Construction of composite thin films via layer-by-layer electrostatic self-assembly of chitosan/phosphotungstate acid

被引：0

作者：

Zhang Li ^{[1
]}

Zhuo Xin ^{[1
]}

Wang Hong-Yan ^{[1
]}

Wang Cong ^{[1
]}

机构：

[1] Suzhou Coll, Dept Biol & Chem, Anhui Key Lab Spin Elect & Nanomat Cultivating Ba, Suzhou 234000, Anhui, Peoples R China

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2007年 / 23卷 / 11期

关键词：

chitosan/phosphotungstate acid composite thin film; layer-by-layer self-assembly; multilayer films;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Chitosan (CTS) and phosphotungstate acid (PTA) were fabricated on solid substrates by means of layer-bylayer electrostatic self-assembly technique (LBL). The resulting films were characterized by UV-Vis, FTIR, XPS, atomic force microscopy (AFM) and cyclic voltammetry (CV) measurements. UV-Vis spectra show that the absorbance values at characteristic wavelengths of the multilayer films increase almost linearly with the number of chitosan/PTA bilayers, suggesting that the deposition process is regular and highly reproducible from layer to layer. XPS and FTIR spectra confirm the incorporation of chitosan and PTA into the films. AFM images indicate that the surface of the multilayer films is rough. The result of CV shows that the multiplayer films maintain good electrocatalytic activity of phosphotungstate acid.

引用

页码：1988 / 1993

页数：6

共 19 条

[1] DODECATUNGSTOPHOSPHORIC ACID HEXAHYDRATE, (H5O2+)3(PW12O403-) - TRUE STRUCTURE OF KEGGINS PENTAHYDRATE FROM SINGLE-CRYSTAL X-RAY AND NEUTRON-DIFFRACTION DATA [J].