Zn2x(CuIn)1-xS2 photocatalysts synthesis by a hydrothermal process using H4EDTA as complexing agent
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Abstract
The study of the Zn2x(CuIn)1-xS2 (0 ≤ x ≤ 1) solid solutions formation by hydrothermal synthesis using ethylenediaminetetraacetic acid (H4EDTA) as a complexant and surfactant agent is reported for the first time. Different synthesis parameters were varied: the H4EDTA concentration, the initial pH value, the Tu concentration, the duration and temperature of autoclaving process. The as obtained powders were characterized by X-ray powder diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and UV/vis/NIR diffuse reflection spectroscopy (DRS). The XRD and EDX results show that, with a careful adjustment of the reaction conditions, especially of the H4EDTA concentration and initial pH value of the precursor solution, a mixture of solid solutions with sphalerite type structure can be obtained, which transforms into a single phase solid solution after heat treatment. The particles, as revealed by SEM investigations, have nanoporous hexagonal microplates morphology, about 1 μm thick and several microns in diameter. The Cu0.159In0.111Zn1.778S2 photocatalyst obtained by this method presents photocatalytic activity for hydrogen evolution from aqueous solutions containing S2 ions as sacrificial agent, even without cocatalyst.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Zn<sub>2x</sub>(CuIn)<sub>1-x</sub>S<sub>2</sub> photocatalysts synthesis by a hydrothermal process using H<sub>4</sub>EDTA as complexing agent</title><author><name sortKey="Banica, Radu" uniqKey="Banica R">Radu Banica</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>National Institute for Research and Development in Electrochemistry and Condensed Matter, Str. Plautius Andronescu 1</s1><s2>300224 Timisoara</s2><s3>ROU</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Roumanie</country><wicri:noRegion>300224 Timisoara</wicri:noRegion></affiliation></author><author><name sortKey="Nyari, Terezia" uniqKey="Nyari T">Terezia Nyari</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>National Institute for Research and Development in Electrochemistry and Condensed Matter, Str. Plautius Andronescu 1</s1><s2>300224 Timisoara</s2><s3>ROU</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Roumanie</country><wicri:noRegion>300224 Timisoara</wicri:noRegion></affiliation></author><author><name sortKey="Sasca, Viorel" uniqKey="Sasca V">Viorel Sasca</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Institute of Chemistry Timisoara of the Romanian Academy, Bd. Mihai Viteazul 24</s1><s2>300223 Timisoara</s2><s3>ROU</s3><sZ>3 aut.</sZ></inist:fA14><country>Roumanie</country><wicri:noRegion>300223 Timisoara</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">13-0014700</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 13-0014700 INIST</idno><idno type="RBID">Pascal:13-0014700</idno><idno type="wicri:Area/Main/Corpus">001479</idno><idno type="wicri:Area/Main/Repository">001254</idno></publicationStmt><seriesStmt><idno type="ISSN">0360-3199</idno><title level="j" type="abbreviated">Int. j. hydrogen energy</title><title level="j" type="main">International journal of hydrogen energy</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Catalyst</term><term>Catalyst activity</term><term>Hydrogen production</term><term>Hydrothermal synthesis</term><term>Photocatalysis</term><term>Solar radiation</term><term>Solid solution</term><term>Visible radiation</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Production hydrogène</term><term>Photocatalyse</term><term>Catalyseur</term><term>Rayonnement visible</term><term>Rayonnement solaire</term><term>Solution solide</term><term>Activité catalytique</term><term>Synthèse hydrothermale</term><term>Sulfure de cuivre indium et zinc</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The study of the Zn<sub>2x</sub>(CuIn)<sub>1-x</sub>S<sub>2</sub> (0 ≤ x ≤ 1) solid solutions formation by hydrothermal synthesis using ethylenediaminetetraacetic acid (H<sub>4</sub>EDTA) as a complexant and surfactant agent is reported for the first time. Different synthesis parameters were varied: the H<sub>4</sub>EDTA concentration, the initial pH value, the Tu concentration, the duration and temperature of autoclaving process. The as obtained powders were characterized by X-ray powder diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and UV/vis/NIR diffuse reflection spectroscopy (DRS). The XRD and EDX results show that, with a careful adjustment of the reaction conditions, especially of the H<sub>4</sub>EDTA concentration and initial pH value of the precursor solution, a mixture of solid solutions with sphalerite type structure can be obtained, which transforms into a single phase solid solution after heat treatment. The particles, as revealed by SEM investigations, have nanoporous hexagonal microplates morphology, about 1 μm thick and several microns in diameter. The Cu<sub>0.159</sub>In<sub>0.111</sub>Zn<sub>1.778</sub>S<sub>2</sub> photocatalyst obtained by this method presents photocatalytic activity for hydrogen evolution from aqueous solutions containing S<sup>2</sup> ions as sacrificial agent, even without cocatalyst.