Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution
Utilizing two or more semiconductor materials with distinct geometric and electronic energy arrangements at the nanoscale to construct heterostructures is an important means for developing high-performance catalysts for photocatalytic hydrogen evolution. In this study, ZnIn<sub>2</sub>S&...
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MDPI AG
2025-03-01
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| author | Ruiqin Sun Yue Liu Jiamei Yang Tuoya Wuren Haochen Duan Zhibing Tan Shiyong Yu |
| author_facet | Ruiqin Sun Yue Liu Jiamei Yang Tuoya Wuren Haochen Duan Zhibing Tan Shiyong Yu |
| author_sort | Ruiqin Sun |
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| description | Utilizing two or more semiconductor materials with distinct geometric and electronic energy arrangements at the nanoscale to construct heterostructures is an important means for developing high-performance catalysts for photocatalytic hydrogen evolution. In this study, ZnIn<sub>2</sub>S<sub>4</sub> serves as the primary catalyst carrier, while Mo-W<sub>18</sub>O<sub>49</sub> functions as the cocatalyst supported on the surface of ZnIn<sub>2</sub>S<sub>4</sub>. A series of ZnIn<sub>2</sub>S<sub>4</sub>/Mo-W<sub>18</sub>O<sub>49</sub> heterojunction composite materials were synthesized through a straightforward hydrothermal method. The ZnIn<sub>2</sub>S<sub>4</sub>/Mo-W<sub>18</sub>O<sub>49</sub> photocatalyst demonstrates exceptional photocatalytic hydrogen evolution activity. Notably, with a Mo-W<sub>18</sub>O<sub>49</sub> loading of 10%, the photocatalyst achieves optimal hydrogen evolution, yielding 2592.8 μmol g<sup>−1</sup>, which is 31 times greater than that of pure ZnIn<sub>2</sub>S<sub>4</sub>. Further characterized results of the samples showed that loading Mo-W<sub>18</sub>O<sub>49</sub> with an appropriate mass ratio on ZnIn<sub>2</sub>S<sub>4</sub> can increase the electron transfer rate, which facilitates reducing the recombination probability of photo-generated electrons and holes, thus improving hydrogen evolution efficiency. |
| format | Article |
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| language | English |
| publishDate | 2025-03-01 |
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| series | Molecules |
| spelling | doaj-art-2ee0c57887f54ced9b7a433c8d7079212025-08-20T02:09:17ZengMDPI AGMolecules1420-30492025-03-01307156310.3390/molecules30071563Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen EvolutionRuiqin Sun0Yue Liu1Jiamei Yang2Tuoya Wuren3Haochen Duan4Zhibing Tan5Shiyong Yu6College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaChina FAW Motor Corporation Limited Kinetic Energy Branch, Changchun 130011, ChinaCollege of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaCollege of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaCollege of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaCollege of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaCollege of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, ChinaUtilizing two or more semiconductor materials with distinct geometric and electronic energy arrangements at the nanoscale to construct heterostructures is an important means for developing high-performance catalysts for photocatalytic hydrogen evolution. In this study, ZnIn<sub>2</sub>S<sub>4</sub> serves as the primary catalyst carrier, while Mo-W<sub>18</sub>O<sub>49</sub> functions as the cocatalyst supported on the surface of ZnIn<sub>2</sub>S<sub>4</sub>. A series of ZnIn<sub>2</sub>S<sub>4</sub>/Mo-W<sub>18</sub>O<sub>49</sub> heterojunction composite materials were synthesized through a straightforward hydrothermal method. The ZnIn<sub>2</sub>S<sub>4</sub>/Mo-W<sub>18</sub>O<sub>49</sub> photocatalyst demonstrates exceptional photocatalytic hydrogen evolution activity. Notably, with a Mo-W<sub>18</sub>O<sub>49</sub> loading of 10%, the photocatalyst achieves optimal hydrogen evolution, yielding 2592.8 μmol g<sup>−1</sup>, which is 31 times greater than that of pure ZnIn<sub>2</sub>S<sub>4</sub>. Further characterized results of the samples showed that loading Mo-W<sub>18</sub>O<sub>49</sub> with an appropriate mass ratio on ZnIn<sub>2</sub>S<sub>4</sub> can increase the electron transfer rate, which facilitates reducing the recombination probability of photo-generated electrons and holes, thus improving hydrogen evolution efficiency.https://www.mdpi.com/1420-3049/30/7/1563visible lightphotocatalyticMo-W<sub>18</sub>O<sub>49</sub>Znln<sub>2</sub>S<sub>4</sub> |
| spellingShingle | Ruiqin Sun Yue Liu Jiamei Yang Tuoya Wuren Haochen Duan Zhibing Tan Shiyong Yu Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution Molecules visible light photocatalytic Mo-W<sub>18</sub>O<sub>49</sub> Znln<sub>2</sub>S<sub>4</sub> |
| title | Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution |
| title_full | Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution |
| title_fullStr | Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution |
| title_full_unstemmed | Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution |
| title_short | Mo-W<sub>18</sub>O<sub>49</sub>/ZnIn<sub>2</sub>S<sub>4</sub> Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution |
| title_sort | mo w sub 18 sub o sub 49 sub znin sub 2 sub s sub 4 sub composites synthesized by metal doping for photocatalytic hydrogen evolution |
| topic | visible light photocatalytic Mo-W<sub>18</sub>O<sub>49</sub> Znln<sub>2</sub>S<sub>4</sub> |
| url | https://www.mdpi.com/1420-3049/30/7/1563 |
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