Ultrasonic aerosol spray-assisted preparation of TiO2/In2O3 composite for visible-light-driven photocatalysis
Identifieur interne : 000005 ( Main/Repository ); précédent : 000004; suivant : 000006Ultrasonic aerosol spray-assisted preparation of TiO2/In2O3 composite for visible-light-driven photocatalysis
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Abstract
A TiO2/In2O3 composite photocatalyst has been prepared by using a facile ultrasonic aerosol spray (UAS)-assisted method. Results from scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and N2 adsorption-desorption measurements reveal that the as-prepared TiO2/In2O3 composite exhibits a porous structure and spherical morphology. The diameter ranges from tens of nanometers to several micrometers. According to the UV-vis diffuse reflectance spectra, the TiO2/In2O3 composite shows good visible-light absorption ability. The photocatalytic activity of the samples was evaluated by the decomposition of organic dyes in aqueous solutions under visible-light irradiation. All the composite samples show excellent photocatalytic performance. The effect of In2O3 content on the photocatalytic activity was also investigated. The best photocatalytic activity results from the TiO2/In2O3 sample with Ti:In molar ratio of 100:1. The UAS-assisted method can also be applied for the preparation of other composite semiconductor materials. It provides a general approach for scaling up the production of photocatalysts for practical applications.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Ultrasonic aerosol spray-assisted preparation of TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite for visible-light-driven photocatalysis</title><author><name>CHUANHAO LI</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>School of Chemistry and Chemical Engineering, Anhui University</s1><s2>Hefei</s2><s3>CHN</s3><sZ>1 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Hefei</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Chemistry and Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Shatin, New Territories</s1><s2>Hong Kong</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Hong Kong</wicri:noRegion></affiliation></author><author><name>TIAN MING</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories</s1><s2>Hong Kong</s2><s3>CHN</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Hong Kong</wicri:noRegion></affiliation></author><author><name>JUNXIN WANG</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories</s1><s2>Hong Kong</s2><s3>CHN</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Hong Kong</wicri:noRegion></affiliation></author><author><name>JIANFANG WANG</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories</s1><s2>Hong Kong</s2><s3>CHN</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Hong Kong</wicri:noRegion></affiliation></author><author><name sortKey="Yu, Jimmy C" uniqKey="Yu J">Jimmy C. Yu</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Chemistry and Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Shatin, New Territories</s1><s2>Hong Kong</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Hong Kong</wicri:noRegion></affiliation></author><author><name sortKey="Yu, Shu Hong" uniqKey="Yu S">Shu-Hong Yu</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Department of Chemistry, University of Science and Technology of China</s1><s2>Hefei</s2><s3>CHN</s3><sZ>6 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Hefei</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">14-0040667</idno><date when="2014">2014</date><idno type="stanalyst">PASCAL 14-0040667 INIST</idno><idno type="RBID">Pascal:14-0040667</idno><idno type="wicri:Area/Main/Corpus">000191</idno><idno type="wicri:Area/Main/Repository">000005</idno></publicationStmt><seriesStmt><idno type="ISSN">0021-9517</idno><title level="j" type="abbreviated">J. catal. : (Print)</title><title level="j" type="main">Journal of catalysis : (Print)</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Composite material</term><term>Heterogeneous catalysis</term><term>Indium oxide</term><term>Photocatalysis</term><term>Photocatalyst</term><term>Preparation</term><term>Titanium oxide</term><term>Ultrasound</term><term>Visible radiation</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Ultrason</term><term>Préparation</term><term>Oxyde de titane</term><term>Matériau composite</term><term>Photocatalyse</term><term>Oxyde d'indium</term><term>Catalyse hétérogène</term><term>Rayonnement visible</term><term>TiO2</term><term>In2O3</term><term>Photocatalyseur</term></keywords><keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Matériau composite</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite photocatalyst has been prepared by using a facile ultrasonic aerosol spray (UAS)-assisted method. Results from scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and N<sub>2</sub> adsorption-desorption measurements reveal that the as-prepared TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite exhibits a porous structure and spherical morphology. The diameter ranges from tens of nanometers to several micrometers. According to the UV-vis diffuse reflectance spectra, the TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite shows good visible-light absorption ability. The photocatalytic activity of the samples was evaluated by the decomposition of organic dyes in aqueous solutions under visible-light irradiation. All the composite samples show excellent photocatalytic performance. The effect of In<sub>2</sub>O<sub>3</sub> content on the photocatalytic activity was also investigated. The best photocatalytic activity results from the TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> sample with Ti:In molar ratio of 100:1. The UAS-assisted method can also be applied for the preparation of other composite semiconductor materials. It provides a general approach for scaling up the production of photocatalysts for practical applications.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0021-9517</s0></fA01><fA02 i1="01"><s0>JCTLA5</s0></fA02><fA03 i2="1"><s0>J. catal. : (Print)</s0></fA03><fA05><s2>310</s2></fA05><fA08 i1="01" i2="1" l="ENG"><s1>Ultrasonic aerosol spray-assisted preparation of TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite for visible-light-driven photocatalysis</s1></fA08><fA09 i1="01" i2="1" l="ENG"><s1>Special issue on Photocatalysis and Photoelectrolysis</s1></fA09><fA11 i1="01" i2="1"><s1>CHUANHAO LI</s1></fA11><fA11 i1="02" i2="1"><s1>TIAN MING</s1></fA11><fA11 i1="03" i2="1"><s1>JUNXIN WANG</s1></fA11><fA11 i1="04" i2="1"><s1>JIANFANG WANG</s1></fA11><fA11 i1="05" i2="1"><s1>YU (Jimmy C.)</s1></fA11><fA11 i1="06" i2="1"><s1>YU (Shu-Hong)</s1></fA11><fA12 i1="01" i2="1"><s1>LI (Can)</s1><s9>ed.</s9></fA12><fA12 i1="02" i2="1"><s1>DOMEN (Kazunari)</s1><s9>ed.</s9></fA12><fA12 i1="03" i2="1"><s1>HUTCHINGS (Graham J.)</s1><s9>ed.</s9></fA12><fA14 i1="01"><s1>School of Chemistry and Chemical Engineering, Anhui University</s1><s2>Hefei</s2><s3>CHN</s3><sZ>1 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Chemistry and Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Shatin, New Territories</s1><s2>Hong Kong</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>5 aut.</sZ></fA14><fA14 i1="03"><s1>Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories</s1><s2>Hong Kong</s2><s3>CHN</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></fA14><fA14 i1="04"><s1>Department of Chemistry, University of Science and Technology of China</s1><s2>Hefei</s2><s3>CHN</s3><sZ>6 aut.</sZ></fA14><fA20><s1>84-90</s1></fA20><fA21><s1>2014</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>9623</s2><s5>354000501653990120</s5></fA43><fA44><s0>0000</s0><s1>© 2014 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>46 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>14-0040667</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of catalysis : (Print)</s0></fA64><fA66 i1="01"><s0>NLD</s0></fA66><fC01 i1="01" l="ENG"><s0>A TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite photocatalyst has been prepared by using a facile ultrasonic aerosol spray (UAS)-assisted method. Results from scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and N<sub>2</sub> adsorption-desorption measurements reveal that the as-prepared TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite exhibits a porous structure and spherical morphology. The diameter ranges from tens of nanometers to several micrometers. According to the UV-vis diffuse reflectance spectra, the TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> composite shows good visible-light absorption ability. The photocatalytic activity of the samples was evaluated by the decomposition of organic dyes in aqueous solutions under visible-light irradiation. All the composite samples show excellent photocatalytic performance. The effect of In<sub>2</sub>O<sub>3</sub> content on the photocatalytic activity was also investigated. The best photocatalytic activity results from the TiO<sub>2</sub>/In<sub>2</sub>O<sub>3</sub> sample with Ti:In molar ratio of 100:1. The UAS-assisted method can also be applied for the preparation of other composite semiconductor materials. 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