Synthesis of meso-porous α-Ga2O3 from liquid Ga metal having significantly high photocatalytic activity for CO2 reduction with water

被引：0

作者：

Aoki, Tomomi ^{[1
]}

Ichikawa, Kyoshiro ^{[1
]}

Sonoda, Kenta ^{[1
]}

Yamamoto, Muneaki ^{[2
]}

Tanabe, Tetsuo ^{[2
]}

Yoshida, Tomoko ^{[2
]}

机构：

[1] Osaka City Univ, Grad Sch Engn, Appl Chem & Bioengn, Osaka 5588585, Japan

[2] Osaka City Univ, Res Ctr Artificial Photosynth, Osaka 5588585, Japan

来源：

RSC ADVANCES | 2022年 / 12卷 / 12期

关键词：

GALLIUM OXIDE; CONVERSION; GA2O3;

D O I：

10.1039/d1ra09039a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have succeeded in synthesizing meso-porous alpha-Ga2O3 which shows significantly high photocatalytic activity for CO2 reduction with water. The sample was synthesized by hydroxidation of liquid Ga metal in water to obtain GaOOH and Ga(OH)(3), followed by the calcination of the mixed hydroxides at 773 K for 1 hour which converted them to meso-porous alpha-Ga2O3. The nano-pores remained as the trace of the evaporation of water produced by the oxidation of the hydroxides during the calcination. The photocatalytic activity of the synthesized meso-porous alpha-Ga2O3 for CO2 reduction with water was as high as or higher than previous studies using various types of Ga2O3 with and without cocatalysts.

引用

页码：7164 / 7167

页数：4

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