Nanoporous Fe-doped BiVO4 Modified with MIL-53 (Fe) for Enhanced Photoelectrochemical Stability and Water Splitting Perfromances
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Great interest has been attracted to enhancing the photoelectrochemical performances of BiVO4. However, there have rarely been reported about addressing their PEC stability. Herein, it is proposed that Fe ions doping could enhance the stability and PEC performances of BiVO4, which may because it could improve the crystalline structure and eliminates the crystal defects of BiVO4. Moreover, it is found that metal–organic framework can play a co-catalyst role during the PEC experiments. We designed and fabricated nanoporous Fe-doped BiVO4 modified with MIL-53(Fe), which exhibits much higher PEC performance and stability than pristine BiVO4 and Fe-doped BiVO4. It is believed that MIL-53(Fe) can capture the photogenerated holes and thus facilitates the charge separation efficiency.
KeywordsStability BiVO4 MIL-53(Fe) Photoelectrochemical Energy storage and conversion Nanocomposites
This work was supported by Key research and development Plan Project of Shandong Province (Grant Nos. 2015GGX104012; 2017GGX80104), A Project of Shandong Province Higher Educational Science and Technology Program (Grant No. J17KB001) and Shandong Provincial Natural Science Foundation (Grant Nos. ZR2014EL010, ZR2015BL018, ZR2015BL031, ZR2018LE002), the Science Technology Development Program of Binzhou (Grant Nos. 2014ZC0302; 2014RKX12).
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Conflict of interest
The authors declare that they have no conflict of interest.