A novel BiFeO3 photocatalyst in the shape of uniform microspheres has been synthesized by solvothermal process assisted with chelating effect of citric acid. The higher photoactivity of this catalyst than that of BiFeO3 via solid-state reaction for methylene blue (MB) degradation under visible-light irradiation is owing to the high crystallization of perovskite-type BiFeO3, high surface area with hollow structure, narrow band gap energy of 2.1 eV, and the promotion of separation of photo-induced electrons and holes. Additionally, no decrease of activity after being reused repetitively for five times is indicative of the high hydrothermal stability of BiFeO3 particles without crystal phase transformation. (C) 2010 Elsevier B.V. All rights reserved.
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Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaUniv Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
Li Shun
Lin Yuan-Hua
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaUniv Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
Lin Yuan-Hua
Zhang Bo-Ping
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Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R ChinaUniv Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
Zhang Bo-Ping
Nan Ce-Wen
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaUniv Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
机构:Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Gao, Feng
Chen, Xinyi
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机构:Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Chen, Xinyi
Yin, Kuibo
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机构:Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Yin, Kuibo
Dong, Shuai
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机构:Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Dong, Shuai
Ren, Zhifeng
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机构:Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Ren, Zhifeng
Yuan, Fang
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机构:Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Yuan, Fang
Yu, Tao
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Yu, Tao
Zou, Zhigang
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机构:Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Zou, Zhigang
Liu, Jun-Ming
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Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R ChinaNanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Niu, Feng
Chen, Da
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Chen, Da
Qin, Laishun
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Qin, Laishun
Gao, Tong
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Gao, Tong
Zhang, Ning
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Zhang, Ning
Wang, Sen
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Wang, Sen
Chen, Zhi
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Chen, Zhi
Wang, Jiangying
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Wang, Jiangying
Sun, Xingguo
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Sun, Xingguo
Huang, Yuexiang
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Niu, Feng
Gao, Tong
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Gao, Tong
Zhang, Ning
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Zhang, Ning
Chen, Zhi
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
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Huang, Qiaoli
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
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Qin, Laishun
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Qin, Laishun
Sun, Xingguo
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China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R ChinaChina Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
Sun, Xingguo
Huang, Yuexiang
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