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Highly Durable N-Doped Graphene/CdS Nanocomposites with Enhanced Photocatalytic Hydrogen Evolution from Water under Visible Light Irradiation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Dong-Hong Huang, Yu-Xi |
| Copyright Year | 2011 |
| Abstract | A series of N-doped graphene (N-graphene)/CdS nanocomposites were synthesized by calcination and characterized by X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy, Raman spectroscopy, N2 adsorption analysis, ultraviolet–visible diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. The photocatalytic activity of as-prepared N-graphene/CdS for hydrogen production from water under visible light irradiation at λ ≥ 420 nm was investigated. The results show that N-graphene/CdS nanocomposites have a higher photocatalytic activity than pure CdS. Transient photocurrents measured with a photoelectrochemical test device show that the photocurrent of the N-graphene/CdS sample is much increased as compared to the sole CdS. This enhanced photoresponse indicates that the photoinduced electrons in the CdS prefer separately transferring to the N-doped graphene. As a consequence, the radiative recombination of the electron–hole pairs is hampered and the... |
| Starting Page | 11466 |
| Ending Page | 11473 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/jp2023617 |
| Volume Number | 115 |
| Alternate Webpage(s) | http://www.dstuns.iitm.ac.in/grouppresentations/2011/Highly%20Durable.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/jp2023617 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
