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Cubic phase indium doped cadmium sulfide dispersed on zinc oxide: Enhanced photocatalytic activity for hydrogen generation from water

Identifieur interne : 000F74 ( Main/Repository ); précédent : 000F73; suivant : 000F75

Cubic phase indium doped cadmium sulfide dispersed on zinc oxide: Enhanced photocatalytic activity for hydrogen generation from water

Auteurs : RBID : Pascal:13-0283319

Descripteurs français

Pascal (Inist)
- Indium, Sulfure de cadmium, Oxyde de zinc, Photocatalyse, Hydrogène, Eau, Composé de métal de transition, Matériau composite, Catalyse hétérogène, ZnO, O Zn, CdS, Photocatalyseur.
Wicri :
- concept : Hydrogène, Eau, Matériau composite.

English descriptors

KwdEn :
- Cadmium sulfide, Composite material, Heterogeneous catalysis, Hydrogen, Indium, Photocatalysis, Photocatalyst, Transition element compounds, Water, Zinc oxide.

Abstract

In this study, we report the photocatalytic activity of cubic phase indium doped cadmium sulfide dispersed on zinc oxide having wurtzite structure (CdInS-ZnO). Enhanced photocatalytic activity for hydrogen generation is observed for CdInS-ZnO compared to CdS dispersed on ZnO. Photocatalytic activity of CdInS-ZnO is more than double when Pd was used as co-catalyst. Detailed characterization of the composite catalysts revealed that the dispersed phases of CdS/CdInS contain zinc dissolved in it. The particle size of CdS and indium doped CdS decreases significantly when dispersed on ZnO. Improved optical absorption is observed as a result of indium doping in CdS. Fluorescence lifetime studies indicated an increased lifetime for the charge carriers in the composites as compared to pure CdS. Surface analysis of Pd-CdIns-ZnO sample by XPS before and after photocatalysis work indicates a partial conversion of sulfide to sulfate species on the surface during photocatalytic process whereas no considerable change in the bulk occurs after the experiment as seen from the XRD pattern. The enhanced photocatalytic activity of CdInS-ZnO composite is attributed to a synergistic effect of improved visible light absorption and increased lifetime of the charge carriers.

