Investigation of the Effects of Controlled Periodic Illumination on the Oxidation of Gaseous Trichloroethylene Using a Thin Film of TiO2

Investigation of the Effects of Controlled Periodic Illumination on the Oxidation of Gaseous Trichloroethylene Using a Thin Film of TiO2

Enhancement of gas-phase photocatalytic oxidation by controlled periodic illumination (CPI) was investigated. The oxidation of trichloroethylene (TCE) was studied in a versatile reactor designed to provide periodic illumination of the TiO2 films. The reactor was operated in two different geometric c...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Industrial & engineering chemistry research 1999-03, Vol.38 (3), p.892-896
Hauptverfasser: Buechler, Karen J, Noble, Richard D, Koval, Carl A, Jacoby, William A
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Exact sciences and technology
General and physical chemistry
Photochemistry
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 896
container_issue 3
container_start_page 892
container_title Industrial & engineering chemistry research
container_volume 38
creator Buechler, Karen J
Noble, Richard D
Koval, Carl A
Jacoby, William A
description Enhancement of gas-phase photocatalytic oxidation by controlled periodic illumination (CPI) was investigated. The oxidation of trichloroethylene (TCE) was studied in a versatile reactor designed to provide periodic illumination of the TiO2 films. The reactor was operated in two different geometric configurations, tubular and annular. Multiple flow regimes were investigated:  kinetic- and diffusion-limited. No enhancement on the rate or the selectivity of TCE oxidation was observed at any of the CPI conditions investigated in the kinetically limited flow regime. The ratio of TCE oxidized to dichloroacetyl chloride (DCAC) produced was 0.59 at all light and dark times investigated for kinetically limited operation. In diffusion-limited regimes, CPI increased the rate of oxidation and decreased the relative amount of DCAC in the product stream. In the kinetic-limited regimes the apparent quantum yield was constant at around 150%; however, in the diffusion-limited regimes the apparent quantum yield almost doubled with CPI.
doi_str_mv 10.1021/ie9804374
format Article
fullrecord <record><control><sourceid>istex_pasca</sourceid><recordid>TN_cdi_pascalfrancis_primary_1705632</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>ark_67375_TPS_LRJP1VWG_W</sourcerecordid><originalsourceid>FETCH-LOGICAL-a287t-a8eb2d9a688351d4aed18e641474a479d32f963565bfc0e909575e2176b56c0d3</originalsourceid><addsrcrecordid>eNo9kUFPAjEUhBujiYge_Ac96HG13W233aMhihgSiC5ybMruWyiW1rSLgX_gzxaEcJq8zDeTvAxCt5Q8UJLSRwOFJCwT7Ax1KE9Jwgnj56hDpJQJl5JfoqsYl4QQzhnroN-B-4HYmrlujXfYN7hdAH5uGqjauD973rXBWws1HkMwvjYVHli7Xhl3jLj_yGhj6lNHX0fw64jLYKqF9cFDu9hacIAn0bg51rhcGIdfjF3t8dKM0mt00Wgb4eaoXTR5eS57r8lw1B_0noaJTqVoEy1hltaFzqXMOK2ZhppKyBllgmkmijpLmyLPeM5nTUWgIAUXHFIq8hnPK1JnXXR36P3WsdK2CdpVJqrvYFY6bBUVhOdZusOSA2ZiC5uTrcOXykUmuCrHH2r4_jamn9O-mu74-wOvq6iWfh3c7glFidqvok6rZH9zhn9I</addsrcrecordid><sourcetype>Index Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Investigation of the Effects of Controlled Periodic Illumination on the Oxidation of Gaseous Trichloroethylene Using a Thin Film of TiO2</title><source>ACS Publications</source><creator>Buechler, Karen J ; Noble, Richard D ; Koval, Carl A ; Jacoby, William A</creator><creatorcontrib>Buechler, Karen J ; Noble, Richard D ; Koval, Carl A ; Jacoby, William A</creatorcontrib><description>Enhancement of gas-phase photocatalytic oxidation by controlled periodic illumination (CPI) was investigated. The oxidation of trichloroethylene (TCE) was studied in a versatile reactor designed to provide periodic illumination of the TiO2 films. The reactor was operated in two different geometric configurations, tubular and annular. Multiple flow regimes were investigated:  kinetic- and