Synthesis and Characterization of Pyrochlore Bi2Sn2O7Doping with Praseodymium by Hydrothermal Method and Its Photocatalytic Activity Study | Zendy

Weicheng Xu | Zendy; Guangyin Zhou | Zendy; Jianzhang Fang | Zendy; Zhang Liu | Zendy; YunFang Chen | Zendy; Chaoping Cen | Zendy

Open Access

Synthesis and Characterization of Pyrochlore Bi₂Sn₂O₇Doping with Praseodymium by Hydrothermal Method and Its Photocatalytic Activity Study

Author(s) -

Weicheng Xu,

Guangyin Zhou,

Jianzhang Fang,

Zhang Liu,

YunFang Chen,

Chaoping Cen

Publication year - 2013

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2013/234806

Subject(s) - photocatalysis , x ray photoelectron spectroscopy , rhodamine b , praseodymium , dopant , materials science , diffuse reflectance infrared fourier transform , scanning electron microscope , hydrothermal circulation , visible spectrum , nuclear chemistry , transmission electron microscopy , doping , anatase , analytical chemistry (journal) , chemistry , catalysis , chemical engineering , nanotechnology , organic chemistry , optoelectronics , engineering , metallurgy , composite material

Praseodymium doped Bi2Sn2O7 (BSO), as a visible-light responsive photocatalyst, was prepared by a hydrothermal method with different dopant contents. The as-prepared photocatalysts were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), N2 adsorption-desorption isotherm, X-ray photoelectron spectroscopy analysis (XPS), and UV-Vis diffuse reflectance spectroscopy (DRS). The photocatalytic activity of prepared catalysts was evaluated by the degradation of Rhodamine Bextra (RhB) and 2,4-dichlorophenol (2,4-DCP) in aqueous solution under visible light irradiation. It was found that Pr doping inhibited the growth of crystalline size and the as-prepared materials were small in size (10–20 nm). In our experiments, Pr-doped BSO samples exhibited enhanced visible-light photocatalytic activity compared to the undoped BSO, and the optimal dopant amount of Pr was 1.0 mol% for the best photocatalytic activity. On the basis of the calculated PL spectra, the mechanism of enhanced photocatalytic activity has been discussed.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research