| Biogenic C-doped titania templated by cyanobacteria for visible-light photocatalytic degradation of Rhodamine B |
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| 作者姓名： | Jiao He Guoli Zi Zhiying Yan Yongli Li Jiao Xie Deliang Duan Yongjuan Chen Jiaqiang Wang |
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| 作者单位： | The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (Project NSFC-YN U1033603, 21063016) and the Program for Innovative Research Teams (in Science and Technology) in the University of Yunnan Province (IRTSTYN). |
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| 摘 要： | Cyanobacteria, which occurred in eutrophic water harvest solar light to carry out photosynthesis with high efficiency. In this work, cyanobacteria （Microcystis sp.） were used as biotemplate to synthesize titania structure. The synthesized titania sample had similar morphology to that of the original template in spite of the fragile unicellular structures and extremely high water content of cyanobacterial cells. Incorporation of biogenic C, as well as the morphology inherited from biotemplate improved visible- light absorbance of the titania structure. The sample exhibited higher visible-light photocatalytic activity than commercial titania photocatalyst Degussa P25 for Rhodamine B （RhB） degradation. Compared with those C-doped titania photocatalysts prepared by other methods, cyanobacteria templated titania photocatalyst offer some potential for competitive advantages. The reported strategy opened up a new use for the cyanobacteria. It could also be used for titania in applications such as treatment of polluted water, dye-sensitized solar cells, or other regions.
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| 关 键 词： | 二氧化钛光催化剂 光催化降解 罗丹明B 可见光 模板化 C掺杂 蓝藻 染料敏化太阳能电池 |
| 收稿时间： | 13 May 2013 |
| 修稿时间： | 8/8/2013 12:00:00 AM |
Biogenic C-doped titania templated by cyanobacteria for visible-light photocatalytic degradation of Rhodamine B |
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| Jiao He,Guoli Zi,Zhiying Yan,Yongli Li,Jiao Xie,Deliang Duan,Yongjuan Chen,Jiaqiang Wang.Biogenic C-doped titania templated by cyanobacteria for visible-light photocatalytic degradation of Rhodamine B[J].Journal of Environmental Sciences,2014,26(5):1195-1202. |
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| Authors: | Jiao He Guoli Zi Zhiying Yan Yongli Li Jiao Xie Deliang Duan Yongjuan Chen and Jiaqiang Wang |
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| Institution: | The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China;The Universities' Center for Photocatalytic Treatment of Pollutants in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Sciences & Technology, Yunnan University, Kunming 650091, China |
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| Abstract: | Cyanobacteria, which occurred in eutrophic water harvest solar light to carry out photosynthesis with high efficiency. In this work, cyanobacteria (Microcystis sp.) were used as biotemplate to synthesize titania structure. The synthesized titania sample had similar morphology to that of the original template in spite of the fragile unicellular structures and extremely high water content of cyanobacterial cells. Incorporation of biogenic C, as well as the morphology inherited from biotemplate improved visible-light absorbance of the titania structure. The sample exhibited higher visible-light photocatalytic activity than commercial titania photocatalyst Degussa P25 for Rhodamine B (RhB) degradation. Compared with those C-doped titania photocatalysts prepared by other methods, cyanobacteria templated titania photocatalyst offer some potential for competitive advantages. The reported strategy opened up a new use for the cyanobacteria. It could also be used for titania in applications such as treatment of polluted water, dye-sensitized solar cells, or other regions. |
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| Keywords: | cyanobacteria titania C-doped visible-light photocatalysis |
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