Photocatalytic Degradation of Aqueous Nitrobenzene by Nanocrystalline TiO2

This study investigated the role of the band gap, surface area, and phase composition on the photocatalytic activity of nanocrystalline TiO2. Nanocrystalline TiO2 (8−29 nm) was synthesized by hydrolysis of titanium tetraisopropoxide. The crystalline structure, band gap, and morphology of the nanocry...

Full description

Saved in:
Bibliographic Details
Published in:Industrial & engineering chemistry research 2006-02, Vol.45 (3), p.922-927
Main Authors: Tayade, Rajesh J, Kulkarni, Ramchandra G, Jasra, Raksh. V
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
Reactors
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites
container_end_page 927
container_issue 3
container_start_page 922
container_title Industrial & engineering chemistry research
container_volume 45
creator Tayade, Rajesh J
Kulkarni, Ramchandra G
Jasra, Raksh. V
description This study investigated the role of the band gap, surface area, and phase composition on the photocatalytic activity of nanocrystalline TiO2. Nanocrystalline TiO2 (8−29 nm) was synthesized by hydrolysis of titanium tetraisopropoxide. The crystalline structure, band gap, and morphology of the nanocrystalline TiO2 were determined by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), and N2 adsorption (BET) at 77 K, respectively. It is observed that the band gap of the nanocrystalline TiO2 decreases from 3.29 to 3.01 eV with increasing calcination temperature. The crystallite size of the TiO2 samples prepared also shows an increase with increasing calcination temperature. The photocatalytic degradation of an aqueous solution of nitrobenzene (50 ppm) was studied using nanocrystalline TiO2 samples with varying band-gap values, as well as a P-25 Degussa TiO2 sample for comparison. The initial rate of degradation of nitrobenzene was calculated in each case to evaluate the photocatalytic activity of the catalysts. The enhanced photocatalytic degradation of nitrobenzene was observed by purging air through the solution during photocatalysis.
doi_str_mv 10.1021/ie051060m
format article
fullrecord <record><control><sourceid>acs_pasca</sourceid><recordid>TN_cdi_pascalfrancis_primary_17735756</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>a608704354</sourcerecordid><originalsourceid>FETCH-LOGICAL-a271t-91f3cadf24186f8f9c07e90d3be9b1dc35c911bab3a100c7010f02aed53540413</originalsourceid><addsrcrecordid>eNpFUFtLwzAYDaLgnD74D_riY_VL0zTt45zOC3UbOMW38DVNNHNrNOnA-uutTObTgXODcwg5pXBOIaEXVgOnkMF6jwwoTyDmkPJ9MoA8z2Oe5_yQHIWwBADO03RA7udvrnUKW1x1rVXRlX71WGNrXRM5E40-N9ptQjS1rXeVbr51o6Oqi6bYOOW70MdWtqcWdpYckwODq6BP_nBInibXi_FtXM5u7sajMsZE0DYuqGEKa5OkNM9MbgoFQhdQs0oXFa0V46qgtMKKIQVQAigYSFDXnPEUUsqG5Gzb-4FB4cp4bJQN8sPbNfpOUiEYFzzrffHWZ0Orv3Y6-neZCSa4XMwfZfl8WeYvkweZ_veiCnLpNr7pV0gK8vdYuTuW_QBhBGoh</addsrcrecordid><sourcetype>Index Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Photocatalytic Degradation of Aqueous Nitrobenzene by Nanocrystalline TiO2</title><source>American Chemical Society:Jisc Collections:American Chemical Society Read &amp; Publish Agreement 2022-2024 (Reading list)</source><creator>Tayade, Rajesh J ; Kulkarni, Ramchandra G ; Jasra, Raksh. V</creator><creatorcontrib>Tayade, Rajesh J ; Kulkarni, Ramchandra G ; Jasra, Raksh. V</creatorcontrib><description>This study investigated the role of the band gap, surface area, and phase composition on the photocatalytic activity of nanocrystalline TiO2. Nanocrystalline TiO2 (8−29 nm) was synthesized by hydrolysis of titanium tetraisopropoxide. The crystalline structure, band gap, and morphology of the nanocrystalline TiO2 were determined by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), and N2 adsorption (BET) at 77 K, respectively. It is observed that the band gap of the nanocrystalline TiO2 decreases from 3.29 to 3.01 eV with increasing calcination temperature. The crystallite size of the TiO2 samples prepared also shows an increase with increasing calcination temperature. The photocatalytic degradation of an aqueous solution of nitrobenzene (50 ppm) was studied using nanocrystalline TiO2 samples with varying band-gap values, as well as a P-25 Degussa TiO2 sample for comparison. The initial rate of degradation of nitrobenzene was calculated in each case to evaluate the photocatalytic activity of the catalysts. The enhanced photocatalytic degradation of nitrobenzene was observed by purging air through the solution during photocatalysis.</description><identifier>ISSN: 0888-5885</identifier><identifier>EISSN: 1520-5045</identifier><identifier>DOI: 10.1021/ie051060m</identifier><identifier>CODEN: IECRED</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Chemical engineering ; Exact sciences and technology ; Reactors</subject><ispartof>Industrial &amp; engineering chemistry research, 2006-02, Vol.45 (3), p.922-927</ispartof><rights>Copyright © 2006 American Chemical Society</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=17735756$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Tayade, Rajesh J</creatorcontrib><creatorcontrib>Kulkarni, Ramchandra G</creatorcontrib><creatorcontrib>Jasra, Raksh. V</creatorcontrib><title>Photocatalytic Degradation of Aqueous Nitrobenzene by Nanocrystalline TiO2</title><title>Industrial &amp; engineering chemistry research</title><addtitle>Ind. Eng. Chem. Res</addtitle><description>This study investigated the role of the band gap, surface area, and phase composition on the photocatalytic activity of nanocrystalline