Pigments Based on Mica Coated with Oxide of Metals

In situ loading of palladium nanoparticles on mica and their catalytic applications

“…Development of mica-containing functional materials has attracted considerable attention in recent years. For instance, mica can be used as a substrate for conducting mica composites [22][23][24], as colored pigments [25][26][27][28], biosensors [29][30][31][32], potential catalysts containing gold or palladium nanoparticles [33,34], and so on. Ferrero et al immobilized nanometer sized gold particles on mica by atom deposition, however, they did not study the catalytic property of the resultant material [33].…”

Precursor content assessment and its influence on the optical interference of a nano-sized mica-hematite pearlescent pigment

“…Stengl et al [3] have reported that Fe(OH) 3 precipitates on mica through the reaction (3), however, X-ray diffractometry (not shown here) demonstrates that the same reaction led to precipitate FeOOH (goethite) in the proposed experiment. The final product was obtained by calcining the goethite at 800°C:…”

“…The urea was hydrolyzed by heating the suspension at about 82°C and keeping it at the same temperature that caused the following reaction [3]:…”

“…Since, the highly refractive index layers cover less refractive index substrates (mica flake), it results in a significant pearlescent effect due to the optical interference. With high refractive indices of the layer, once the light encounters the metal oxide layer, the main portion of the light is reflected and only a small portion of it is transmitted [1][2][3][4].…”

Zinc Oxide Prepared by Homogeneous Hydrolysis with Thioacetamide, Its Destruction of Warfare Agents, and Photocatalytic Activity

“…Homogeneous precipitation in aqueous solution for preparation of spherical particles of ferrihydrite, , spherical particles of photocatalytic anatase, , nanosized anatase or ferrihydrite for decomposition of warfare agents, and pigments based on mica coated with oxides of metal , was used.…”