A Clay-Metal Complex Ultrathin Film as Prepared by the Langmuir-Blodgett Technique

Abstract

A clay-metal complex hybrid film with the thickness of 5.0 ± 1.0 nm was prepared by the Langmuir-Blodgett technique. According to the method, a hectorite clay dispersed in an aqueous subphase was adsorbed by a cationic monolayer of amphiphilic Ru(II) complex. The surface structure of a film deposited onto a hydrophilic glass plate was studied with an atomic force microscope (AFM).

Ultrathin hybrid films of clay minerals

“…Firstly, one can simply use an amphiphilic cationic complex in the spreading solution and a dilute aqueous clay dispersion as subphase (method I). [45][46]48,51,65,74,75 The second method (method II) makes use of the ion exchange capacity of the hybrid monolayer. 63 This method is illustrated in Fig.…”

Hybrid Langmuir–Blodgett monolayers containing clay minerals: effect of clay concentration and surface charge density on the film formation

“…In this approach the clay particles are allowed to adsorb from the dispersion onto the surfactant monolayer. 12,13 The incorporation of single lamellae of clay minerals becomes possible via this method and multilayered hybrid structures have been prepared by successive depositions. 14,15 PCCP www.rsc.org/pccp DOI: 10.1039/b405862c…”

Hybrid polymer-inorganic nanocomposites

“…For example, LBF based on amphiphilic Ru 2+ complexes was immobilised on a monolayer of hectorite. 475 In this case, lamellar films and polylayers were formed. Langmuir ± Blodgett films with a specified organisation either were formed directly on the surface of colloidal particles or were formed on the water surface and then were transferred to a support of nanosized particles with the use of the Langmuir ± Blodgett technique.…”