Efficient removal of sulfamethazine from irrigation water using an ultra-stable magnetic carbon composite catalyst

A stable Fe/Co bimetallic modified biochar for ofloxacin removal from water: adsorption behavior and mechanisms

“…37 The peaks in the O 1s spectra corresponded to C–O and CO bonds, respectively. While the peak fitted at 530.27 eV in the FMBC corresponded to O–M bonds, 38 indicating that metal oxides were produced during the modification process, which was consistent with the presence of CoFe 2 O 4 in the above SEM and XRD. Fig.…”

“…The peaks of FMBC at 2 θ = 18.29°, 30.08°, 35.44°, 43.06°, 53.44°, 56.97°, 62.58°, and 74.01° were characteristic peaks of (111), (220), (311), (400), (422), (511), (440) and (533) in CoFe 2 O 4 [JCPDS: 22-1086], 37 and peaks at 2 θ = 44.72°, 65.10°, and 82.42° were characteristic peaks of (110), (200) and (211) in Co 3 Fe 7 [JCPDS: 48-1817]. 38 These peaks of FMBC were stronger and sharper, manifesting the better crystallinity of CoFe 2 O 4 and Co 3 Fe 7 in FMBC. The XRD results showed that Fe and Co were successfully introduced into the FMBC, further confirming that the metallic small particles and micro-flowers present in the above SEM were the two elements Fe and Co in the form of metal oxides and alloys on the FMBC.…”