Methods for the Preparation of Silica and Its Nanoparticles from Different Natural Sources

Biol Trace Elem Res. 2023 Dec;201(12):5871-5883. doi: 10.1007/s12011-023-03628-w. Epub 2023 Mar 20.

Abstract

Silica (SiO2), a component of the earth's crust, has been in use for many nanotechnological applications. This review presents one of the newest methods for safer, more affordable, and more ecologically friendly production of silica and its nanoparticles from the ashes of agricultural wastes. The production of SiO2 nanoparticles (SiO2NPs) from different agricultural wastes, including rice husk, rice straw, maize cobs, and bagasse, was systematically and critically discussed. The review also emphasizes current issues and possibilities linked with contemporary technology to raise awareness and stimulate scholars' insight. Furthermore, the processes involved in isolating silica from agricultural wastes were explored in this work.

Keywords: Agricultural waste; Nanotechnology; Renewable; Silica; Silica nanoparticles; Synthesis.

Publication types

  • Review

MeSH terms

  • Agriculture / methods
  • Nanoparticles*
  • Nanotechnology
  • Oryza*
  • Silicon Dioxide

Substances

  • Silicon Dioxide