Preparation of ultrathin membranes by layer-by-layer deposition of layered double hydroxide (LDH) and polystyrene sulfonate (PSS)

被引：38

作者：

Hornok, V

Erdohelyi, A

Dékány, I

机构：

[1] Univ Szeged, Dept Colloid Chem, Nanostruct Mat Res Grp, Hungarian Acad Sci, H-6720 Szeged, Hungary

[2] Univ Szeged, Dept Solid State & Radiochem, H-6720 Szeged, Hungary

来源：

COLLOID AND POLYMER SCIENCE | 2005年 / 283卷 / 10期

关键词：

layered double hydroxides; membranes; multilayers;

D O I：

10.1007/s00396-004-1255-4

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：

Nanofilms were prepared by consecutively alternating adsorption of Mg-Al (2:1) layered double hydroxide (LDH) and polysodium 4-styrenesulfonate (PSS). The charge density of oppositely charged materials strongly affect film properties like thickness and ordering. The specific charge of the colloid particles (LDH) and macromolecules was determined with the particle charge detector. The sequential build-up of the thin films was followed by spectrophotometry and X-ray diffraction. The surface morphology of the multilayers was characterized by atomic force microscopy. The influence of the charge density of the applied materials and of the mass ratio of LDH/PSS on the film thickness were studied.

引用

页码：1050 / 1055

页数：6

共 25 条

[1] Separation of hydrocarbons from natural gas using silicalite membranes [J].