Citation: WANG Dan-Jun, YUE Lin-Lin, GUO Li, ZHANG Jie, FU Feng, XUE Gang-Lin. Synthesis and Enhanced Photocatalytic Mechanism of Fe³⁺ Doped Three-Dimensional Bi₂WO₆ Hierarchical Nanoarchitectures[J]. Chinese Journal of Inorganic Chemistry, ;2014, 30(4): 961-968. doi: 10.11862/CJIC.2014.137 shu

Synthesis and Enhanced Photocatalytic Mechanism of Fe³⁺ Doped Three-Dimensional Bi₂WO₆ Hierarchical Nanoarchitectures

WANG Dan-Jun ^1,2,, ,
YUE Lin-Lin ¹ ,
GUO Li ¹ ,
ZHANG Jie ¹ ,
FU Feng ¹ ,
XUE Gang-Lin ²

1.
1 College of Chemistry &Chemical Engineering, Yan'an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an, Shaanxi 716000, China;

Corresponding author: WANG Dan-Jun,
Received Date: 11 October 2013
Available Online: 5 December 2013
Fund Project: 国家自然科学基金(No.20973133,21073106)；陕西省科技厅工业攻关项目(No.2013K11-08)；陕西省科技厅统筹项目(No.2012KG03-16)陕西省教育厅科研基金(No.13JK0669)；陕西省化学反应工程重点实验室专项科研基金(No.12JS117)；延安市工业攻关项目(No.2011kg-13)；延安大学重点项目(No.YD22013-07)资助。 (No.20973133,21073106)；陕西省科技厅工业攻关项目(No.2013K11-08)；陕西省科技厅统筹项目(No.2012KG03-16)陕西省教育厅科研基金(No.13JK0669)；陕西省化学反应工程重点实验室专项科研基金(No.12JS117)；延安市工业攻关项目(No.2011kg-13)；延安大学重点项目(No.YD22013-07)

Fe³⁺ doped three-dimensional Bi₂WO₆ hierarchical nanoarchitectures have been synthesized via a hydr-othermal process. XRD, FE-SEM, HRTEM, EDS and UV-Vis-DRS techniques were employed to characterize the phase composition, morphology and spectrum properties of the as-synthesized samples. Rhodamine Bwas selected as a model pollutant to investigate the photocatalytic activity of the as-synthesized sample under visible-light. The results indicate that Fe³⁺ doped Bi₂WO₆ exhibits a novel hierarchical nanoarchitectures, and Fe³⁺ doping can enhance the photocatalytic activity of Bi₂WO₆ photocatalyst, the amount of Fe³⁺ doping has a serious effect on the photocatalytic activity of Bi₂WO₆ photocatalyst. The results also reveal that Fe³⁺ doped Bi₂WO₆ nanoarchitecture with high stability is easy to be recycled. Furthermore, the mechanism for the enhancement of the photocatalytic activity was also investigated. The doped electron deficient Fe³⁺ ions could act as electron traps and facilitate the separation of photogenerated electron-hole pairs, thus improve the photocatalytic efficiency.
- photocatalysis;3D hierarchical Bi₂WO₆;Fe³⁺ doping;photocatalytic activity enhancement mechanism
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Synthesis and Enhanced Photocatalytic Mechanism of Fe³⁺ Doped Three-Dimensional Bi₂WO₆ Hierarchical Nanoarchitectures