S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradation
Abstract This project presents the fabrication of an efficient heterojunction photocatalyst through combining 3D MoS2 nanoflowers with 2D MoO3 nanobelts, both having highly prominent photocatalytic features. The prepared MoS2@MoO3 heterojunction exhibited superior photocatalytic activity towards the...
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Nature Portfolio
2025-03-01
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| Online Access: | https://doi.org/10.1038/s41598-025-94813-5 |
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| author | Mohammad Mahdi Rezaei Mir Saeed Seyed Dorraji Seyyedeh Fatemeh Hosseini Mohammad Hossein Rasoulifard |
| author_facet | Mohammad Mahdi Rezaei Mir Saeed Seyed Dorraji Seyyedeh Fatemeh Hosseini Mohammad Hossein Rasoulifard |
| author_sort | Mohammad Mahdi Rezaei |
| collection | DOAJ |
| description | Abstract This project presents the fabrication of an efficient heterojunction photocatalyst through combining 3D MoS2 nanoflowers with 2D MoO3 nanobelts, both having highly prominent photocatalytic features. The prepared MoS2@MoO3 heterojunction exhibited superior photocatalytic activity towards the degradation of Azo dye under visible light irradiation and attained about 96% degradation within four hours. Such a high photocatalytic activity might be associated with the high BET surface area, and especially with the S-scheme mechanism that occurs between p-type MoS2 and p-type MoO3, probably due to the fact that this offers effectively separated and transitioned photogenerated electron-hole pairs, while the recombination rate is reduced. The addition of MoO3 increased the bandgap of MoS2 and consequently enhanced the photoinduced electron transfer rate and prolonged the lifetime of the charge carriers. In a word, the generation of hole and •O2 – radicals in the whole process of degradation, which have been proved by scavenger tests and Mott-Schottky analysis, proved the MoS2@MoO3 p-p heterojunction to be photocatalytically active. This work underlines the successful application of bandgap and morphological engineering in the design of photocatalysts and points out the 3D/2D MoS2@MoO3 heterojunction structure as the basis for further development of transition metal chalcogenide (TMC)/transition metal oxide (TMO) photocatalysts with a view to tackling important environmental problems by means of sustainable technologies. |
| format | Article |
| id | doaj-art-429e63beff434b1b9294be4ddd69028d |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-429e63beff434b1b9294be4ddd69028d2025-08-20T02:49:32ZengNature PortfolioScientific Reports2045-23222025-03-0115111210.1038/s41598-025-94813-5S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradationMohammad Mahdi Rezaei0Mir Saeed Seyed Dorraji1Seyyedeh Fatemeh Hosseini2Mohammad Hossein Rasoulifard3Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of ZanjanApplied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of ZanjanApplied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of ZanjanApplied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of ZanjanAbstract This project presents the fabrication of an efficient heterojunction photocatalyst through combining 3D MoS2 nanoflowers with 2D MoO3 nanobelts, both having highly prominent photocatalytic features. The prepared MoS2@MoO3 heterojunction exhibited superior photocatalytic activity towards the degradation of Azo dye under visible light irradiation and attained about 96% degradation within four hours. Such a high photocatalytic activity might be associated with the high BET surface area, and especially with the S-scheme mechanism that occurs between p-type MoS2 and p-type MoO3, probably due to the fact that this offers effectively separated and transitioned photogenerated electron-hole pairs, while the recombination rate is reduced. The addition of MoO3 increased the bandgap of MoS2 and consequently enhanced the photoinduced electron transfer rate and prolonged the lifetime of the charge carriers. In a word, the generation of hole and •O2 – radicals in the whole process of degradation, which have been proved by scavenger tests and Mott-Schottky analysis, proved the MoS2@MoO3 p-p heterojunction to be photocatalytically active. This work underlines the successful application of bandgap and morphological engineering in the design of photocatalysts and points out the 3D/2D MoS2@MoO3 heterojunction structure as the basis for further development of transition metal chalcogenide (TMC)/transition metal oxide (TMO) photocatalysts with a view to tackling important environmental problems by means of sustainable technologies.https://doi.org/10.1038/s41598-025-94813-5MoS2@MoO3S-scheme heterojunctionPhotocatalystAzo dyes |
| spellingShingle | Mohammad Mahdi Rezaei Mir Saeed Seyed Dorraji Seyyedeh Fatemeh Hosseini Mohammad Hossein Rasoulifard S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradation Scientific Reports MoS2@MoO3 S-scheme heterojunction Photocatalyst Azo dyes |
| title | S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradation |
| title_full | S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradation |
| title_fullStr | S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradation |
| title_full_unstemmed | S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradation |
| title_short | S-scheme heterojunction of MoO3 nanobelts and MoS2 nanoflowers for photocatalytic degradation |
| title_sort | s scheme heterojunction of moo3 nanobelts and mos2 nanoflowers for photocatalytic degradation |
| topic | MoS2@MoO3 S-scheme heterojunction Photocatalyst Azo dyes |
| url | https://doi.org/10.1038/s41598-025-94813-5 |
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