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0360-3199</s0></fA01><fA02 i1="01"><s0>IJHEDX</s0></fA02><fA03 i2="1"><s0>Int. j. hydrogen energy</s0></fA03><fA05><s2>37</s2></fA05><fA06><s2>21</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Zn<sub>2x</sub>(CuIn)<sub>1-x</sub>S<sub>2</sub> photocatalysts synthesis by a hydrothermal process using H<sub>4</sub>EDTA as complexing agent</s1></fA08><fA11 i1="01" i2="1"><s1>BANICA (Radu)</s1></fA11><fA11 i1="02" i2="1"><s1>NYARI (Terezia)</s1></fA11><fA11 i1="03" i2="1"><s1>SASCA (Viorel)</s1></fA11><fA14 i1="01"><s1>National Institute for Research and Development in Electrochemistry and Condensed Matter, Str. Plautius Andronescu 1</s1><s2>300224 Timisoara</s2><s3>ROU</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Institute of Chemistry Timisoara of the Romanian Academy, Bd. Mihai Viteazul 24</s1><s2>300223 Timisoara</s2><s3>ROU</s3><sZ>3 aut.</sZ></fA14><fA20><s1>16489-16497</s1></fA20><fA21><s1>2012</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>17522</s2><s5>354000505362270690</s5></fA43><fA44><s0>0000</s0><s1>© 2013 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>28 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>13-0014700</s0></fA47><fA60><s1>P</s1><s2>C</s2></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>International journal of hydrogen energy</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>The study of the Zn<sub>2x</sub>(CuIn)<sub>1-x</sub>S<sub>2</sub> (0 ≤ x ≤ 1) solid solutions formation by hydrothermal synthesis using ethylenediaminetetraacetic acid (H<sub>4</sub>EDTA) as a complexant and surfactant agent is reported for the first time. Different synthesis parameters were varied: the H<sub>4</sub>EDTA concentration, the initial pH value, the Tu concentration, the duration and temperature of autoclaving process. The as obtained powders were characterized by X-ray powder diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and UV/vis/NIR diffuse reflection spectroscopy (DRS). The XRD and EDX results show that, with a careful adjustment of the reaction conditions, especially of the H<sub>4</sub>EDTA concentration and initial pH value of the precursor solution, a mixture of solid solutions with sphalerite type structure can be obtained, which transforms into a single phase solid solution after heat treatment. The particles, as revealed by SEM investigations, have nanoporous hexagonal microplates morphology, about 1 μm thick and several microns in diameter. The Cu<sub>0.159</sub>In<sub>0.111</sub>Zn<sub>1.778</sub>S<sub>2</sub> photocatalyst obtained by this method presents photocatalytic activity for hydrogen evolution from aqueous solutions containing S<sup>2</sup> ions as sacrificial agent, even without cocatalyst.</s0></fC01><fC02 i1="01" i2="X"><s0>001D06B06B</s0></fC02><fC02 i1="02" i2="X"><s0>001C01A03A</s0></fC02><fC02 i1="03" i2="X"><s0>230</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>Production hydrogène</s0><s5>01</s5></fC03><fC03 i1="01" i2="3" l="ENG"><s0>Hydrogen production</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Photocatalyse</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Photocatalysis</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Fotocatálisis</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Catalyseur</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Catalyst</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Catalizador</s0><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Rayonnement visible</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Visible radiation</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Radiación visible</s0><s5>04</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Rayonnement solaire</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Solar radiation</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Radiación solar</s0><s5>05</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Solution solide</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Solid solution</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Solución sólida</s0><s5>06</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Activité catalytique</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Catalyst activity</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Actividad catalítica</s0><s5>07</s5></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Synthèse hydrothermale</s0><s5>08</s5></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Hydrothermal synthesis</s0><s5>08</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Sulfure de cuivre indium et zinc</s0><s4>INC</s4><s5>76</s5></fC03><fN21><s1>007</s1></fN21></pA><pR><fA30 i1="01" i2="1" l="ENG"><s1>International Conference on Hydrogen Production (ICHP-2011)</s1><s2>3</s2><s3>Thessaloniki GRC</s3><s4>2011-06-19</s4></fA30></pR></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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