Self-propagating combustion synthesis and synergistic photocatalytic activity of GdFeO3 nanoparticles

被引：24

作者：

Li, Li ^{[1
,2
]}

Wang, Xiong ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Huainan Normal Univ, Sch Chem & Mat Engn, Huainan 232038, Peoples R China

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2016年 / 79卷 / 01期

关键词：

GdFeO3; Nanoparticle; Glycine-assisted combustion; Photocatalyst; Photo-Fenton-like; MICROWAVE-ASSISTED SYNTHESIS; CONTROLLABLE SYNTHESIS; LNFEO(3) LN; DEGRADATION; LA; SM; NANOSTRUCTURES; PERFORMANCE; COMPOSITES; EFFICIENT;

D O I：

10.1007/s10971-016-4017-0

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

GdFeO3 (GFO) nanoparticles were synthesized by a glycine-assisted self-propagating combustion process. The as-synthesized GdFeO3 was characterized by X-ray diffraction, transmission electron microscopy, and UV-Vis diffuse reflectance spectra. The visible-light-responsive photocatalytic activity of GdFeO3 nanoparticles was evaluated by the photodegradation of Rhodamine B under visible light. The results indicate that the as-prepared GdFeO3 nanoparticles exhibit remarkable visible-light photocatalytic activity through the synergism of semiconductor-photocatalyzed oxidation and heterogeneous Fenton-like reaction. Compared with the bulk GFO, the photodecomposition rate of RhB was improved about 22 times when the simultaneous presence of the nanoparticles and H2O2 was observed. The mechanism and the main active species involved in photocatalytic oxidative reaction were also investigated through the carriers trapping experiments.

引用

页码：107 / 113

页数：7

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