Preparation and Characterization of Activated Carbon from Raw Red Macroalgae and Bio Char from Macroalgae

This article discusses the preparation and characterization of activated carbon by the combined method (combination of two methods of chemical activation by ZnCl 2 and physical CO 2 ) leads to essentially microporous coals with specific BET specific surfaces which can exceed 800 m 2 /g. It is generally obtained by the BET method which is based on the adsorption capacity (in vapor phase) of nitrogen at 77 K and the steric hindrance of the N2 molecule. Microporous activated carbon prepared from Moroccan red macroalgae can be used as excellent carriers for adsorbing small molecules like heavy metals and other organic molecules like pesticides. This work was devoted to the characterization of active carbon prepared from red macroalgae with H 3 PO 4 , ZnCl 2 , CO 2 , H 3 PO 4 / CO 2 , ZnCl 2 / by TFIR, BET and SEM.