TiO2. Nanocrystalline TiO2 (8−29 nm) was synthesized by hydrolysis of titanium tetraisopropoxide. The crystalline structure, band gap, and morphology of the nanocrystalline TiO2 were determined by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), and N2 adsorption (BET) at 77 K, respectively. It is observed that the band gap of the nanocrystalline TiO2 decreases from 3.29 to 3.01 eV with increasing calcination temperature. The crystallite size of the TiO2 samples prepared also shows an increase with increasing calcination temperature. The photocatalytic degradation of an aqueous solution of nitrobenzene (50 ppm) was studied using nanocrystalline TiO2 samples with varying band-gap values, as well as a P-25 Degussa TiO2 sample for comparison. The initial rate of degradation of nitrobenzene was calculated in each case to evaluate the photocatalytic activity of the catalysts. The enhanced photocatalytic degradation of nitrobenzene was observed by purging air through the solution during photocatalysis.</description><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>Exact sciences and technology</subject><subject>Reactors</subject><issn>0888-5885</issn><issn>1520-5045</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNpFUFtLwzAYDaLgnD74D_riY_VL0zTt45zOC3UbOMW38DVNNHNrNOnA-uutTObTgXODcwg5pXBOIaEXVgOnkMF6jwwoTyDmkPJ9MoA8z2Oe5_yQHIWwBADO03RA7udvrnUKW1x1rVXRlX71WGNrXRM5E40-N9ptQjS1rXeVbr51o6Oqi6bYOOW70MdWtqcWdpYckwODq6BP_nBInibXi_FtXM5u7sajMsZE0DYuqGEKa5OkNM9MbgoFQhdQs0oXFa0V46qgtMKKIQVQAigYSFDXnPEUUsqG5Gzb-4FB4cp4bJQN8sPbNfpOUiEYFzzrffHWZ0Orv3Y6-neZCSa4XMwfZfl8WeYvkweZ_veiCnLpNr7pV0gK8vdYuTuW_QBhBGoh</recordid><startdate>20060201</startdate><enddate>20060201</enddate><creator>Tayade, Rajesh J</creator><creator>Kulkarni, Ramchandra G</creator><creator>Jasra, Raksh. V</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope></search><sort><creationdate>20060201</creationdate><title>Photocatalytic Degradation of Aqueous Nitrobenzene by Nanocrystalline TiO2</title><author>Tayade, Rajesh J ; Kulkarni, Ramchandra G ; Jasra, Raksh. V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a271t-91f3cadf24186f8f9c07e90d3be9b1dc35c911bab3a100c7010f02aed53540413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>Exact sciences and technology</topic><topic>Reactors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tayade, Rajesh J</creatorcontrib><creatorcontrib>Kulkarni, Ramchandra G</creatorcontrib><creatorcontrib>Jasra, Raksh. V</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>Tayade, Rajesh J</au><au>Kulkarni, Ramchandra G</au><au>Jasra, Raksh. V</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photocatalytic Degradation of Aqueous Nitrobenzene by Nanocrystalline TiO2</atitle><jtitle>Industrial &amp; engineering chemistry research</jtitle><addtitle>Ind. Eng. Chem. Res</addtitle><date>2006-02-01</date><risdate>2006</risdate><volume>45</volume><issue>3</issue><spage>922</spage><epage>927</epage><pages>922-927</pages><issn>0888-5885</issn><eissn>1520-5045</eissn><coden>IECRED</coden><abstract>This study investigated the role of the band gap, surface area, and phase composition on the photocatalytic activity of nanocrystalline TiO2. Nanocrystalline TiO2 (8−29 nm) was synthesized by hydrolysis of titanium tetraisopropoxide. The crystalline structure, band gap, and morphology of the nanocrystalline TiO2 were determined by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), and N2 adsorption (BET) at 77 K, respectively. It is observed that the band gap of the nanocrystalline TiO2 decreases from 3.29 to 3.01 eV with increasing calcination temperature. The crystallite size of the TiO2 samples prepared also shows an increase with increasing calcination temperature. The photocatalytic degradation of an aqueous solution of nitrobenzene (50 ppm) was studied using nanocrystalline TiO2 samples with varying band-gap values, as well as a P-25 Degussa TiO2 sample for comparison. The initial rate of degradation of nitrobenzene was calculated in each case to evaluate the photocatalytic activity of the catalysts. The enhanced photocatalytic degradation of nitrobenzene was observed by purging air through the solution during photocatalysis.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ie051060m</doi><tpages>6</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0888-5885
ispartof Industrial & engineering chemistry research, 2006-02, Vol.45 (3), p.922-927
issn 0888-5885
1520-5045
language eng
recordid cdi_pascalfrancis_primary_17735756
source American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list)
subjects Applied sciences
Chemical engineering
Exact sciences and technology
Reactors
title Photocatalytic Degradation of Aqueous Nitrobenzene by Nanocrystalline TiO2
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-26T06%3A14%3A46IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-acs_pasca&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Photocatalytic%20Degradation%20of%20Aqueous%20Nitrobenzene%20by%20Nanocrystalline%20TiO2&rft.jtitle=Industrial%20&%20engineering%20chemistry%20research&rft.au=Tayade,%20Rajesh%20J&rft.date=2006-02-01&rft.volume=45&rft.issue=3&rft.spage=922&rft.epage=927&rft.pages=922-927&rft.issn=0888-5885&rft.eissn=1520-5045&rft.coden=IECRED&rft_id=info:doi/10.1021/ie051060m&rft_dat=%3Cacs_pasca%3Ea608704354%3C/acs_pasca%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-a271t-91f3cadf24186f8f9c07e90d3be9b1dc35c911bab3a100c7010f02aed53540413%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true