Synthesis of Pr-doped ZnO nanoparticles: Their structural,optical, and photocatalytic properties

被引：0

作者：

陈军联 ^{[1
,2
]}

Neena Devi ^{[2
]}

李娜 ^{[1
,2
]}

付德君 ^{[2
]}

柯贤文 ^{[1
]}

机构：

[1] School of Printing and Packaging, Wuhan University

[2] Hubei Key Laboratory of Nuclear Solid Physics and School of Physics and Technology, Wuhan University

来源：

Chinese Physics B | 2018年 / 27卷 / 08期

关键词：

ZnO; Pr-doped; photocatalytic activity;

D O I：

暂无

中图分类号：

O643.36 [催化剂]; TB383.1 [];

学科分类号：

081705 ; 070205 ; 080501 ; 1406 ;

摘要：

Undoped and praseodymium-doped zinc oxide(Pr-doped ZnO)(with 2.0-mol%–6.0-mol% Pr) nanoparticles as sunlight-driven photocatalysts are synthesized by means of co-precipitation with nitrates followed by thermal annealing.The structure, morphology, and chemical bonding of the photocatalysts are studied by x-ray diffraction(XRD), scanning electron microscopy(SEM) with energy dispersive x-ray emission spectroscopy(EDS), x-ray photoelectron spectroscopy(XPS), and Fourier transform infrared spectroscopy(FTIR), respectively. The optical properties are studied by photoluminescence(PL) and UV-vis diffuse reflectance spectroscopy(UV-vis DRS). We find that Pr doping does not change the crystallinity of ZnO; but it reduces the bandgap slightly, and restrains the recombination of the photogenerated electron–hole pairs. The photocatalytic performance of the photocatalysts is investigated by the photodegradation reaction of 10-mg/L rhodamine B(RhB) solution under simulated sunlight irradiation, showing a degradation rate of 93.75% in ZnO doped with6.0-mol% Pr.

引用

页码：397 / 403

页数：7