Black SiO2 nanoparticles obtained by pyrolysis of rice husk

Rapid pyrolysis at high temperatures is a promising process to obtain black SiO2 nanoparticles, which can be applied, for their characteristic color, in different areas, such as cosmetics, graphite, paints, ceramics and polymer industry (thermoplastics, rubber and tires). In this work, the physico-chemical and toxicological characteristics of rice husk (RH) and rice husk ash (RHA) pyrolysis were investigated. The main characteristic of the...