Ultra-light high-strength aerogel material with electromagnetic shielding function and preparation method thereof

The invention relates to an ultra-light high-strength aerogel material with an electromagnetic shielding function and a preparation method thereof.The method comprises the steps that titanium oxide nano powder, an alkaline solution and carbon nano tube dispersion liquid are mixed in deionized water, and a mixed solution is obtained through stirring and ultrasonic treatment; placing the mixed solution in a closed container for hydrothermal reaction to obtain a semi-solid gel block; dipping the gel block in an acid solution for pickling, and washing the pickled gel block with water; the washed gel block is subjected to a solvent replacement process and a supercritical drying step, and nanowire aerogel is prepared; carrying out heat treatment on the nanowire aerogel; and carrying out a gas-phase hydrophobic process on the nanowire aerogel block subjected to heat treatment, so as to prepare the super-hydrophobic ultra-light nanowire aerogel material. According to the preparation method, the carbon-doped titanium