Rice Husk as Precursor for Silicon Oxide Nanoparticles: Synthesis and Characterization

Abstract

Author: Nsikak Bassey Essien

Received: 19 April  2024/Accepted: 09  August 2024

Traditionally, SiONPs have been synthesized using conventional methods involving the use of toxic chemicals and high-energy processes. These methods raise concerns regarding environmental impact and production costs. In recent years, a growing emphasis has been placed on developing eco-friendly and cost-effective approaches for SiONP synthesis. Rice husk, a by-product of rice cultivation, represents a significant source of agricultural waste. It is estimated that over 100 million tons of rice husk are generated globally each year (Ahmad et al., 2011). This abundant waste material presents a compelling opportunity for the development of sustainable SiONP synthesis methods.Rice husk is a rich source of silica (SiO2), a key component of SiONPs. Notably, the silica content in rice husk can vary between 50-70% by weight, depending on the rice variety and geographical location (Ahmad et al., 2011). This inherent characteristic makes rice husk a promising bioresource for SiONP synthesis