PROCESS FOR PRODUCING A SILICA NANOPARTICLE HYDROGEL, SILICA NANOPARTICLES AND SILICA NANOPARTICLES WITH ADSORBED IONS; PRODUCTS PRODUCED AND THE CORRESPONDING USES THEREOF

摘要

The present invention relates to a process for producing silica-based nanoproducts, using sodium silicate as the source of silicon and organic acid as a catalyst for the hydrolysis and condensation reactions. The final products are described as being a silica nanoparticle hydrogel and silica nanoparticles, which can have ions adsorbed to the silica surface thereof. One of the numerous uses for said particles is as an adsorbent material, mainly for metal ions, some of which have fungicidal/bactericidal properties. With the adsorption of specific metal ions to the silica nanoparticles, products that have bactericidal and fungicidal activity can be produced, which can be used in various agricultural sectors.