Preparation of ligand-free TiO2 (anatase) nanoparticles through a nonaqueous process and their surface functionalization

被引：68

作者：

Kotsokechagia, T. ^{[1
]}

Cellesi, F. ^{[1
]}

Thomas, A. ^{[2
]}

Niederberger, M. ^{[3
]}

Tirelli, N. ^{[1
]}

机构：

[1] Univ Manchester, Sch Pharm & Pharmaceut Sci, Lab Polymers & Biomat, Manchester M13 9PT, Lancs, England

[2] Univ Manchester, Sch Phys & Astron, Photon Sci Inst, Manchester M13 9PL, Lancs, England

[3] ETH, Lab Multifunct Mat, Dept Mat, CH-8093 Zurich, Switzerland

来源：

LANGMUIR | 2008年 / 24卷 / 13期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/la800470e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We here present a new method for preparing ligand-free titania nanoparticles, which are easily amenable to surface functionalization in an aqueous environment. The specific advantage of this method is that it combines the advantages of nonaqueous synthetic processes (high crystallinity) to those of a surface functionalization in a water medium, which allows for a wider variety of biofunctional (and nonorganic-soluble) groups to be added on the nanoparticles. In particular, we report on the characterization of the three phases of synthesis, dispersion in water environment and surface functionalization of the nanoparticles, focusing on a qualitative evaluation of the surface adsorption mechanism.

引用

页码：6988 / 6997

页数：10

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