SiC/carbonyl iron nanometer composite material prepared from agricultural wastes through microwave composite and method thereof

The invention discloses a SiC/carbonyl iron nanometer composite material prepared from agricultural wastes through microwave composite and a method thereof; the core layer of the SiC/carbonyl iron nanometer composite material is SiC; and the SiC/carbonyl iron nanometer composite material is wrapped by carbonyl iron nanometer particles through the microwave composite. The method comprises the following simple steps of: firstly. processing the agricultural wastes into silicon carbon powder with SiO2 and carbon as main components through thermal decomposition or acid base; then carrying out metal hot or high-temperature reaction on the silicon carbon powder to obtain the SiC; and finally. covering the /carbonyl iron nanometer particles on a product through a microwave composite technology toobtain the SiC/carbonyl iron nanometer composite material. The SiC/carbonyl iron nanometer composite material is provided with a nanometer porous structure and a larger specific surface area and has the electrical loss proper