A Promising Photocatalyst: Fe2O3-Modified Porous BiVO4 Nanoplates

A Promising Photocatalyst: Fe2O3-Modified Porous BiVO4 Nanoplates

07This paper shows that Fe2O3 actes as an efficient co-catalyst, which contributes to the excellent photocatalytic activity of Fe2O3/BiVO4 porous nanoplates.

It presented a new method for synthesizing porous BiVO4 notoplates via exchange reaction between ligand 1,4-benzenedicarboxylate (BDC) in 2D Bi2(BDC)3 nanoplates derived from direct self-assembly and VO43- anions under hydrothermal condition.

Fe2O3-modified porous BiVO4 nanoplates were obtained through a simple hydrothermal deposition–precipitation route. The nanoplates average size is 100 nm in thickness, 500 nm in width, and 1.5 μm in length. Pores are linked together and distributed throughout the whole nanoplates. Tiny particles of Fe2O3 closely integrate with the surfaces of nanoplates.

The photocatalytic reaction rate of Fe2O3/BiVO4 is 31 and 21 times larger than that of unmodified BiVO4 and Bi2O3/BiVO4for degrading rhodamine B, respectively. Similarly,the photocatalytic reaction rate of Fe2O3/BiVO4 is 27 and 6 times larger than that of pristine BiVO4 and Bi2O3/BiVO4 for degrading phenol, respectively. Fe2O3/BiVO4 also displayed excellent photocatalytic activity for degrading organic pollutant.

The facile preparation method, low cost of raw materials, excellent photocatalytic activity, and good reusability of the Fe2O3/BiVO4 porous nanoplates make the material a promising photocatalyst for the application in the field of environmental remedy.

Original article citation

Ping Cai and Shu-Mei Zhou, “Fe2O3-Modified Porous BiVO4 Nanoplates with Enhanced Photocatalytic Activity”, Nano-Micro Lett. 7(2):183–193 (2015). doi:10.1007%2Fs40820-015-0033-9

A Highlight from Erzhen Mu for NMSTR.

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