Media
ISBN: 9781441966704
Format: PDF, ePub, Docs
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Since the first works introducing the aluminum intercalated clay family in the early 1970s, interest in the synthesis of pillared interlayered clays has increased tremendously, especially research into the properties and applications of new synthesis methods. The need for solids that could be used as cracking catalysts with larger pores than zeolitic materials has spurred the synthesis of new porous materials from clays. Pillared Clays and Related Catalysts reviews the properties and applications of pillared clays and other layered materials used as catalysts, focusing on: the acidity of pillared clays and the effect it has on catalytic performance the use of pillared clays as supports for catalytically active phases, and the use of the resulting solids in environmentally friendly reactions the applications of the selective reduction of NOx the comparison between the reactions of pillared clays and anionic clays.

Graphene Oxide

Author: Ajay Kumar Mishra
ISBN: 9781536141689
Format: PDF, ePub
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Graphene oxide is a carbon-based material what produces a monolayer or a few layers of oxygen-functionalized graphene. The number of layers usually differentiate between graphene oxide and graphite oxide. Though a multilayer system, graphite oxide monolayer flakes and few-layer flakes can be found in a graphene oxide dispersion. Due to the presence of oxygen functionalities, graphene oxide can easily disperse in various organic solvents including water and is compatible with a different matrix that dramatically enhances electrical and mechanical properties when mixed with polymer and ceramic materials. Graphene oxide possesses a sp2 bonding network. Graphene oxide can be used as an intermediary in the production of single layer or few-layer graphene sheets. Graphene oxide can be reduced in solution and as a thin film using a variety of reducing conditions, and reduction converts the graphene oxide into a material that has a large enhancement in electrical conductivity. Graphene oxide has been used in a variety of applications not limited to materials science engineering and biotechnology. The present book describes the advances in research and applications of graphene oxide; in Chapter One, the general introduction on graphene oxide is introduced whereas in Chapter Two a broader summary of laser processing for graphene oxide/transition metal oxide nanocomposite coatings are described. Chapter Three discusses a graphene oxide template for the scaffolding transition metal/metal oxide ingredient. Chapter Four concludes the new advances in graphene oxide-metal nanocomposites for cancer theranostics. Chapter Five summarizes graphene oxide membranes as supercapacitor separators and Chapter Six contains details of graphene oxide in terms of the advances in research and applications of membranes. Chapter Seven speaks on the conductivity of graphene oxide films while Chapter Eight describes the application of graphene oxide based nanocomposites in heterogeneous photocatalysis for water purification. Chapter Nine deals with an immense uprising, detailing the functionalization and fine-tuning of 2D graphene designed for heterogeneous catalysis to make things greener. Chapter Ten summarizes graphene oxides for biomedical and therapeutic applications. Chapter Eleven describes graphene oxide as an outstanding material for advanced batteries while Chapter Twelve speaks on behalf of self-assembled graphene oxides and their different applications. Chapter Thirteen describes the versatile applications of graphene oxide in the field of nanoelectronic while Chapter Fourteen concludes this book with details about the design, fabrication, testing and delivery of graphene oxide in solar energy storage. This book will be highly beneficial to the researchers working in the area of graphene oxide, polymer/ceramic chemistry, materials science, engineering, drug delivery, medicine and environmental science. It also covers membrane and super capacitors with their advanced applications. This book also provides a platform for all researchers to carry out graphene oxide research and the advances in the area. The book also covers recent fundamentals, advancements and newer prospects about the future research in graphene oxides.