Kinetic Studies of Indoor Volatile Organic Compounds Removal with Functional TiO2-Based Coating

Simultaneous removal of bacteria and volatile organic compounds on Cu2O-NPs decorated TiO2 nanotubes: Competition effect and kinetic studies

Journal of Photochemistry and Photobiology A Chemistry ◽

10.1016/j.jphotochem.2020.112722 ◽

2020 ◽

Vol 400 ◽

pp. 112722 ◽

Cited By ~ 1

Author(s):

M. Abidi ◽

A Hajjaji ◽

A. Bouzaza ◽

K Trablesi ◽

H. Makhlouf ◽

...

Keyword(s):

Volatile Organic Compounds ◽

Organic Compounds ◽

Tio2 Nanotubes ◽

Kinetic Studies ◽

Simultaneous Removal ◽

Competition Effect ◽

Volatile Organic

Download Full-text

Comparison of different TiO2 photocatalysts for the gas phase oxidation of volatile organic compounds

Water Science & Technology ◽

10.2166/wst.2004.0274 ◽

2004 ◽

Vol 50 (4) ◽

pp. 241-250 ◽

Cited By ~ 12

Author(s):

C. Raillard ◽

V. Héquet ◽

P. Le Cloirec ◽

J. Legrand

Keyword(s):

Volatile Organic Compounds ◽

Methyl Ethyl Ketone ◽

Organic Compounds ◽

Indoor Air ◽

Photocatalytic Oxidation ◽

Kinetic Studies ◽

Methyl Ethyl ◽

Low Concentrations ◽

Volatile Organic ◽

Indoor Air Pollutants

Gas-solid photocatalyzed oxidation of air contaminants is being explored more and more for possible application to decontamination, purification and deodorization of enclosed atmospheres. Indoor air is characterized by a huge number of pollutants at low concentrations. Volatile organic compounds (VOC) represent the main indoor air pollutants category, and are of great concern since some of them can act negatively on human health. Several treatments exist to reduce VOC concentrations in gaseous effluents, but photocatalytic oxidation appears to be the most appropriate regarding indoor air specific constraints. It is then necessary to develop photocatalysts, which can possibly be used in an application such as indoor air-quality improvement. In the present work, three different TiO2-based materials were studied and compared for the photocatalytic oxidation of a typical pollutant of indoor air: methyl ethyl ketone. Kinetic studies were performed for each material in dry and humid air conditions, and the Langmuir-Hinshelwood model was satisfactorily applied in almost every case. A second approach consisted of determining methyl ethyl ketone degradation by-products. Acetaldehyde was found to be the main gaseous intermediate, and could be taken into account in the general Langmuir-Hinshelwood modeling.

Download Full-text