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Liu B, Mo Q, Zhu J, Hou Z, Peng L, Tu Y, Wang Q. Synthesis of Fe and N Co-doped Bi2Ti2O7 Nanofiber with Enhanced Photocatalytic Activity Under Visible Light Irradiation. Nanoscale Res Lett 2016; 11:391. [PMID: 27613068 PMCID: PMC5016314 DOI: 10.1186/s11671-016-1610-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 09/02/2016] [Indexed: 06/06/2023]
Abstract
A series of N-Fe-Bi2Ti2O7 nanofibers were successfully synthesized. The structure, morphology, visible light photocatalytic properties, and the degradation mechanism of N-Fe-Bi2Ti2O7 were investigated. A new phase of Bi4Ti3O7 and smaller band gap could be observed after doing Fe and N into Bi2Ti2O7. It can degrade 66 % MO and 87 % MB in 120 min under visible light irradiation, which is much more than that of pure Bi2Ti2O7. The results indicate that such unique structure could enhance the charge transfer between the nanostructure interfaces and therefore improve its photocatalytic activities.
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Affiliation(s)
- Bitao Liu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China.
| | - Qionghua Mo
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
- Material and Energy Department, Southwest University, Beibei, Chongqing, 400700, China
| | - Jiali Zhu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
| | - Zhupei Hou
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
| | - Lingling Peng
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
| | - Yijia Tu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China.
- College of Art and Design, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China.
| | - Qinyi Wang
- Chemical Engineering, University of Missouri, Columbia, MO, 65211-2200, USA
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Chen Y, Lu Q, Yan X, Mo Q, Chen Y, Liu B, Teng L, Xiao W, Ge L, Wang Q. Enhanced Photocatalytic Activity of the Carbon Quantum Dot-Modified BiOI Microsphere. Nanoscale Res Lett 2016; 11:60. [PMID: 26842793 PMCID: PMC4740481 DOI: 10.1186/s11671-016-1262-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 01/14/2016] [Indexed: 05/28/2023]
Abstract
Novel carbon quantum dot (CQD)-modified BiOI photocatalysts were prepared via a facile hydrothermal process. The CQD-modified BiOI materials were characterized by multiple techniques. The CQD with an average size around several nanometers was distributed on the surface of BiOI microsphere. Its photocatalytic activity was investigated sufficiently by the photodegradation of methylene orange (MO). The results showed that the CQD/BiOI 1.5 wt.% sample exhibited the optimum photocatalytic activity, which was 2.5 times that of the pure BiOI. This improvement was attributed to the crucial role of CQDs, which could be acted as a photocenter for absorbing solar light, charge separation center for suppressing charge recombination.
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Affiliation(s)
- Yuan Chen
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
- School of Materials Science and Engineering, Chongqing University of Technology, Banan, Chongqing, 400054, China
| | - Qiuju Lu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
| | - Xuelian Yan
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
- School of Materials Science and Engineering, Chongqing University of Technology, Banan, Chongqing, 400054, China
| | - Qionghua Mo
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
- Faculty of Materials and Energy, Southwest University, Beibei, Chongqing, 400715, China
| | - Yun Chen
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
| | - Bitao Liu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China.
| | - Liumei Teng
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
| | - Wei Xiao
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China.
| | - Liangsheng Ge
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China
| | - Qinyi Wang
- Department of Chemical Engineering, University of Missouri, Columbia, MO, 65211-2200, USA
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