One step synthesis of Bi@Bi2O3@carboxylate-rich carbon spheres with enhanced photocatalytic performance

被引：34

作者：

Qu, Lingling ^{[1
]}

Luo, Zhijun ^{[2
,3
]}

Tang, Chao ^{[4
]}

机构：

[1] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China

[2] Jiangsu Univ, Sch Environm, Zhenjiang 212013, Peoples R China

[3] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China

[4] Maple Leaf Int High Sch, Zhenjiang 212013, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 11期

关键词：

Nanostructures; Composites; Chemical synthesis; Catalytic properties; BISMUTH NANOTUBES; TIO2; NANOPARTICLES; BLUE;

D O I：

10.1016/j.materresbull.2013.07.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bi@Bi2O3@carboxylate-rich carbon core-shell nanosturctures (Bi@Bi2O3@CRCSs) have been synthesized via a one-step method. The core-shell nanosturctures of the as-prepared samples were confirmed by Xray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and Raman spectroscopy. The formation of Bi@Bi2O3@CRCSs core-shell nanosturctures should attribute to the synergetic roles of different functional groups of sodium gluconate. Bi@Bi2O3@CRCSs exhibits significant enhanced photocatalytic activity under visible light irradiation (lambda > 420 nm) and shows an O-2-dependent feature. According to trapping experiments of radicals and holes, hydroxyl radicals were not the main active oxidative species in the photocatalytic degradation of MB, but O-2(center dot-) are the main active oxidative species. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：4601 / 4605

页数：5

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