Method for preparing high-strength graphite oxide aerogel

The invention discloses a method for preparing high-strength graphite oxide aerogel. The method is characterized by comprising the following processes of: 1) matching graphite oxide powder and deionized water into a water solution with the concentration being 0.1-10mg/ml, carrying out ultrasonic oscillation for 0.1-5 hours, and obtaining a graphite oxide water solution with good dispersion; 2) adding 10-500ml graphite oxide water solution which is allocated in a water heat kettle, treating for 1-24 hours under the temperature of being 90-200 DEG C, and preparing the graphite oxide aerogel; and 3) putting the prepared graphite oxide aerogel into ammonia water, dipping for 1-36 hours under the temperature being 0-150 DEG C, freezing and drying, and obtaining the high-strength graphite oxide aerogel. The method disclosed the invention has the advantages that the preparing method is simple, the mechanical strength of the graphite oxide aerogel can be increased through simple ammonia water treatment on the basis of the graphite oxide aerogel, the energy consumption is low, no pollution exists, a microcosmic porous structure is matched, and the graphite oxide aerogel has a great application prospect in adsorption and catalysis.