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Synthesis, characterization and applications of nanomaterials in the field of photocatalysis

2011-08-17 Technology & Engineering
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Release : 2011-08-17
Genre : Technology & Engineering
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Book Rating : 245/5 ( reviews)

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Book Synopsis Synthesis, characterization and applications of nanomaterials in the field of photocatalysis by : Shamaila Sajjad

Download or read book Synthesis, characterization and applications of nanomaterials in the field of photocatalysis written by Shamaila Sajjad. This book was released on 2011-08-17. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2011 in the subject Chemistry - Materials Chemistry, East China University of Science and Technology (-), language: English, abstract: Considerable effort has been made to design, fabricate, and manipulate nanostructured materials by innovative approaches. The precise control of nanoscale structures will pave the way not only for elucidating unique size/shape dependent physicochemical properties but also for realizing new applications in science and technology. Nanotechnology offers unprecedented opportunities for improving our daily lives and the environment in which we live. This thesis mainly describes recent progress in the design, fabrication, and modification of nanostructured semiconductor materials for environmental applications. The scope of this thesis covers TiO2, Bi2O3 and BiOCl materials, focusing particularly on TiO2-based nanostructures (e.g., pure, doped, coupled, mesoporous, hierarchically porous, and ordered mesoporous TiO2). Mesoporous titania is of particular interest since this class of materials possesses well-defined porosity and large specific surface areas. For photocatalytic degradation of organics, these desirable properties are anticipated to improve the efficiency. So in the first part of work, I have synthesized the mesoporous titania by using poly ethylene glycol as a template in dilute acetic acid aqueous solution by hydrothermal process and investigated the effect of PEG molecular weights and thermal treatment on the resultant structure and photocatalytic activity. When the molecular weights of PEG vary from 600 to 20,000, the particle sizes of mesoporous-TiO2 structure decrease from 15.1 to 13.3 nm and mean pore sizes increase from 6.9-10.6 nm. The activities of these mesoporous-TiO2 photocatalysts prepared by using PEG are evaluated and compared with Degussa P-25 using chloro-phenol as a testing compound. [...]

Environmental Applications of Nanomaterials

2021-10-05 Technology & Engineering
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Release : 2021-10-05
Genre : Technology & Engineering
Kind : eBook
Book Rating : 222/5 ( reviews)

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Book Synopsis Environmental Applications of Nanomaterials by : Annelise Kopp Alves

Download or read book Environmental Applications of Nanomaterials written by Annelise Kopp Alves. This book was released on 2021-10-05. Available in PDF, EPUB and Kindle. Book excerpt: This book contains an overview of novel synthesis, characterization, and applications of nanomaterials. Based on an extensive state-of-the-art literature survey and the results obtained by researchers during the past years, this book presents techniques and special applications of classical and modern nanomaterials focus on environmental remediation and preservation. It summarizes up-to-date synthesis and characterization of diverse materials applied to the modern environment concerns such as zero-valent iron soil remediation, photochromic materials for water treatment, carbon nanotubes for gas sensing, photocatalysis, among others. This book is aimed at students, researchers, and engineers who seek general scientific knowledge about nanomaterials with an application-oriented approach.

Green Synthesis, Characterization and Applications of Nanoparticles

2018-11-26 Technology & Engineering
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Release : 2018-11-26
Genre : Technology & Engineering
Kind : eBook
Book Rating : 807/5 ( reviews)

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Book Synopsis Green Synthesis, Characterization and Applications of Nanoparticles by : Ashutosh Kumar Shukla

