Synthetic bismuth silicate nanostructures: Photocatalysts grown from silica aerogels precursors

被引：16

作者：

Wei, Wei ^{[1
]}

Xie, Jimin ^{[1
]}

Meng, Suci ^{[1
,2
]}

Lu, Xiaomeng ^{[1
]}

Yan, Zaoxue ^{[1
]}

Zhu, Jianjun ^{[1
]}

Cui, Henglv ^{[1
]}

机构：

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

[2] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Mesoscop Chem MOE, Inst Theoret & Computat Chem, Nanjing 210093, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH | 2013年 / 28卷 / 13期

基金：

中国国家自然科学基金;

关键词：

P-BLOCK METAL; WATER DECOMPOSITION; HYDROTHERMAL SYNTHESIS; PERFORMANCE; DEGRADATION;

D O I：

10.1557/jmr.2013.65

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bismuth silicate with two morphologies (nanoflowers/nanoplates) was successfully fabricated with silica aerogels via a hydrothermal method in polyvinylpyrrolidone (PVP)-mediated processes for the first time. The obtained nanomaterials were characterized using x-ray powder diffraction, scanning electron microscopy, the Brunauer-Emmett-Teller (BET) surface area analysis, and UV-vis diffuse reflectance spectroscopy. It was found that the concentration of PVP plays an important role in the formation of the hierarchical nanoflowers. The formation mechanism for this novel morphology was proposed on the basis of experimental results. Moreover, the photocatalytic performances of Bi2SiO5 nanoflowers/nanoplates were also investigated. The results revealed that Bi2SiO5 nanoflowers exhibited higher activity than Bi2SiO5 nanoplates due to its suitable morphology, higher BET surface area.

引用

页码：1658 / 1668

页数：11

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