The strong electronic interaction between heterogeneous composite catalysts facilitates the charge separation and transfer, which is favorable for the enhancement of catalytic performance. Herein, the rape straw derived biochar (BC) supported ultrafine Co3O4 composites were synthesized for tetracycline hydrochloride (TC) degradation via activating peroxymonosulfate (PMS), and the built-in electric field (BIEF) driven catalytic degradation mechanism was proposed. The results indicated that 20 wt% Co3O4/BC catalyst could achieve 90% degradation e...
