Preparation method for graphite oxide with low oxidizability
A technology of oxidation degree and graphite, applied in the field of materials, can solve the problems of no research on GO stripping behavior, long time, unfavorable production, etc.
Inactive Publication Date: 2017-05-31
QINGDAO ZHIXIN BIOLOGICAL TECH CO LTD
0 Cites 2 Cited by
AI-Extracted Technical Summary
Problems solved by technology
The invention relates to a preparation method for graphite oxide with low oxidizability. The preparation method comprises the following steps: adding 50 ml of concentrated sulfuric acid and 0.5 g of graphite powder into a three-neck flask, carrying out uniform mixing under stirring, then carrying out cooling to 0 DEG C in an ice-water bath, slowly adding 0.5 to 1.5 g of potassium permanganate, carrying out slow heating to 35 DEG C, allowing the above substances to undergo a reaction for 2 h, then carrying out slow heating to 70 DEG C, and carrying out a reaction for half an hour until potassium permanganate is completely consumed so as to obtain GO with low oxidizability; after completion of the reaction, adding a great amount of ice water and carrying out centrifugal sedimentation; then carrying out washing with an aqueous hydrochloric acid solution with a concentration of 10% six times and washing with deionized water three times; carrying out centrifugation and collecting a product; and drying the product in a vacuum drying oven at 60 DEG C so as to obtain graphite oxide with low oxidizability. Compared with the Brodie method and the Staudenmaier method, the preparation method has higher efficiency and does not give out toxic gas in the process of preparation. Since the speed of a reaction of potassium permanganate with graphite is fast, the purpose of reaching a low oxidation degree of GO is achieved by changing the usage amount of an oxidizing agent.
IonPotassium permanganate +9
- Experimental program(3)
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.