Uranyl-modified TiO2 for complete photocatalytic oxidation of volatile organic compounds under UV and visible light

2019 ◽  
Vol 370 ◽  
pp. 1440-1449 ◽  
Author(s):  
Dmitry S. Selishchev ◽  
Tihon N. Filippov ◽  
Mikhail N. Lyulyukin ◽  
Denis V. Kozlov
Keyword(s):  
Volatile Organic Compounds ◽  
Visible Light ◽  
Organic Compounds ◽  
Photocatalytic Oxidation ◽  
Volatile Organic

The rate of photocatalytic oxidation of aromatic volatile organic compounds in the gas-phase

2008 ◽  
Vol 42 (34) ◽  
pp. 7844-7850 ◽  
Author(s):  
Aikaterini K. Boulamanti ◽  
Christos A. Korologos ◽  
Constantine J. Philippopoulos
Keyword(s):  
Volatile Organic Compounds ◽  
Gas Phase ◽  
Organic Compounds ◽  
Photocatalytic Oxidation ◽  
Volatile Organic

Correlations between Molecular Descriptors from Various Volatile Organic Compounds and Photocatalytic Oxidation Kinetic Constants

2013 ◽  
Vol 11 (2) ◽  
pp. 799-813 ◽  
Author(s):  
Cécile Raillard ◽  
Valérie Héquet ◽  
Bifen Gao ◽  
Heyok Choi ◽  
Dionysios D. Dionysiou ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Photocatalytic Oxidation ◽  
Molecular Descriptors ◽  
Equilibrium Constants ◽  
Oxidation Kinetic ◽  
Chemical Properties ◽  
Physico Chemical ◽  
Degradation Rates ◽  
Volatile Organic

Abstract The photocatalytic oxidation of seven typical indoor volatile organic compounds (VOCs) is experimentally investigated using novel nanocrystalline TiO2 dip-coated catalysts. Not only the role of hydrophilicity of the reactants but also other physico-chemical properties and molecular descriptors are studied and related to kinetic and equilibrium constants. The main objective of this work consists in establishing simple relationships that will be useful to deepen the understanding of gas-phase heterogeneous photocatalytic mechanisms and for the prediction of degradation rates of these VOCs using an indoor air treatment process.

Gas-Phase Destruction of VOCs Using TiO2/UV and TiO2/O3/UV

1998 ◽  
Vol 3 (2) ◽  
Author(s):  
Rosana M. Alberici ◽  
Wilson F. Jardim
Keyword(s):  
Thin Film ◽  
Volatile Organic Compounds ◽  
Gas Phase ◽  
Organic Compounds ◽  
Aromatic Compounds ◽  
Photocatalytic Oxidation ◽  
Catalyst Deactivation ◽  
Volatile Organic ◽  
Film Reactor ◽  
Catalytic Deactivation

AbstractGas-phase photocatalytic oxidation of different classes of volatile organic compounds (VOCs), including alkanes, ketones, alcohols, chlorinated compounds and aromatic compounds, was investigated using an annular thin film reactor. For all organic compounds tested, catalytic deactivation was not observed, except for toluene (506 ppmv). For this compound, maximum destruction (87%) was maintained during the first 60 min of irradiation, dropping steadily due to catalyst deactivation to 20% after 150 min. The use of ozone as auxiliary agent in the photocatalytic oxidation of toluene and pyridine was also tested. For toluene, when O

Status and challenges in photocatalytic nanotechnology for cleaning air polluted with volatile organic compounds: visible light utilization and catalyst deactivation

2019 ◽  
Vol 6 (11) ◽  
pp. 3185-3214 ◽  
Author(s):  
Seunghyun Weon ◽  
Fei He ◽  
Wonyong Choi
Keyword(s):  
Volatile Organic Compounds ◽  
Visible Light ◽  
Organic Compounds ◽  
Catalyst Deactivation ◽  
Semiconductor Nanoparticles ◽  
Air Purification ◽  
Environmental Technology ◽  
Light Utilization ◽  
Volatile Organic

Photocatalysis that utilizes semiconductor nanoparticles is one of the promising environmental technology for air purification.

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