diffusion-limited. No enhancement on the rate or the selectivity of TCE oxidation was observed at any of the CPI conditions investigated in the kinetically limited flow regime. The ratio of TCE oxidized to dichloroacetyl chloride (DCAC) produced was 0.59 at all light and dark times investigated for kinetically limited operation. In diffusion-limited regimes, CPI increased the rate of oxidation and decreased the relative amount of DCAC in the product stream. In the kinetic-limited regimes the apparent quantum yield was constant at around 150%; however, in the diffusion-limited regimes the apparent quantum yield almost doubled with CPI.</description><identifier>ISSN: 0888-5885</identifier><identifier>EISSN: 1520-5045</identifier><identifier>DOI: 10.1021/ie9804374</identifier><identifier>CODEN: IECRED</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Chemistry ; Exact sciences and technology ; General and physical chemistry ; Photochemistry ; Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</subject><ispartof>Industrial &amp; engineering chemistry research, 1999-03, Vol.38 (3), p.892-896</ispartof><rights>Copyright © 1999 American Chemical Society</rights><rights>1999 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/ie9804374$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ie9804374$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,27053,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=1705632$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Buechler, Karen J</creatorcontrib><creatorcontrib>Noble, Richard D</creatorcontrib><creatorcontrib>Koval, Carl A</creatorcontrib><creatorcontrib>Jacoby, William A</creatorcontrib><title>Investigation of the Effects of Controlled Periodic Illumination on the Oxidation of Gaseous Trichloroethylene Using a Thin Film of TiO2</title><title>Industrial &amp; engineering chemistry research</title><addtitle>Ind. Eng. Chem. Res</addtitle><description>Enhancement of gas-phase photocatalytic oxidation by controlled periodic illumination (CPI) was investigated. The oxidation of trichloroethylene (TCE) was studied in a versatile reactor designed to provide periodic illumination of the TiO2 films. The reactor was operated in two different geometric configurations, tubular and annular. Multiple flow regimes were investigated:  kinetic- and diffusion-limited. No enhancement on the rate or the selectivity of TCE oxidation was observed at any of the CPI conditions investigated in the kinetically limited flow regime. The ratio of TCE oxidized to dichloroacetyl chloride (DCAC) produced was 0.59 at all light and dark times investigated for kinetically limited operation. In diffusion-limited regimes, CPI increased the rate of oxidation and decreased the relative amount of DCAC in the product stream. In the kinetic-limited regimes the apparent quantum yield was constant at around 150%; however, in the diffusion-limited regimes the apparent quantum yield almost doubled with CPI.</description><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Photochemistry</subject><subject>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</subject><issn>0888-5885</issn><issn>1520-5045</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNo9kUFPAjEUhBujiYge_Ac96HG13W233aMhihgSiC5ybMruWyiW1rSLgX_gzxaEcJq8zDeTvAxCt5Q8UJLSRwOFJCwT7Ax1KE9Jwgnj56hDpJQJl5JfoqsYl4QQzhnroN-B-4HYmrlujXfYN7hdAH5uGqjauD973rXBWws1HkMwvjYVHli7Xhl3jLj_yGhj6lNHX0fw64jLYKqF9cFDu9hacIAn0bg51rhcGIdfjF3t8dKM0mt00Wgb4eaoXTR5eS57r8lw1B_0noaJTqVoEy1hltaFzqXMOK2ZhppKyBllgmkmijpLmyLPeM5nTUWgIAUXHFIq8hnPK1JnXXR36P3WsdK2CdpVJqrvYFY6bBUVhOdZusOSA2ZiC5uTrcOXykUmuCrHH2r4_jamn9O-mu74-wOvq6iWfh3c7glFidqvok6rZH9zhn9I</recordid><startdate>19990301</startdate><enddate>19990301</enddate><creator>Buechler, Karen J</creator><creator>Noble, Richard D</creator><creator>Koval, Carl A</creator><creator>Jacoby, William