Download or read book Green Synthesis, Characterization and Applications of Nanoparticles written by Ashutosh Kumar Shukla. This book was released on 2018-11-26. Available in PDF, EPUB and Kindle. Book excerpt: Green Synthesis, Characterization and Applications of Nanoparticles shows how eco-friendly nanoparticles are engineered and used. In particular, metal nanoparticles, metal oxide nanoparticles and other categories of nanoparticles are discussed. The book outlines a range of methodologies and explores the appropriate use of each. Characterization methods include spectroscopic, microscopic and diffraction methods, but magnetic resonance methods are also included as they can be used to understand the mechanism of nanoparticle synthesis using organisms. Applications covered include targeted drug delivery, water purification and hydrogen generation. This is an important research resource for those wishing to learn more about how eco-efficient nanoparticles can best be used. Theoretical details and mathematical derivations are kept to a necessary minimum to suit the need of interdisciplinary audiences and those who may be relatively new to the field. - Explores recent trends in growth, characterization, properties and applications of nanoparticles - Gives readers an understanding on how they are applied through the use of case studies and examples - Assesses the advantages and disadvantages of a variety of synthesis and characterization techniques for green nanoparticles in different situations

Synthesis and Applications of Nanomaterials for Photocatalysis and Electrocatalysis

2020-05-12 Technology & Engineering
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Release : 2020-05-12
Genre : Technology & Engineering
Kind : eBook
Book Rating : 318/5 ( reviews)

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Book Synopsis Synthesis and Applications of Nanomaterials for Photocatalysis and Electrocatalysis by : Giuseppe Cappelletti

Download or read book Synthesis and Applications of Nanomaterials for Photocatalysis and Electrocatalysis written by Giuseppe Cappelletti. This book was released on 2020-05-12. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous catalysis, exploiting photo- and electrochemical reactions, has expanded rapidly in recent decades, having undergone various developments, especially from both energetic and environmental points of view. Photocatalysis plays a pivotal role in such applications as water splitting and air/water remediation. Electrocatalysis can be found in a large array of research fields, including the development of electroanalytical sensors, wastewater treatment, and energy conversion devices (e.g., batteries, fuel and solar cells, etc.). Therefore, the fine control of the synthetic procedures, together with extensive physicochemical characterisations of the tailor-made catalytic nanomaterials, are of fundamental importance to achieving the desired results. The present book will include recent enhancements in oxide/metal nanoparticles for photocatalytic and electrocatalytic applications, especially in the fields of pollutants abatement and energy conversion.

Nanocatalysis

2013-09-30 Technology & Engineering
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Release : 2013-09-30
Genre : Technology & Engineering
Kind : eBook
Book Rating : 86X/5 ( reviews)

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Book Synopsis Nanocatalysis by : Vivek Polshettiwar

Download or read book Nanocatalysis written by Vivek Polshettiwar. This book was released on 2013-09-30. Available in PDF, EPUB and Kindle. Book excerpt: Exhibiting both homogeneous and heterogeneous catalytic properties, nanocatalysts allow for rapid and selective chemical transformations, with the benefits of excellent product yield and ease of catalyst separation and recovery. This book reviews the catalytic performance and the synthesis and characterization of nanocatalysts, examining the current state of the art and pointing the way towards new avenues of research. Moreover, the authors discuss new and emerging applications of nanocatalysts and nanocatalysis, from pharmaceuticals to fine chemicals to renewable energy to biotransformations. Nanocatalysis features contributions from leading research groups around the world. These contributions reflect a thorough review of the current literature as well as the authors’ first-hand experience designing and synthesizing nanocatalysts and developing new applications for them. The book’s nineteen chapters offer a broad perspective, covering: Nanocatalysis for carbon-carbon and carbon-heteroatom coupling reactions Nanocatalysis for various organic transformations in fine chemical synthesis Nanocatalysis for oxidation, hydrogenation, and other related reactions Nanomaterial-based photocatalysis and biocatalysis Nanocatalysts to produce non-conventional energy such as hydrogen and biofuels Nanocatalysts and nano-biocatalysts in the chemical industry Readers will also learn about the latest spectroscopic and microscopy tools used in advanced characterization methods that shed new light on nanocatalysts and nanocatalysis. Moreover, the authors offer expert advice to help readers develop strategies to improve catalytic performance. Summarizing and reviewing all the most important advances in nanocatalysis over the last two decades, this book explains the many advantages of nanocatalysts over conventional homogeneous and heterogeneous catalysts, providing the information and guidance needed for designing green, sustainable catalytic processes.

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