Study on the synthesis of β-SiC nanoparticles from diamond-wire silicon cutting waste.

Large amounts of silicon have been wasted as silicon cutting waste (SCW) during the silicon wafer production process, which increases the cost of photovoltaic solar cells and causes environmental pollution. In this paper, an innovative approach for producing β-SiC nanoparticles by using SCW as silicon source and sucrose as carbon source is reported. The synthesized β-SiC nanoparticles were characterized by XRD, FTIR, SEM, TEM, Raman, PL and DSC. The results showed that β-SiC nanoparticles were successfully prepared with a particle size ranging from 40 to 50 nm, and have special photoluminescence as well as good thermal stability. The recycling of SCW can not only solve the environmental pollution issue but also benefits the economy.