Method for increasing mesoporous rate in porous carbon

The invention relates to a method for increasing mesoporous rate in porous carbon, which belongs to the interdisciplinary field of material science and environmental science. The porous carbon is adopted as a raw material, and is dipped by hydrogen peroxide, secondarily carbonized and secondarily activated, so that the mesoporous rate of the porous carbon is improved. Specific steps include as follows: (1) cleanly flushing the porous carbon by distilled water and drying the porous carbon; (2), dipping the dried porous carbon in the hydrogen peroxide, filtering and then drying the porous carbon; (3) secondarily carbonizing the dipped and dried porous carbon under the inert atmosphere; and (4) secondarily activating the carbonized porous carbon and preparing the porous carbon with the increased mesoporous rate. Organic pollutants in water can be excellent removed by the porous carbon with the increased mesoporous rate, and the method is favorable for prompting industrial application of the porous carbon in wate