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JOURNALS // Mendeleev Communications // Archive

Mendeleev Commun., 2021 Volume 31, Issue 5, Pages 715–717 (Mi mendc1033)

This article is cited in 1 paper

Communications

Efficient production of nanoporous silicon carbide from rice husk at relatively low temperature

J. Gao, L. Li, J. Liu, F. Liu, Ya. Han, X. Zhu, K. Ma

Heze University, Heze, Shandong, China

Abstract: Nanoporous silicon carbide with a specific surface area of up to 186.45 m2 g−1 has been efficiently synthesized from waste rice husk using a magnesiothermic reduction at 950 °C as a key step. Throughout the entire process, the recovery rates of silicon, potassium and phosphorus from rice husk can reach 88.46, 91.5 and 65.5%, respectively. Turning rice husk waste into a real treasure, this promising method for producing porous SiC protects the environment and brings economic benefits.

Keywords: rice husk, nanoporous silicon carbide, high purity, magnesiothermic reduction, naturally porous structure, phosphorus–potassium compound fertilizer.

Language: English

DOI: 10.1016/j.mencom.2021.09.041



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