Synthesis of visible light-active CeO2 sheets via mussel-inspired CaCO3 mineralization

被引：35

作者：

Ko, Jong Wan ^{[1
]}

Kim, Jae Hong ^{[1
]}

Park, Chan Beum ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

CO OXIDATION; MULTIFUNCTIONAL COATINGS; DOPED CEO2; FUEL-CELL; NANOPARTICLES; SURFACE; WATER; OXIDE; DEGRADATION; IRRADIATION;

D O I：

10.1039/c2ta00782g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Visible light-active, nano-grained CeO2 sheets are successfully synthesized using polydopamine-induced CaCO3 vaterite microspheres. The nano-grained CeO2 sheets exhibited a distinct polycrystalline sheet-like structure with grains, with a red-shift in the UV-visible absorption spectrum and a much narrower bandgap (2.71-2.83 eV). Visible light-responsive photocatalytic activity was observed with nano-grained CeO2 sheets at a rate constant that was much higher than that of CeO2 nanoparticles.

引用

页码：241 / 245

页数：5

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