A facile layer-by-layer adsorption and reaction method to the preparation of titanium phosphate ultrathin films

被引：79

作者：

Wang, QF ^{[1
]}

Zhong, L ^{[1
]}

Sun, JQ ^{[1
]}

Shen, JC ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2005年 / 17卷 / 13期

关键词：

D O I：

10.1021/cm050646w

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：

A layer-by-layer adsorption and reaction method was developed for the preparation of titanium phosphate ultrathin films. By repetitive adsorption of hydrated titanium from aqueous Ti(SO4)(2) solution and subsequent reaction with phosphate groups, ultrathin films of titanium phosphate were fabricated. Regular film growth was verified by UV-vis absorption spectroscopy and quartz crystal microbalance measurements. The film composition is mainly Ti(HPO4)(2), as confirmed by X-ray photoelectron spectroscopy and FT-IR spectroscopy. The as-prepared titanium phosphate films are uniform, highly stable, and their thickness can be well controlled by adjusting the number of adsorption-reaction cycles and pH value of Ti(SO4)(2) and phosphate salt solutions. The layer-by-layer adsorption and reaction method provides a facile way to prepare ultrathin films of titanium phosphate and other kinds of metal phosphates.

引用

页码：3563 / 3569

页数：7

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