WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation
In this study, a novel tungsten disulfide diselenide (WSSe) nanocomposite by a facile hydrothermal process with great capable photocatalytic efficiency for hydrogen evolution from water and organic compound removal was discussed. The WSSe nanocomposites form heterojunctions in order to inhibit the q...
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| author | Tsung-Mo Tien Yu-Jen Chung Chen-Tang Huang Edward L. Chen |
| author_facet | Tsung-Mo Tien Yu-Jen Chung Chen-Tang Huang Edward L. Chen |
| author_sort | Tsung-Mo Tien |
| collection | DOAJ |
| description | In this study, a novel tungsten disulfide diselenide (WSSe) nanocomposite by a facile hydrothermal process with great capable photocatalytic efficiency for hydrogen evolution from water and organic compound removal was discussed. The WSSe nanocomposites form heterojunctions in order to inhibit the quick recombination rate of photo-induced electrons and holes. This is considered to be a useful method in order to enhance the capability of photocatalytic hydrogen production. The hydrogen production rate of the WSSe nanocomposites approaches 3647.4 μmol/g/h, which is 12 and 11 folds the rates of the bare WS<sub>2</sub> and WSe<sub>2</sub>, respectively. Moreover, the excellent photocatalytic performance for Methylene blue (MB) removal (88%) was 2.5 and 1.8 times higher than those of the bare WS<sub>2</sub> and WSe<sub>2</sub>, respectively. The great photocatalytic efficiency was owing to the capable electrons and holes separation of WSSe and the construction of the heterostructure, which possessed vigorous photocatalytic oxidation and reduction potentials. The novel one-dimensional structure of the WSSe heterojunction shortens the transport pathway of the photo-induced electrons and holes. It possesses the great capable photocatalytic efficiency of the hydrogen production and organic dye removal. This study offers an insight into the route of interfacial migration and separation for induced charge carriers in order to generate clean hydrogen energy and to solve the issue of environmental pollution. |
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| id | doaj.art-0e0ddcfb1df04e7e85a8699c0c91ef1f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T04:09:20Z |
| publishDate | 2022-08-01 |
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| spelling | doaj.art-0e0ddcfb1df04e7e85a8699c0c91ef1f2023-12-03T14:01:40ZengMDPI AGMaterials1996-19442022-08-011516561610.3390/ma15165616WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light IrradiationTsung-Mo Tien0Yu-Jen Chung1Chen-Tang Huang2Edward L. Chen3Coastal Water and Environment Center, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, TaiwanDepartment of Marine Science, Republic of China Naval Academy, Kaohsiung 81300, TaiwanCoastal Water and Environment Center, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, TaiwanCoastal Water and Environment Center, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, TaiwanIn this study, a novel tungsten disulfide diselenide (WSSe) nanocomposite by a facile hydrothermal process with great capable photocatalytic efficiency for hydrogen evolution from water and organic compound removal was discussed. The WSSe nanocomposites form heterojunctions in order to inhibit the quick recombination rate of photo-induced electrons and holes. This is considered to be a useful method in order to enhance the capability of photocatalytic hydrogen production. The hydrogen production rate of the WSSe nanocomposites approaches 3647.4 μmol/g/h, which is 12 and 11 folds the rates of the bare WS<sub>2</sub> and WSe<sub>2</sub>, respectively. Moreover, the excellent photocatalytic performance for Methylene blue (MB) removal (88%) was 2.5 and 1.8 times higher than those of the bare WS<sub>2</sub> and WSe<sub>2</sub>, respectively. The great photocatalytic efficiency was owing to the capable electrons and holes separation of WSSe and the construction of the heterostructure, which possessed vigorous photocatalytic oxidation and reduction potentials. The novel one-dimensional structure of the WSSe heterojunction shortens the transport pathway of the photo-induced electrons and holes. It possesses the great capable photocatalytic efficiency of the hydrogen production and organic dye removal. This study offers an insight into the route of interfacial migration and separation for induced charge carriers in order to generate clean hydrogen energy and to solve the issue of environmental pollution.https://www.mdpi.com/1996-1944/15/16/5616nanocompositehydrogen productionphotocatalyticMethylene blue removal |
| spellingShingle | Tsung-Mo Tien Yu-Jen Chung Chen-Tang Huang Edward L. Chen WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation Materials nanocomposite hydrogen production photocatalytic Methylene blue removal |
| title | WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation |
| title_full | WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation |
| title_fullStr | WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation |
| title_full_unstemmed | WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation |
| title_short | WSSe Nanocomposites for Enhanced Photocatalytic Hydrogen Evolution and Methylene Blue Removal under Visible-Light Irradiation |
| title_sort | wsse nanocomposites for enhanced photocatalytic hydrogen evolution and methylene blue removal under visible light irradiation |
| topic | nanocomposite hydrogen production photocatalytic Methylene blue removal |
| url | https://www.mdpi.com/1996-1944/15/16/5616 |
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