Production method of porous materials

A production method of porous materials comprising the steps of:

• Step 1:
• providing a micro-plasma system comprising:
• an anode;
• a cathode, and
• a reaction solution;
• wherein the anode is at least partially immersed in the reaction solution, the cathode is a tube with its opening positioned near and above the reaction solution, and a gas is introduced into the tube;
• Step 2:
• applying a current to the micro-plasma system for a duration of 0.5 to 24 hours, thereby forming a porous material in the reaction solution;
• wherein:
• the reaction solution in Step 1 comprises an amine precursor, an aldehyde precursor, and an electrolyte, and the reaction solution does not include any toxic or volatile organic solvents;
• the concentration of the amine precursor ranges from 5 to 20 mM and includes 1,3,5-tris(4-aminophenyl)benzene;
• the concentration of the aldehyde precursor ranges from 5 to 30 mM and includes one or a combination of benzene-1,3,5-tricarbaldehyde, terephthalaldehyde, and 4,4′-biphenyldicarboxaldehyde;
• and
• the concentration of the electrolyte ranges from 1 to 20 mM and includes acetic acid.