Journal
CHEMICAL ENGINEERING JOURNAL
Volume 358, Issue -, Pages 480-496Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2018.10.036
Keywords
Bismuth tungstate; Nano structure; Photocatalysis; Environmental pollutant treatment; Clean-energy production
Categories
Funding
- Program for the National Natural Science Foundation of China [51579098, 51779090, 51709101, 51278176, 51408206, 51521006]
- Science and Technology Plan Project of Hunan Province [2017SK2243, 2016RS3026]
- National Program for Support of Top-Notch Young Professionals of China
- Program for New Century Excellent Talents in University [NCET-13-0186]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT-13R17]
- Fundamental Research Funds for the Central Universities [531107050978, 531107051080]
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Bismuth tungstate with different structures and morphologies show different properties. The structure and morphology have been proven to be critical factors to tune the electronic properties to influence photocatalytic performance. Notably, nano-structured bismuth tungstate were found to exhibit high activity in photocatalytic degradation process. Controllable fabrication on nano structures with desired morphology is indispensable to achieve the related properties well. However, a review that declare the correlation between the property and the fabrication, structure and morphology of bismuth tungstate is still absent. Therefore, we firstly summarize a series of recent fabrication methods for various dimensional nano structures of bismuth tungstate. Then the modification of nano-structured BWO to improve the photocatalytic performance are presented, including morphological manipulation, doping or substitution, solid solution fabrication, and compound formation. The mechanism of photocatalytic oxidation and reduction process over nano-structured bismuth tungstate is also explored, especially the role of radical species. Additionally, advanced environmental application are summarized. Finally, unresolved challenges and potential applications of nano-structured bismuth tungstate are presented for future research directions.
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