A general approach for transferring hydrophobic nanocrystals into water

被引：330

作者：

Zhang, Tierui ^{[1
]}

Ge, Jianping ^{[1
]}

Hu, Yongxing ^{[1
]}

Yin, Yadong ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA

来源：

NANO LETTERS | 2007年 / 7卷 / 10期

关键词：

IRON-OXIDE NANOPARTICLES; LOW-TEMPERATURE SYNTHESIS; TIO2; NANOCRYSTALS; HIGHLY CRYSTALLINE; AQUEOUS-SOLUTIONS; LIGAND-EXCHANGE; PHASE-TRANSFER; QUANTUM DOTS; SURFACE; PHOTOCATALYSIS;

D O I：

10.1021/nl071928t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hydrophobic inorganic nanocrystals have been transferred from organic solvent to aqueous solution through a robust and general ligand exchange procedure. Polyelectrolytes such as poly(acrylic acid) and poly(allylamine) are used to replace the original hydrophobic ligands on the surface of nanocrystals at an elevated temperature in a glycol solvent and eventually render the nanocrystals highly water soluble. The physical properties of the nanocrystals, such as superparamagnetism, photocatalytic activity, and photoluminescence, are maintained or improved after ligand exchange.

引用

页码：3203 / 3207

页数：5

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