Synthesis of ω-Bi2O3 micropyramids with excellent photocatalytic properties

被引：4
|
作者：
Xu, Zezhong [1 ]
Han, Chengliang [2 ]
Xie, Jinsong [2 ]
机构：
[1] Hefei Univ, Analyt & Testing Ctr, Hefei 230601, Peoples R China
[2] Hefei Univ, Sch Energy Mat & Chem Engn, Hefei 230601, Peoples R China
来源：
MICRO & NANO LETTERS | 2020年 / 15卷 / 04期
关键词：
CONTROLLABLE SYNTHESIS; ALPHA-BI2O3; GAMMA-BI2O3; DEGRADATION; FABRICATION; BETA-BI2O3; BISMUTH;
D O I：
10.1049/mnl.2019.0330
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Novel triclinic bismuth oxide (omega-Bi2O3) microcrystals with a pyramid-like shape were successfully synthesised by a facile hydrothermal method. The effects of potassium sodium tartrate (KNaC4H4O6 center dot 4H(2)O) concentration and the reaction time on the morphology were investigated, respectively. The experimental results showed that the tartrate (C4H4O62) ions were responsible for the crystal growth of pyramid-like omega-Bi2O3 at the same reaction time. The photocatalytic activity of omega-Bi2O3 pyramids was evaluated by degrading methyl orange under the visible-light irradiation, revealing the omega-Bi2O3 pyramids exhibited outstanding photocatalytic activity due to its suitable bandgap energy.
引用
收藏
页码：218 / 220
页数：3
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