Preparation method for porous graphite oxide

• Main Authors: FENG HANGKONG, GUO RUIBIN, AN JUNNIAN, WANG RUIJUAN, MO ZUNLI, ZHANG HONGJUAN, YAN MIN
• Format: Patent
• Language: Chinese; English
• Published: 20.11.2018
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention provides a preparation method for porous graphite oxide. The preparation method includes dispersing graphite oxide in a mixed solution of concentrated sulfuric acid and concentrated nitric acid, adding potassium chlorate, performing reaction for 72-75 h in a stirring manner at room temperature, and obtaining a uniform graphite oxide reaction solution; dispersing the reaction solutionin ultrapure water, and adjusting the pH of the solution to 6.5-7.5 by using a sodium hydroxide solution; and centrifuging the obtained produce, collecting sediment, washing the sediment with ethanoland the ultrapure water, performing freeze drying so that the graphite oxide with a porous structure can be obtained. Tested and shown by a scanning electron microscope, the prepared the porous structure of the graphite oxide is clear, and lamella is large; the porous graphite oxide has a rich and unique pore structure and rich pores; the porous graphite oxide has the advantage of graphite oxide,and also has the character