METHOD FOR OBTAINING HIERARCHICALLY ORDERED INORGANIC PHOSPHATE STRUCTURES ON PHYLLOSILICATES

摘要

The present invention relates to a method for preparing hierarchically ordered structures of inorganic phosphate particles, homogeneously deposited on the surface of a phyllosilicate, which is characterized in that it comprises the following steps: a) obtaining an acid solution of precursor compounds of an inorganic phosphate; b) preparing a dispersion of particles of a phyllosilicate in aqueous medium and acidifying the phyllosilicate dispersion by adding at least one acid, thereby obtaining an acid dispersion; c) mixing the acid solution obtained in step a) with the dispersion obtained in step b); and d), with stirring, adding a base to the mixture obtained in step c) until the required pH value for precipitating the corresponding inorganic phosphate on the phyllosilicate particles has been achieved, resulting in a hierarchically ordered structure of homogeneously distributed submicrometric or nanometric inorganic phosphate particles supported on the phyllosilicate surface.

主权项

1. A method for preparing hierarchically ordered structures of inorganic phosphate particles, homogenously deposited on the surface of a phyllosilicate, wherein it comprises the following steps:
a) obtaining an acid solution of precursor compounds of an inorganic phosphate, b) preparing a dispersion of particles of a phyllosilicate in aqueous medium and acidifying the phyllosilicate dispersion by adding at least one acid, thereby obtaining an acid dispersion, c) mixing the acid solution obtained in step a) with the dispersion obtained in step b) d) with stirring, adding a base to the mixture obtained in step c) until the pH value required for precipitating the corresponding inorganic phosphate on the phyllosilicate particles is achieved, resulting in a hierarchically ordered structure of homogenously distributed submicrometric or nanometric inorganic phosphate particles, supported on the phyllosilicate surface.