三维花状钛酸盐纳米结构的制备与特性

Fabrication and characteristics of three-dimensional flower-like titanate nanostructures.

作者信息

Liu Min, Piao Lingyu, Wang Wenjing

机构信息

Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, P R. China.

出版信息

J Nanosci Nanotechnol. 2010 Nov;10(11):7469-72. doi: 10.1166/jnn.2010.2870.

DOI:10.1166/jnn.2010.2870

PMID:21137961

Abstract

A novel and facile approach has been developed to fabricate three-dimension (3D) flower-like titanate nanostructures from Ti powders. The synthesized flower-like titanate nanostructures were composed of many thin nanoribbons and have an ultrahigh specific surface area of 572.3 m2/g. After high temperature heat treatment, the flower-like titanate nanostructures were totally transformed into corresponding anatase TiO2 nanostructures without destroying their 3D hierarchical structural motif. The flower-like TiO2 nanostructures exhibited high photocatalytic activity for photodecomposition of methyl blue, and they could possibly be further used in photovoltaic cell, sensors, Li-ion batteries, and so on.

摘要

已开发出一种新颖且简便的方法，用于由钛粉制备三维（3D）花状钛酸盐纳米结构。合成的花状钛酸盐纳米结构由许多细纳米带组成，具有572.3 m2/g的超高比表面积。经过高温热处理后，花状钛酸盐纳米结构完全转变为相应的锐钛矿型TiO2纳米结构，而不破坏其3D分级结构模式。花状TiO2纳米结构对甲基蓝的光分解表现出高光催化活性，并且它们可能进一步用于光伏电池、传感器、锂离子电池等。