期刊
ACS NANO
卷 13, 期 12, 页码 13949-13956出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.9b05673
关键词
supraparticles; porous; evaporation; superamphiphobic surface; photocatalysis
类别
资金
- Max Planck Center for Complex Fluid Dynamics
- ERC [340391]
- European Research Council (ERC) [340391] Funding Source: European Research Council (ERC)
Supraparticles consisting of nano- or microparticles have potential applications as, for example, photonic crystals, drug carriers, or heterogeneous catalysts. To avoid the use of solvent or processing liquid, one can make supraparticles by evaporating droplets of aqueous suspensions from super-liquid-repellent surfaces. Herein, a method to adjust the porosity of supraparticles is described; a high porosity is desired, for example, in catalysis. To prepare highly porous TiO2 supraparticles, polymer nanoparticles are co-dispersed in the suspension. Supraparticles are formed through evaporation of aqueous suspension droplets on superamphiphobic surfaces followed by calcination of the sacrificial polymer particles. The increase of porosity of up to 92% resulted in enhanced photocatalytic activity while maintaining sufficient mechanical stability.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据