Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method
SnO2 quantum dots (QDs) were successfully synthesized via a microwave-assisted reaction of a SnO2 precursor in an aqueous solution using a microwave system. The morphology, structure and photocatalytic performance in the degradation of methylene blue (MB) were characterized by scanning electron micr...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/101893 http://hdl.handle.net/10220/16924 |
| _version_ | 1811692835960782848 |
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| author | Liu, Xinjuan Pan, Likun Chen, Taiqiang Li, Jinliang Yu, Kai Sun, Zhuo Sun, Changqing |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Liu, Xinjuan Pan, Likun Chen, Taiqiang Li, Jinliang Yu, Kai Sun, Zhuo Sun, Changqing |
| author_sort | Liu, Xinjuan |
| collection | NTU |
| description | SnO2 quantum dots (QDs) were successfully synthesized via a microwave-assisted reaction of a SnO2 precursor in an aqueous solution using a microwave system. The morphology, structure and photocatalytic performance in the degradation of methylene blue (MB) were characterized by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction spectroscopy, UV-vis absorption/reflectance spectroscopy and electrochemical impedance spectroscopy, respectively. The results show that the SnO2 QDs synthesized at a pH value of 5 exhibit an optimal photocatalytic performance with a MB degradation rate of 90% at 240 min under visible light irradiation due to their easier adsorption of pollutants, higher visible light absorption and lower electron–hole pair recombination. |
| first_indexed | 2024-10-01T06:42:06Z |
| format | Journal Article |
| id | ntu-10356/101893 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:42:06Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1018932020-03-07T14:00:35Z Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method Liu, Xinjuan Pan, Likun Chen, Taiqiang Li, Jinliang Yu, Kai Sun, Zhuo Sun, Changqing School of Electrical and Electronic Engineering DRNTU::Science::Chemistry::Physical chemistry::Catalysis SnO2 quantum dots (QDs) were successfully synthesized via a microwave-assisted reaction of a SnO2 precursor in an aqueous solution using a microwave system. The morphology, structure and photocatalytic performance in the degradation of methylene blue (MB) were characterized by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction spectroscopy, UV-vis absorption/reflectance spectroscopy and electrochemical impedance spectroscopy, respectively. The results show that the SnO2 QDs synthesized at a pH value of 5 exhibit an optimal photocatalytic performance with a MB degradation rate of 90% at 240 min under visible light irradiation due to their easier adsorption of pollutants, higher visible light absorption and lower electron–hole pair recombination. 2013-10-25T07:32:54Z 2019-12-06T20:46:22Z 2013-10-25T07:32:54Z 2019-12-06T20:46:22Z 2013 2013 Journal Article Liu, X., Pan, L., Chen, T., Li, J., Yu, K., Sun, Z., & Sun, C. (2013). Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method. Catalysis Science & Technology, 3(7), 1805-1809. https://hdl.handle.net/10356/101893 http://hdl.handle.net/10220/16924 10.1039/c3cy00013c en Catalysis science & technology |
| spellingShingle | DRNTU::Science::Chemistry::Physical chemistry::Catalysis Liu, Xinjuan Pan, Likun Chen, Taiqiang Li, Jinliang Yu, Kai Sun, Zhuo Sun, Changqing Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method |
| title | Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method |
| title_full | Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method |
| title_fullStr | Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method |
| title_full_unstemmed | Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method |
| title_short | Visible light photocatalytic degradation of methylene blue by SnO2 quantum dots prepared via microwave-assisted method |
| title_sort | visible light photocatalytic degradation of methylene blue by sno2 quantum dots prepared via microwave assisted method |
| topic | DRNTU::Science::Chemistry::Physical chemistry::Catalysis |
| url | https://hdl.handle.net/10356/101893 http://hdl.handle.net/10220/16924 |
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