Modified zinc oxide nanoparticles are formed by method placing precursor and silica modifier on organic solvent and growing until spectral absorption edge reaches the desired value

摘要

Modified zinc oxide nanoparticles comprise a particle size of 3-50 nm as determined by particle correlation spectroscopy (PCS) or transmission electron microscopy and are modified with silica by a process in which at least one precursor is placed in an organic solvent and grown by addition of at least one modifier, that is a precursor for silica, until the absorption edge in the UV/visible spectrum of the reaction solution reaches the desired value when the process is ended. Independent claims are also included for the following: (A) A dispersion comprising nanoparticles as above; (B) A method of producing the nanoparticles as above;and (C) UV-stabilized polymers as above.