Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Study Of Surface Modification And Effect Of Temperature On Charge Carrier Generation And Recombination
Download Study Of Surface Modification And Effect Of Temperature On Charge Carrier Generation And Recombination full books in PDF, epub, and Kindle. Read online Study Of Surface Modification And Effect Of Temperature On Charge Carrier Generation And Recombination ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Study of Surface Modification and Effect of Temperature on Charge Carrier Generation and Recombination by : Piyapong Pattanapanishsawat
Download or read book Study of Surface Modification and Effect of Temperature on Charge Carrier Generation and Recombination written by Piyapong Pattanapanishsawat and published by . This book was released on 2010 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous photocatalytic oxidation allows many applications in industry use. Titanium dioxide (TiO2) is one of the most efficient photocatalysts due to its chemical stability, non-toxicity and low cost. Many studies on photocatalytic activity have been done on various types of surface-modified TiO2 catalysts but not on SiH4 modified TiO2. In this study, TiO2 (P25, Degussa) was treated with SiH4 and its photocatalytic activity has been observed and compared with that of non-treated TiO2. In order to understand some of the observations, various techniques such as introduction of varied ratio of EtOH/O2 pulses, variation of temperature, H2 and O2 exposure, phasing exposure of TiO2 to UV illumination and dark have been incorporated. From the results, the increase on the absorbance intensity at 2000 cm−1 (i.e. I2000, background shift), was observed on SiH4-treated TiO2. This could be due to inhibition of electron-hole recombination process by blockage/removal of electron hole recombination centers such as surface hydroxyl groups and adsorbed water. Excessive coverage of SiO2 on TiO2 surface lowered the photocatalytic oxidation rate due to blockage of oxidation sites. Quick drops followed by rises of the intensity of the background shift after EtOH/O2 pulses indicated faster consumption rate of photogenerated electrons by O2 comparing to the rate of accumulation of photogenerated electrons caused by the reaction of CH3CH2OHad and CH3CH2Oad with holes. This suggests that surface holes are more readily active than electrons and the majority of the photogenerated electrons are in the bulk. Increasing the ratio of O2 resulted in increased CO2 from different path of reactions. The background shift under abundant O2 was low due to electron scavenging. H2 can cause generation of trapped Ti atom as Ti3+. The trapped Ti3+ atoms can be exited resulting in separation of electron and hole and, in turn, causing higher background shift. The density of photogenerated electrons was higher during the first UV illumination phase at 80°C than that at 30°C and the opposite could be observed during the third UV illumination phase. The extent of the background shift can be correlated with the photocatalytic oxidation rate of ethanol. Dark exposure caused faster background shift decay at 80°C comparing to that at 30°C indicating a faster electron-hole recombination process.
Book Synopsis Effects of Surface Modification on Charge-carrier Dynamics at Semiconductor Interfaces by : Agnes Juang
Download or read book Effects of Surface Modification on Charge-carrier Dynamics at Semiconductor Interfaces written by Agnes Juang and published by . This book was released on 2003 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the basic concepts of semiconductor junctions is an important step towards the development of efficient solar energy conversion devices. The work described in this dissertation includes both the investigation of semiconductor/liquid junctions and the modification of semiconductor surfaces for achieving chemical control over physical properties.
Book Synopsis Visible-Light-Active Photocatalysis by : Srabanti Ghosh
Download or read book Visible-Light-Active Photocatalysis written by Srabanti Ghosh and published by John Wiley & Sons. This book was released on 2018-03-29 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and timely overview of this important and hot topic, with special emphasis placed on environmental applications and the potential for solar light harvesting. Following introductory chapters on environmental photocatalysis, water splitting, and applications in synthetic chemistry, further chapters focus on the synthesis and design of photocatalysts, solar energy conversion, and such environmental aspects as the removal of water pollutants, photocatalytic conversion of CO2. Besides metal oxide-based photocatalysts, the authors cover other relevant material classes including carbon-based nanomaterials and novel hybrid materials. Chapters on mechanistic aspects, computational modeling of photocatalysis and Challenges and perspectives of solar reactor design for industrial applications complete this unique survey of the subject. With its in-depth discussions ranging from a comprehensive understanding to the engineering of materials and applied devices, this is an invaluable resource for a range of disciplines.
Book Synopsis Proceedings of the IRE. by : Institute of Radio Engineers
Download or read book Proceedings of the IRE. written by Institute of Radio Engineers and published by . This book was released on 1961 with total page 1580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the IRE. written by and published by . This book was released on 1960 with total page 1456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Space Charge Effects in Semiconductors by : Karl W. Böer
Download or read book Introduction to Space Charge Effects in Semiconductors written by Karl W. Böer and published by Springer Science & Business Media. This book was released on 2009-12-03 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describing space-charge effects in semiconductors, this text moves from basic principles to advanced application in semiconducting devices. It uses detailed analyses of the transport, Poisson, and continuity equations to show the behavior of solution curves.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Springer Handbook of Inorganic Photochemistry by : Detlef Bahnemann
Download or read book Springer Handbook of Inorganic Photochemistry written by Detlef Bahnemann and published by Springer Nature. This book was released on 2022-06-25 with total page 1914 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook comprehensively covers the field of inorganic photochemistry from the fundamentals to the main applications. The first section of the book describes the historical development of inorganic photochemistry, along with the fundamentals related to this multidisciplinary scientific field. The main experimental techniques employed in state-of-art studies are described in detail in the second section followed by a third section including theoretical investigations in the field. In the next three sections, the photophysical and photochemical properties of coordination compounds, supramolecular systems and inorganic semiconductors are summarized by experts on these materials. Finally, the application of photoactive inorganic compounds in key sectors of our society is highlighted. The sections cover applications in bioimaging and sensing, drug delivery and cancer therapy, solar energy conversion to electricity and fuels, organic synthesis, environmental remediation and optoelectronics among others. The chapters provide a concise overview of the main achievements in the recent years and highlight the challenges for future research. This handbook offers a unique compilation for practitioners of inorganic photochemistry in both industry and academia.
Book Synopsis Heterogeneous Photocatalysis by : M. Schiavello
Download or read book Heterogeneous Photocatalysis written by M. Schiavello and published by . This book was released on 1997-10-09 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photocatalysis is a reaction which is accelerated by light while a heterogeneous reaction consists of two phases ( a solid and a liquid for example). Heterogeneous Photocatalysis is a fast developing science which to date has not been fully detailed in a monograph. This title discusses the basic principles of heterogeneous photocatalysis and describes the bulk and surface properties of semiconductors. Applications of various types of photoreactions are described and the problems related to the modeling and design of photoreactors are covered.
Author :United States. Energy Research and Development Administration. Technical Information Center Publisher : ISBN 13 : Total Pages :1118 pages Book Rating :4.3/5 (129 download)
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration. Technical Information Center
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 1430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Ceramic Abstracts written by and published by . This book was released on 1998 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photocatalysis by : Suresh C. Pillai
Download or read book Photocatalysis written by Suresh C. Pillai and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-08-23 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a concise and up-to-date introduction to the topic of photocatalysis. It covers the fundamentals of photocatalysis, design of photoreactors and modelling and simulations for photoreaction. Also, industrial applications such as hydrogen production, water disinfection, degradation of air pollutants, pesticides and pharmaceuticals are described.
Download or read book Solar Energy Update written by and published by . This book was released on 1984 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1983 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
