Flower-like MoS2 on graphitic carbon nitride for enhanced photocatalytic and electrochemical hydrogen evolutions
dc.contributor.author | Liu, Y. | |
dc.contributor.author | Xu, X. | |
dc.contributor.author | Zhang, J. | |
dc.contributor.author | Zhang, H. | |
dc.contributor.author | Tian, W. | |
dc.contributor.author | Li, X. | |
dc.contributor.author | Tade, Moses | |
dc.contributor.author | Sun, Hongqi | |
dc.contributor.author | Wang, Shaobin | |
dc.date.accessioned | 2018-12-13T09:14:17Z | |
dc.date.available | 2018-12-13T09:14:17Z | |
dc.date.created | 2018-12-12T02:46:37Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Liu, Y. and Xu, X. and Zhang, J. and Zhang, H. and Tian, W. and Li, X. and Tade, M. et al. 2018. Flower-like MoS2 on graphitic carbon nitride for enhanced photocatalytic and electrochemical hydrogen evolutions. Applied Catalysis B: Environmental. 239: pp. 334-344. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/72745 | |
dc.identifier.doi | 10.1016/j.apcatb.2018.08.028 | |
dc.description.abstract |
Design of highly efficient catalysts has already been a challenge in the exploration of renewable energies based on nanotechnologies. Herein, a feasible strategy of three-dimensional (3D)/two-dimensional (2D) nanojunctions was employed to achieve a prominently enhanced activity in both solar hydrogen evolution and electrochemical hydrogen generation from water splitting. Flower-like MoS2nanoparticles with thin-layers were fabricated using a one-pot hydrothermal process and were further attached to g-C3N4nanosheets via their (002) crystal planes to form an intimate face-to-face contact. The hybrid catalysts exhibited a red-shift to the visible light region with an enhanced absorption capacity. At the optimal loading of 0.5 wt% MoS2, MoS2/g-C3N4exhibited the highest photocatalytic H2evolution rate of 867.6 µmol h-1g-1under simulated sunlight irradiations, which is 2.8 times as high as that of pure g-C3N4. Furthermore, the average photocatalytic H2evolution rate was elevated to ca. 5 times as high as that of pure g-C3N4under visible light irradiations. The synergistic effect responsible for the enhanced HER (hydrogen evolution reaction) performance might be originated from the intimate interface between the light-harvesting g-C3N4and MoS2as the active sites with the decreased overpotential, lowered charge-transfer resistance and increased electrical conductivity, leading to a more efficient charge separation and a higher reductive potential. In addition, the lower overpotential and smaller Tafel slope on 0.5 wt% MoS2/g-C3N4lead to the enhancement of electrochemical HER performance compared to pure g-C3N4. This work provides a feasible protocol for rational design of highly efficient HER electrocatalysts and photocatalysts towards future energy innovation. | |
dc.publisher | Elsevier BV | |
dc.relation.sponsoredby | http://purl.org/au-research/grants/arc/DP150103026 | |
dc.title | Flower-like MoS2 on graphitic carbon nitride for enhanced photocatalytic and electrochemical hydrogen evolutions | |
dc.type | Journal Article | |
dcterms.source.volume | 239 | |
dcterms.source.startPage | 334 | |
dcterms.source.endPage | 344 | |
dcterms.source.issn | 0926-3373 | |
dcterms.source.title | Applied Catalysis B: Environmental | |
curtin.accessStatus | Fulltext not available | |
curtin.faculty | Faculty of Science and Engineering |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |