2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol
A novel visible-light-activated photocatalyst consisting of porous graphitic C3N4 nanosheets and Ag3PO4 nanoparticles were synthesized through a tunable in situ deposition method. The morphology and microstructure of the C3N4/Ag 3PO4 nanocomposites were carefully characterized by scanning electron m...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Kluwer Academic Publishers
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/45749 |
| _version_ | 1848757371465105408 |
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| author | Ren, Y. Zhao, Q. Li, Xin Yong Xiong, W. Tade, Moses Liu, Lihong |
| author_facet | Ren, Y. Zhao, Q. Li, Xin Yong Xiong, W. Tade, Moses Liu, Lihong |
| author_sort | Ren, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A novel visible-light-activated photocatalyst consisting of porous graphitic C3N4 nanosheets and Ag3PO4 nanoparticles were synthesized through a tunable in situ deposition method. The morphology and microstructure of the C3N4/Ag 3PO4 nanocomposites were carefully characterized by scanning electron microscope, TEM, X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDX), X-ray photoelectron spectra, and so on. The porous C 3N4/Ag3PO4 nanocomposites were featured by the typical platelet-like morphology, with an average crystallite size of about 39 nm. The coexistence of porous graphitic C3N 4 nanosheets and Ag3PO4 nanoparticles is confirmed via the XRD and EDX results. Owing to its narrower band gap of Ag 3PO4, the nanocomposites displayed a significant redshift of UV-Vis spectral absorption edge together with expanded light absorption in comparison with g-C3N4 nanosheets. The photocatalytic activity of the prepared C3N4/Ag3PO4 nanocomposites is demonstrated by the photodegradation of 4-chlorophenol (4-CP). The C3N4/Ag3PO4 nanocomposites displayed higher photocatalytic activity than pure C 3N4 or Ag3PO4, which could be attributed to the interfacial effect of the nanocomposites in inhibiting the unfavorable recombination of photogenerated electrons and holes. Electron spin resonance spin-trap study implied that the generation of hydroxyl radicals plays the key role in the photodegradation of 4-CP by the C3N 4/Ag3PO4 nanocomposites under visible light irradiation. |
| first_indexed | 2025-11-14T09:27:02Z |
| format | Journal Article |
| id | curtin-20.500.11937-45749 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:27:02Z |
| publishDate | 2014 |
| publisher | Kluwer Academic Publishers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-457492017-09-13T14:26:11Z 2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol Ren, Y. Zhao, Q. Li, Xin Yong Xiong, W. Tade, Moses Liu, Lihong A novel visible-light-activated photocatalyst consisting of porous graphitic C3N4 nanosheets and Ag3PO4 nanoparticles were synthesized through a tunable in situ deposition method. The morphology and microstructure of the C3N4/Ag 3PO4 nanocomposites were carefully characterized by scanning electron microscope, TEM, X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDX), X-ray photoelectron spectra, and so on. The porous C 3N4/Ag3PO4 nanocomposites were featured by the typical platelet-like morphology, with an average crystallite size of about 39 nm. The coexistence of porous graphitic C3N 4 nanosheets and Ag3PO4 nanoparticles is confirmed via the XRD and EDX results. Owing to its narrower band gap of Ag 3PO4, the nanocomposites displayed a significant redshift of UV-Vis spectral absorption edge together with expanded light absorption in comparison with g-C3N4 nanosheets. The photocatalytic activity of the prepared C3N4/Ag3PO4 nanocomposites is demonstrated by the photodegradation of 4-chlorophenol (4-CP). The C3N4/Ag3PO4 nanocomposites displayed higher photocatalytic activity than pure C 3N4 or Ag3PO4, which could be attributed to the interfacial effect of the nanocomposites in inhibiting the unfavorable recombination of photogenerated electrons and holes. Electron spin resonance spin-trap study implied that the generation of hydroxyl radicals plays the key role in the photodegradation of 4-CP by the C3N 4/Ag3PO4 nanocomposites under visible light irradiation. 2014 Journal Article http://hdl.handle.net/20.500.11937/45749 10.1007/s11051-014-2532-x Kluwer Academic Publishers restricted |
| spellingShingle | Ren, Y. Zhao, Q. Li, Xin Yong Xiong, W. Tade, Moses Liu, Lihong 2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol |
| title | 2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol |
| title_full | 2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol |
| title_fullStr | 2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol |
| title_full_unstemmed | 2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol |
| title_short | 2D porous graphitic C3N4 nanosheets/Ag 3PO4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol |
| title_sort | 2d porous graphitic c3n4 nanosheets/ag 3po4 nanocomposites for enhanced visible-light photocatalytic degradation of 4-chlorophenol |
| url | http://hdl.handle.net/20.500.11937/45749 |