fulltext.study @t Gmail

Fast purification of air from diethyl sulfide with nanosized TiO2 aerosol

Paper ID Volume ID Publish Year Pages File Format Full-Text
46013 46428 2013 7 PDF Available
Title
Fast purification of air from diethyl sulfide with nanosized TiO2 aerosol
Abstract

TiO2 aerosol generated by a sonic method has been applied for fast purification of air from diethyl sulfide (DES) vapors inside a closed chamber. Two types of experiments modeling the possible real situations were conducted – (1) aerosol spraying without irradiation followed by UV irradiation after aerosol deposition and (2) aerosol spraying under UV irradiation. Adsorption of DES on TiO2 particles was complete and fastest at the lowest air relative humidity (RH) while photocatalytic oxidation was fastest at RH 37%. The minimal TiO2 aerosol surface area needed to remove from air one DES molecule is 2.3 nm2 at the adsorption and 1.5 nm2 at the photocatalytic oxidation. The quantum efficiency of the DES consumption increases from 4.7 to 20% when the initial DES concentration increases from 100 to 1000 ppm. The overall quantum efficiency of the DES deep oxidation reached 41 and 58% for the initial concentration 100 and 1000 ppm, respectively. The results demonstrate unusually high activity of TiO2 aerosol for the adsorption-photocatalytic air purification from DES.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Diethyl sulfide (DES) is removed from gas phase by adsorption on TiO2 aerosol only at low air humidity. ► DES is efficiently removed by photocatalytic oxidation at moderate air humidity. ► The minimum surface area of TiO2 to remove one DES molecule is about 2 nm2. ► Air purification from DES by aerosol is obtained within 10 min.

Keywords
Atmospheric chemistry; CWA; Photocatalysis; Titanium dioxide; Titania; Decontamination; Anti-terrorism; Water concentration; Gas phase; Static; Nanoparticles; Sulfide; Troposphere
First Page Preview
Fast purification of air from diethyl sulfide with nanosized TiO2 aerosol
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 129, 17 January 2013, Pages 318–324
Authors
, , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us