片状铋/钒酸铋复合催化剂的制备及其光催化性能
收稿日期: 2020-07-15
网络出版日期: 2021-01-08
Synthesis and photocatalytic performance of sheet-like Bi/BiVO4 composite catalyst
Received date: 2020-07-15
Online published: 2021-01-08
冯飞 , 李书文 , 汪铁林 , 王为国 , 王存文 . 片状铋/钒酸铋复合催化剂的制备及其光催化性能[J]. 无机盐工业, 2021 , 53(1) : 107 -112 . DOI: 10.11962/1006-4990.2020-0064
A series of sheet-like Bi/BiVO4 composite photocatalysts with different Bi contents were synthesized using solvo-thermal method.The prepared catalysts were characterized by using X-ray diffraction（XRD）,X-ray photoelectron spectro-scopy（XPS）,scanning electron microscopy（SEM）,transmission electron microscopy（TEM）,ultraviolet-visible diffuse reflec-tion spectroscopy（UV-Vis DRS）,inductively coupled plasma optical emission spectroscopy（ICP-OES）,nitrogen adsorp-tion-desorption analysis and photocurrent response measurements.The photocatalytic performance of the sample was assessed by photodecomposition of methylene blue（MB） under xenon lamp irradiation.The results showed that the photocatalytic ac-tivity of BiVO4 was enhanced significantly with Bi self-doping.Finally,the photocatalytic reaction mechanism of Bi/BiVO4 composite was discussed by free radical capture experiments.
Key words： bismuth vanadate; composite semiconductor; photocatalysis; dye degradation
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