Catalytic ceramic nanofiber membrane coupled with ozonation for degradation of sulfamethoxazole: Critical parameters, mechanisms and applicability

•Catalytic ceramic nanofiber membrane was applied for catalytic ozonation of SMX.•Up to 89% of SMX was removed constantly during a 1-h continuous catalytic filtration.•C-CNM coupled with ozonation had high removal efficiency of SMX in real waters.•The presence of Cl− and H2PO4− inhibited SMX removal while HCO3– enhanced removal.•1O2, ·OH and O2·− were the active species in SMX degradation.