Template-free and morphology-controlled hydrothermal growth of single-crystalline Bi12TiO20 with excellent simulated sunlight photocatalytic activity

被引：24

作者：

Guo, Wan ^{[1
]}

Zhang, Shengqu ^{[1
,2
]}

Guo, Yingna ^{[1
]}

Ma, Ling ^{[1
]}

Su, Fang ^{[1
]}

Guo, Yihang ^{[1
]}

Geng, Aifang ^{[3
]}

机构：

[1] NE Normal Univ, Sch Chem, Changchun 130024, Peoples R China

[2] Beihua Univ, Analyt & Testing Ctr, Jilin 132013, Jilin, Peoples R China

[3] Changchun Univ Sci & Technol, Sch Chem & Environm Engn, Changchun 130022, Peoples R China

来源：

RSC ADVANCES | 2013年 / 3卷 / 12期

关键词：

BISMUTH TITANATE BI12TIO20; DEGRADATION; DECOMPOSITION; MICROSPHERES; ARRAYS; ACID;

D O I：

10.1039/c3ra22592e

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Single-crystalline bismuth titanates (Bi12TiO20) with the cubic phase and various morphologies (flower-, belt-, tetrahedral-like) were controllably fabricated by using a mild template-free hydrothermal process. The samples were fully characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution TEM, nitrogen porosimetry measurement, UV-vis diffuse reflectance spectroscopy (DRS), and X-ray photoelectron spectroscopy (XPS). The influence of the solvent and the concentration of NO3- in the reaction system on the crystallinity and morphology of the Bi12TiO20 samples was investigated in detail. Bi12TiO20 crystals were used as the sunlight-driven photocatalysts to degrade aqueous dye methyl orange (MO) and p-nitrophenol (PNP), and the influence of Bi12TiO20 morphology on the photocatalytic activity was discussed. Finally, the recyclability of Bi12TiO20 was evaluated through three consecutive runs.

引用

页码：4008 / 4017

页数：10

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