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1,225 Newest Publications about the topic ozone

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Efficient eco-clean upgrading of isolated cellulose fibers by polyoxometalate (POM) catalyzed ozonation boosted by enzymes

13-Sep-2017 | Anatoly A. Shatalov, Green Chemistry, 2017

The extremely selective and effective delignification (bleaching) approach for upgrading of isolated cellulose fibers by ozone in the presence of mixed-addenda α-Keggin-type polyoxometalates (POM), such as heteropolyanions of series [PMo(12-n)VnO40](3+n)-, in aqueous solvent solutions has been ...

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Sensors, Vol. 17, Pages 2072: Quantifying Neighborhood-Scale Spatial Variations of Ozone at Open Space and Urban Sites in Boulder, Colorado Using Low-Cost Sensor Technology

10-Sep-2017 | Cheadle, Lucy ; Deanes, Lauren ; Sadighi, Kira ; Gordon Casey, Joanna ; Collier-Oxandale, Ashley ; Hannigan, Michael, Sensors, 2017

Sensors, Vol. 17, Pages 2072: Quantifying Neighborhood-Scale Spatial Variations of Ozone at Open Space and Urban Sites in Boulder, Colorado Using Low-Cost Sensor Technology Sensors doi: 10.3390/s17092072 Authors: Lucy Cheadle Lauren Deanes Kira Sadighi Joanna Gordon Casey Ashley ...

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Design and Feasibility Analysis of a Self-Sustaining Biofiltration System for Removal of Low Concentration N2O Emitted from Wastewater Treatment Plants

08-Sep-2017 | Hyun Yoon; Min Joon Song; Sukhwan Yoon, Environmental Science & Technology, 2017

N2O is a potent greenhouse gas and ozone-depletion agent. In this study, a biofiltration system was designed for removal of N2O emitted at low concentrations (99...

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Area-Selective Atomic Layer Deposition of SiO2 Using Acetylacetone as a Chemoselective Inhibitor in an ABC-Type Cycle

07-Sep-2017 | Alfredo Mameli; Marc J. M. Merkx; Bora Karasulu; Fred Roozeboom; Wilhelmus (Erwin) M. M. Kessels; Adriaan J. M. Mackus, ACS Nano, 2017

Area-selective atomic layer deposition (ALD) is rapidly gaining interest because of its potential application in self-aligned fabrication schemes for next-generation nanoelectronics. Here, we introduce an approach for area-selective ALD that relies on the use of chemoselective inhibitor molecules ...

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Structure-dependent reactivity of Criegee intermediates studied with spectroscopic methods

30-Aug-2017 | Jim Jr-Min Lin; Wen Chao, Chemical Society Reviews, 2017

Criegee intermediates are very reactive carbonyl oxides that are formed in reactions of unsaturated hydrocarbons with ozone (ozonolysis). Recently, Criegee intermediates have gained significant attention since a new preparation method has been reported in 2012, which employs the reaction of ...

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Partially Oxidized Asphaltene as a Bitumen Viscosity Reducer

30-Aug-2017 | Seonung Choi; Siyoung Q. Choi; Jong-Duk Kim; Nam-sun Nho, Energy & Fuels, 2017

Heavy oil/bitumen with asphaltene requires high energy consumption for transportation, because of its high viscosity. This often causes serious pipeline problems; therefore, it is necessary to reduce the viscosity to resolve these issues. In this paper, we propose a new simple method to reduce ...

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Computational and Experimental Investigation of the Detection of HO2 Radical and the Products of Its Reaction with Cyclohexene Ozonolysis Derived RO2 Radicals by an Iodide-Based Chemical Ionization Mass Spectrometer

29-Aug-2017 | Siddharth Iyer; Xucheng He; Noora Hyttinen; Theo Kurtén; Matti P. Rissanen, Journal of Physical Chemistry A, 2017

The HO2 radical is an important atmospheric molecule that can potentially influence the termination of autoxidation processes of volatile organic compounds (VOCs) that lead to the formation of highly oxygenated multifunctional compounds (HOMs). In this work, we demonstrate the direct detection of ...

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Wavelength-Resolved Photon Fluxes of Indoor Light Sources: Implications for HOx Production

29-Aug-2017 | Shawn F. Kowal; Seth R. Allen; Tara F. Kahan, Environmental Science & Technology, 2017

Photochemistry is a largely unconsidered potential source of reactive species such as hydroxyl and peroxy radicals (OH and HO2, “HOx”) indoors. We present measured wavelength-resolved photon fluxes and distance dependences of indoor light sources including halogen, incandescent, and compact ...

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High Levels of Daytime Molecular Chlorine and Nitryl Chloride at a Rural Site on the North China Plain

24-Aug-2017 | Xiaoxi Liu; Hang Qu; L. Gregory Huey; Yuhang Wang; Steven Sjostedt; Limin Zeng; Keding Lu; Yusheng Wu; Min Hu; Min S ..., Environmental Science & Technology, 2017

Molecular chlorine (Cl2) and nitryl chloride (ClNO2) concentrations were measured using chemical ionization mass spectrometry at a rural site over the North China Plain during June 2014. High levels of daytime Cl2 up to ∼450 pptv were observed. The average diurnal Cl2 mixing ratios showed a ...

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Epoxide Formation from Heterogeneous Oxidation of Benzo[a]pyrene with Gas-phase Ozone and Indoor Air

23-Aug-2017 | Shouming Zhou; Leo Yeung; Mathew W Forbes; Scott Mabury; Jonathan Abbatt, Journal of Environmental Monitoring, 2017

The formation of two classes of epoxide products from the heterogeneous reaction of benzo[a]pyrene (BaP) with gas-phase ozone was demonstrated. BaP was coated on a Pyrex glass tube and oxidized with different concentrations of ozone. After oxidation, the epoxide products were derivatized by ...

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