Antibacterial activated carbons prepared from pitch containing organometallics Original Research Article

A simple method for the preparation of antibacterial activated carbons was reported. The antibacterial activated carbons uniformly contain metal oxides, i.e. CaO, MgO, NiO, CoO and ZnO. These activated carbons were readily prepared by steam activation of pitch containing organometallics, i.e. CaI2, t-BuMgBr, Ni(acac)2, Co(acac)3, and Zn(acac)2. The antibacterial activities for B. subtilis, S. aureus, and E. coli were estimated by the growing inhibitory effect in the solutions containing activated carbons and by haloes at surrounding of activated carbons on agar. The CaO, MgO, CoO, and ZnO dispersed activated carbons exhibited obviously the antibacterial activity for B. subtilis both in the solutions and on agar. The MgO and CoO dispersed ones exhibited a growing inhibition effect for S. aureus. On the other hand, no inhibitory effect was observed for the growing of E. coli.