Citation: BAI Yu, ZENG De-Bin, LIU Ren-Yue, LI Shao-Yu, YANG Kai, HUANG Wei-Ya, YU Chang-Lin. Three-Dimensional Dendritic C/PbWO₄ Catalysts: Preparation and Photocatalytic Performance in Degrading Different Dyes[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(4): 669-675. doi: 10.11862/CJIC.2018.089 shu

Three-Dimensional Dendritic C/PbWO₄ Catalysts: Preparation and Photocatalytic Performance in Degrading Different Dyes

BAI Yu ¹ ,
ZENG De-Bin ¹ ,
LIU Ren-Yue ¹ ,
LI Shao-Yu ¹ ,
YANG Kai ¹ ,
HUANG Wei-Ya ¹ ,
YU Chang-Lin ^1,2,,

1.
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
2.
State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China

Corresponding author: YU Chang-Lin, yuchanglinjx@163.com
Received Date: 3 November 2017
Revised Date: 22 January 2018

Figures(8)

Three-dimensional dendritic C/PbWO₄ composite photocatalyst with different C content (Mass fraction=0.13%, 0.26%, 0.52%, 0.78%) was synthesized by a hydrothermal method. The photocatalysts were characterized by X-ray diffraction, N₂ sorption measurements, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, ultraviolet-visible diffuse reflectance spectroscopies, photoluminescence, and photoelectrochemical measurement. The results showed that the dendritic C/PbWO₄ composite photocatalyst with 0.52% C exhibits the best photocatalytic performance in degrading orange Ⅱ, methyl orange and rhodamine B. Under the light irradiation for 100 min, the degradation rate of the acid orange Ⅱ (20 mg·L^-1) over 0.52% C/PbWO₄ reached 97% which was about 2.48 times as that of bare PbWO₄. The main reason for the increase of activity is that carbon attached to the surface of the catalyst becomes the electron trapping center, and it can effectively capture the photogenerated electrons. Therefore, the photo-generated electron-hole pairs were effectively separated to produce more active species (·OH, h⁺) to participate in the degradation of organic dye molecules.
- dendritic-like,
- PbWO₄,
- carbon-doping,
- organic dyes,
- composite photocatalyst
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沈阳化工大学材料科学与工程学院沈阳 110142

Three-Dimensional Dendritic C/PbWO4 Catalysts: Preparation and Photocatalytic Performance in Degrading Different Dyes

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通讯作者: 陈斌, bchen63@163.com

Three-Dimensional Dendritic C/PbWO₄ Catalysts: Preparation and Photocatalytic Performance in Degrading Different Dyes