Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis
Recently, graphitic carbon nitride (GCN) has been extensively employed as a metal-free, visible-light-responsive photocatalyst. The strong recombination rate of photo-induced charges and small surface area limit its wide applications. In this study, monodisperse carbon nanospheres (CS) with a unifor...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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Elsevier BV
2017
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| Online Access: | http://purl.org/au-research/grants/arc/DP150103026 http://hdl.handle.net/20.500.11937/32067 |
| _version_ | 1848753559353425920 |
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| author | Liu, S. Ke, J. Sun, Hongqi Liu, Jian Tade, Moses Wang, Shaobin |
| author_facet | Liu, S. Ke, J. Sun, Hongqi Liu, Jian Tade, Moses Wang, Shaobin |
| author_sort | Liu, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Recently, graphitic carbon nitride (GCN) has been extensively employed as a metal-free, visible-light-responsive photocatalyst. The strong recombination rate of photo-induced charges and small surface area limit its wide applications. In this study, monodisperse carbon nanospheres (CS) with a uniform size were synthesized from resorcinol-formaldehyde resin using different surfactants and then loaded onto GCN via a hydrothermal treatment. It was found that the size of CS influenced the properties and photocatalytic performances of the CS/GCN hybrids. All the CS/GCN catalysts exhibited higher photocatalytic activities in degradation of water contaminants, antibiotic sulfachloropyridazine and methylene blue, under visible light irradiations. Photoluminescence spectra and photocurrent analysis indicated that hybridization with the carbon spheres at 200–500 nm will significantly reduce the electrocarrier recombination of carbon nitride while increase the photocurrent intensity, resulting in much better photocatalysis. |
| first_indexed | 2025-11-14T08:26:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-32067 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:26:26Z |
| publishDate | 2017 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-320672022-10-12T07:43:24Z Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis Liu, S. Ke, J. Sun, Hongqi Liu, Jian Tade, Moses Wang, Shaobin Recently, graphitic carbon nitride (GCN) has been extensively employed as a metal-free, visible-light-responsive photocatalyst. The strong recombination rate of photo-induced charges and small surface area limit its wide applications. In this study, monodisperse carbon nanospheres (CS) with a uniform size were synthesized from resorcinol-formaldehyde resin using different surfactants and then loaded onto GCN via a hydrothermal treatment. It was found that the size of CS influenced the properties and photocatalytic performances of the CS/GCN hybrids. All the CS/GCN catalysts exhibited higher photocatalytic activities in degradation of water contaminants, antibiotic sulfachloropyridazine and methylene blue, under visible light irradiations. Photoluminescence spectra and photocurrent analysis indicated that hybridization with the carbon spheres at 200–500 nm will significantly reduce the electrocarrier recombination of carbon nitride while increase the photocurrent intensity, resulting in much better photocatalysis. 2017 Journal Article http://hdl.handle.net/20.500.11937/32067 10.1016/j.apcatb.2016.11.048 http://purl.org/au-research/grants/arc/DP150103026 Elsevier BV restricted |
| spellingShingle | Liu, S. Ke, J. Sun, Hongqi Liu, Jian Tade, Moses Wang, Shaobin Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis |
| title | Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis |
| title_full | Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis |
| title_fullStr | Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis |
| title_full_unstemmed | Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis |
| title_short | Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis |
| title_sort | size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis |
| url | http://purl.org/au-research/grants/arc/DP150103026 http://hdl.handle.net/20.500.11937/32067 |