A</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope></search><sort><creationdate>19990301</creationdate><title>Investigation of the Effects of Controlled Periodic Illumination on the Oxidation of Gaseous Trichloroethylene Using a Thin Film of TiO2</title><author>Buechler, Karen J ; Noble, Richard D ; Koval, Carl A ; Jacoby, William A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a287t-a8eb2d9a688351d4aed18e641474a479d32f963565bfc0e909575e2176b56c0d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Photochemistry</topic><topic>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Buechler, Karen J</creatorcontrib><creatorcontrib>Noble, Richard D</creatorcontrib><creatorcontrib>Koval, Carl A</creatorcontrib><creatorcontrib>Jacoby, William A</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><jtitle>Industrial &amp; engineering chemistry research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Buechler, Karen J</au><au>Noble, Richard D</au><au>Koval, Carl A</au><au>Jacoby, William A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigation of the Effects of Controlled Periodic Illumination on the Oxidation of Gaseous Trichloroethylene Using a Thin Film of TiO2</atitle><jtitle>Industrial &amp; engineering chemistry research</jtitle><addtitle>Ind. Eng. Chem. Res</addtitle><date>1999-03-01</date><risdate>1999</risdate><volume>38</volume><issue>3</issue><spage>892</spage><epage>896</epage><pages>892-896</pages><issn>0888-5885</issn><eissn>1520-5045</eissn><coden>IECRED</coden><abstract>Enhancement of gas-phase photocatalytic oxidation by controlled periodic illumination (CPI) was investigated. The oxidation of trichloroethylene (TCE) was studied in a versatile reactor designed to provide periodic illumination of the TiO2 films. The reactor was operated in two different geometric configurations, tubular and annular. Multiple flow regimes were investigated:  kinetic- and diffusion-limited. No enhancement on the rate or the selectivity of TCE oxidation was observed at any of the CPI conditions investigated in the kinetically limited flow regime. The ratio of TCE oxidized to dichloroacetyl chloride (DCAC) produced was 0.59 at all light and dark times investigated for kinetically limited operation. In diffusion-limited regimes, CPI increased the rate of oxidation and decreased the relative amount of DCAC in the product stream. In the kinetic-limited regimes the apparent quantum yield was constant at around 150%; however, in the diffusion-limited regimes the apparent quantum yield almost doubled with CPI.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ie9804374</doi><tpages>5</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0888-5885
ispartof Industrial & engineering chemistry research, 1999-03, Vol.38 (3), p.892-896
issn 0888-5885
1520-5045
language eng
recordid cdi_pascalfrancis_primary_1705632
source ACS Publications
subjects Chemistry
Exact sciences and technology
General and physical chemistry
Photochemistry
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
title Investigation of the Effects of Controlled Periodic Illumination on the Oxidation of Gaseous Trichloroethylene Using a Thin Film of TiO2
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-15T10%3A56%3A48IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-istex_pasca&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Investigation%20of%20the%20Effects%20of%20Controlled%20Periodic%20Illumination%20on%20the%20Oxidation%20of%20Gaseous%20Trichloroethylene%20Using%20a%20Thin%20Film%20of%20TiO2&rft.jtitle=Industrial%20&%20engineering%20chemistry%20research&rft.au=Buechler,%20Karen%20J&rft.date=1999-03-01&rft.volume=38&rft.issue=3&rft.spage=892&rft.epage=896&rft.pages=892-896&rft.issn=0888-5885&rft.eissn=1520-5045&rft.coden=IECRED&rft_id=info:doi/10.1021/ie9804374&rft_dat=%3Cistex_pasca%3Eark_67375_TPS_LRJP1VWG_W%3C/istex_pasca%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true