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Pascal:13-0283319

Le document en format XML

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<author><name sortKey="Sasikala, Rajamma" uniqKey="Sasikala R">Rajamma Sasikala</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chemistry Division, Bhabha Atomic Research Centre</s1>
<s2>Trombay, Mumbai 400085</s2>
<s3>IND</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
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<country>Inde</country>
<wicri:noRegion>Trombay, Mumbai 400085</wicri:noRegion>
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</author>
<author><name sortKey="Gaikwad, Archana P" uniqKey="Gaikwad A">Archana P. Gaikwad</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chemistry Division, Bhabha Atomic Research Centre</s1>
<s2>Trombay, Mumbai 400085</s2>
<s3>IND</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
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<country>Inde</country>
<wicri:noRegion>Trombay, Mumbai 400085</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Sudarsan, Vasanthakumaran" uniqKey="Sudarsan V">Vasanthakumaran Sudarsan</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chemistry Division, Bhabha Atomic Research Centre</s1>
<s2>Trombay, Mumbai 400085</s2>
<s3>IND</s3>
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<country>Inde</country>
<wicri:noRegion>Trombay, Mumbai 400085</wicri:noRegion>
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<author><name sortKey="Gupta, Nidhi" uniqKey="Gupta N">Nidhi Gupta</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Technical Physics Division, Bhabha Atomic Research Centre</s1>
<s2>Trombay, Mumbai 400085</s2>
<s3>IND</s3>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Inde</country>
<wicri:noRegion>Trombay, Mumbai 400085</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Bharadwaj, Shyamala R" uniqKey="Bharadwaj S">Shyamala R. Bharadwaj</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chemistry Division, Bhabha Atomic Research Centre</s1>
<s2>Trombay, Mumbai 400085</s2>
<s3>IND</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
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<country>Inde</country>
<wicri:noRegion>Trombay, Mumbai 400085</wicri:noRegion>
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<publicationStmt><idno type="inist">13-0283319</idno>
<date when="2013">2013</date>
<idno type="stanalyst">PASCAL 13-0283319 INIST</idno>
<idno type="RBID">Pascal:13-0283319</idno>
<idno type="wicri:Area/Main/Corpus">000882</idno>
<idno type="wicri:Area/Main/Repository">000F74</idno>
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<seriesStmt><idno type="ISSN">0926-860X</idno>
<title level="j" type="abbreviated">Appl. catal., A Gen. : (Print)</title>
<title level="j" type="main">Applied catalysis. A, General : (Print)</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cadmium sulfide</term>
<term>Composite material</term>
<term>Heterogeneous catalysis</term>
<term>Hydrogen</term>
<term>Indium</term>
<term>Photocatalysis</term>
<term>Photocatalyst</term>
<term>Transition element compounds</term>
<term>Water</term>
<term>Zinc oxide</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Indium</term>
<term>Sulfure de cadmium</term>
<term>Oxyde de zinc</term>
<term>Photocatalyse</term>
<term>Hydrogène</term>
<term>Eau</term>
<term>Composé de métal de transition</term>
<term>Matériau composite</term>
<term>Catalyse hétérogène</term>
<term>ZnO</term>
<term>O Zn</term>
<term>CdS</term>
<term>Photocatalyseur</term>
</keywords>
<keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Hydrogène</term>
<term>Eau</term>
<term>Matériau composite</term>
</keywords>
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<front><div type="abstract" xml:lang="en">In this study, we report the photocatalytic activity of cubic phase indium doped cadmium sulfide dispersed on zinc oxide having wurtzite structure (CdInS-ZnO). Enhanced photocatalytic activity for hydrogen generation is observed for CdInS-ZnO compared to CdS dispersed on ZnO. Photocatalytic activity of CdInS-ZnO is more than double when Pd was used as co-catalyst. Detailed characterization of the composite catalysts revealed that the dispersed phases of CdS/CdInS contain zinc dissolved in it. The particle size of CdS and indium doped CdS decreases significantly when dispersed on ZnO. Improved optical absorption is observed as a result of indium doping in CdS. Fluorescence lifetime studies indicated an increased lifetime for the charge carriers in the composites as compared to pure CdS. Surface analysis of Pd-CdIns-ZnO sample by XPS before and after photocatalysis work indicates a partial conversion of sulfide to sulfate species on the surface during photocatalytic process whereas no considerable change in the bulk occurs after the experiment as seen from the XRD pattern. The enhanced photocatalytic activity of CdInS-ZnO composite is attributed to a synergistic effect of improved visible light absorption and increased lifetime of the charge carriers.</div>
</front>
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<fA11 i1="01" i2="1"><s1>SASIKALA (Rajamma)</s1>
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<fA11 i1="02" i2="1"><s1>GAIKWAD (Archana P.)</s1>
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<fA11 i1="03" i2="1"><s1>SUDARSAN (Vasanthakumaran)</s1>
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<fA11 i1="05" i2="1"><s1>BHARADWAJ (Shyamala R.)</s1>
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<fA14 i1="01"><s1>Chemistry Division, Bhabha Atomic Research Centre</s1>
<s2>Trombay, Mumbai 400085</s2>
<s3>IND</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
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<fA14 i1="02"><s1>Technical Physics Division, Bhabha Atomic Research Centre</s1>
<s2>Trombay, Mumbai 400085</s2>
<s3>IND</s3>
<sZ>4 aut.</sZ>
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<fA20><s1>149-155</s1>
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<s1>© 2013 INIST-CNRS. All rights reserved.</s1>
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<fA45><s0>36 ref.</s0>
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<fA60><s1>P</s1>
</fA60>
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<fC01 i1="01" l="ENG"><s0>In this study, we report the photocatalytic activity of cubic phase indium doped cadmium sulfide dispersed on zinc oxide having wurtzite structure (CdInS-ZnO). Enhanced photocatalytic activity for hydrogen generation is observed for CdInS-ZnO compared to CdS dispersed on ZnO. Photocatalytic activity of CdInS-ZnO is more than double when Pd was used as co-catalyst. Detailed characterization of the composite catalysts revealed that the dispersed phases of CdS/CdInS contain zinc dissolved in it. The particle size of CdS and indium doped CdS decreases significantly when dispersed on ZnO. Improved optical absorption is observed as a result of indium doping in CdS. Fluorescence lifetime studies indicated an increased lifetime for the charge carriers in the composites as compared to pure CdS. Surface analysis of Pd-CdIns-ZnO sample by XPS before and after photocatalysis work indicates a partial conversion of sulfide to sulfate species on the surface during photocatalytic process whereas no considerable change in the bulk occurs after the experiment as seen from the XRD pattern. The enhanced photocatalytic activity of CdInS-ZnO composite is attributed to a synergistic effect of improved visible light absorption and increased lifetime of the charge carriers.</s0>
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<s2>NC</s2>
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<s2>NC</s2>
<s5>01</s5>
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<s2>NC</s2>
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<s5>02</s5>
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<s5>02</s5>
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<s5>02</s5>
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<s5>03</s5>
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<s5>03</s5>
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<fC03 i1="03" i2="X" l="SPA"><s0>Zinc óxido</s0>
<s5>03</s5>
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<s5>04</s5>
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<s5>04</s5>
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<s5>04</s5>
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<s5>05</s5>
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<s2>NC</s2>
<s5>05</s5>
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<s5>06</s5>
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<s5>06</s5>
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<s5>07</s5>
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<s5>07</s5>
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<s5>08</s5>
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<s5>08</s5>
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<s5>08</s5>
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<s5>09</s5>
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<s5>09</s5>
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<s5>09</s5>
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<fC03 i1="10" i2="X" l="FRE"><s0>ZnO</s0>
<s4>INC</s4>
<s5>32</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>O Zn</s0>
<s4>INC</s4>
<s5>33</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>CdS</s0>
<s4>INC</s4>
<s5>34</s5>
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<fC03 i1="13" i2="X" l="FRE"><s0>Photocatalyseur</s0>
<s4>CD</s4>
<s5>96</s5>
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<s4>CD</s4>
<s5>96</s5>
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<s5>10</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Binary compound</s0>
<s5>10</s5>
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<s5>10</s5>
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<fN21><s1>266</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
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Cubic phase indium doped cadmium sulfide dispersed on zinc oxide: Enhanced photocatalytic activity for hydrogen generation from water

Cubic phase indium doped cadmium sulfide dispersed on zinc oxide: Enhanced photocatalytic activity for hydrogen generation from water

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri