Download or read book Gas phase photocatalytic oxidation of volatile organic compounds written by Anna Kachina and published by . This book was released on 2008 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas phase Photocatalytic Oxidation of Organic Air Pollutants written by Svetlana Jõks and published by . This book was released on 2012 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas phase Photocatalytic Oxidation Efficiency Enhancement by Periodidc Light Source Cycling written by Terrence Leonard George Koehler and published by . This book was released on 1996 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas phase Photocatalytic Oxidation written by Craig Steven Turchi and published by . This book was released on 1994 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Works of Art from Private Collections in the North West of England and North Wales written by and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas phase Photocatalytic Oxidation of Alkenes Using Nano structured Heterogeneous Semiconductor Materials written by Emmanuel Alhassan Kamba and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photocatalytic Oxidation of Gas Phase Butyraldehyde written by Cunping Huang and published by . This book was released on 2000 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photocatalytic Oxidation of Gas Phase Volatile Organic Compounds Using Undoped and Metal Ions Doped Titanium Dioxide Thin Films written by Noor Khaida Wati Mohd. Saiyudi and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Apparent Deactivation in the Photocatalytic Oxidation of Gas phase Aromatic Contaminants on Titanium Dioxide TiO2 written by Michael Lewandowski and published by . This book was released on 2002 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oxidation of Light Alkanes Using Photocatalytic Thin Films written by Troy Matthew Twesme and published by . This book was released on 2006 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This investigation studied the photocatalytic oxidation of light alkanes using photocatalytic thin films. In the research presented, nearly complete oxidation of isobutane, n-butane and propane using ZrO2/TiO2 thin films in a single pass reactor was demonstrated. The importance of reactor design on the effectiveness of the photocatalytic reaction is discussed in terms of photocatalyst packing and adequate illumination for catalyst activation. The influence of relative humidity in the contaminant feed stream and the reactor operating temperature were evaluated to establish optimal operating conditions for the photocatalytic reactor. Further photocatalytic studies used propane as a probe compound to investigate metal-modification of photocatalytic thin films as a means to improve propane oxidation and mineralization. Six precious metals (Ag, Au, Pd, Pt, Rh, and Ru) were tested at 1 weight percent loadings in TiO2, SiO2/TiO2, and ZrO2/TiO2 thin films. The photocatalytic reactor was operated at temperatures up to 100 C with the expectation that a thermal catalytic enhancement due to the precious metals would be observed. Propane conversion data revealed that at 1% loading, the addition of metals to the thin films reduced the activity for conversion of propane, regardless of temperature. However, the reactor temperature iii significantly affected light irradiance. Reaction rates adjusted for the influence of temperature on reactor irradiance revealed the highest reaction rates occurred at 100 C, but evaluation of Langmuir-Hinshelwood-Hougen-Watson kinetics showed that temperature significantly reduced the surface adsorption of propane. Of the 21 materials tested, an unmodified ZrO2/TiO2 thin film had the best activity for propane conversion and mineralization. Lastly, a novel method to investigate the photoinduced change in surface potential of photocatalytic thin films was investigated.

Download or read book Photocatalytic Oxidation of Gas phase BTEX contaminated Waste Streams written by David A. Gratson and published by . This book was released on 1995 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solving Widespread Low concentration VOC Air Pollution Problems written by Carol E. Lyons and published by . This book was released on 1995 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photocatalysis written by Nick Serpone and published by Wiley-Interscience. This book was released on 1989-10-20 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributors from around the world offer wide-ranging (and sometimes controversial) discussions of the state of research in photocatalysis. Emphasis is on the surface science of catalysis, especially at the gas/solid interface. Eighteen chapters explore topics ranging from the interaction between light and matter, colloidal semiconductors, and the thermodynamics and kinetics of photocatalysis, to photocatalysis in homogeneous and heterogeneous phases, photo-electrocatalysis, and catalysis in energy production and water purification.

Download or read book Solving Widespread Low concentration VOC Air Pollution Problems written by and published by . This book was released on 1995 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many small businesses are facing new regulations under the 1990 Amendments to the Clean Air Act. Regulators, as well as the businesses themselves, face new challenges to control small point-source air pollution emissions. An individual business-such as a dry cleaner, auto repair shop, bakery, coffee roaster, photo print shop, or chemical company-may be an insignificant source of air pollution, but collectively, the industry becomes a noticeable source. Often the businesses are not equipped to respond to new regulatory requirements because of limited resources, experience, and expertise. Also, existing control strategies may be inappropriate for these businesses, having been developed for major industries with high volumes, high pollutant concentrations, and substantial corporate resources. Gas-phase photocatalytic oxidation (PCO) is an option for eliminating low-concentration, low-flow-rate emissions of volatile organic compounds (VOCs) from small business point sources. The advantages PCO has over other treatment techniques are presented in this paper. This paper also describes how PCO can be applied to specific air pollution problems. We present our methodology for identifying pollution problems for which PCO is applicable and for reaching the technology's potential end users. PCO is compared to other gas-phase VOC control technologies.

Download or read book Titanium Dioxide Photocatalyst Deactivation by Gas phase Oxidation of Polymethylsiloxane PDMS and Silicone Sealant Off gas in a Recirculating Batch Reactor written by Maurice K. Chemweno and published by . This book was released on 2004 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indoor air quality is one of the most promising applications of photocatalytic oxidation. Rapid deactivation of the photocatalyst by ubiquitous indoor air pollutants would diminish the utility of photocatalytic technology. We have studied deactivation of TiO 2 photocatalyst by oxidation of PolyDiMethylSiloxane (PDMS) and silicone sealant off-gas in a recirculating batch reactor. The oxidation of the Si-containing vapor was monitored with an FTIR equipped with a gas cell. Subsequent to each incremental exposure, a hexane oxidation reaction was performed to track the TiO 2 catalyst activity. In this manner, loss of catalyst activity was quantitatively related to oxidation of Si-containing organic molecules. The exposures were repeated until a substantial deactivation was achieved. Surface science techniques were used to view the topography of the catalyst and to identify the elements causing the deactivation.

Download or read book Design Construction and Optimization of a High throughput System to Measure the Activity of TIO2 Nanotubes During Gas Phase Photocatalytic Oxidation of Organics written by Jordan A. Grasser and published by . This book was released on 2008 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Research Results for the Photocatalytic Oxidation of Hazardous Wastes in Air written by and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory experiments of gas-phase photocatalytic oxidation (PCO) at NREL have focused on measurements that can help commercialize this technology for treating gaseous air streams. This effort proceeds earlier NREL work and studies conducted elsewhere which demonstrates the general applicability of PCO. The more recent work concentrates on: the kinetics of PCO process; the formation anddestruction of intermediates; and possible enhancements to improve the destruction rates.