Catalyst/adsorbent Reaction conditions Observation Reference As-synthesized CuO•Fe3 O4 /SiO2 /H2 O2 , Fenton-like catalyst 93.3% of dye was removed within 80 min and 55.1% in the third cycle This work Fe2 O3 •SiO2 /H2 O2 , Fenton-like catalyst 98.5% of dye was removed within 80 min and 86.7% in the third cycle [1 ] Sodium alginate/Fe3 O4 , Fenton-like catalyst 95% of BPA was removed within 120 min [69 ] Al, Fe-pillared clays, Fenton-like catalyst 97.5% of dye was removed within 240 min [70 ] Powder-activated carbon/Fe3 O4 , Fenton-like catalyst 96.12% of metronidazole was removed within 90 min [71 ] Fe electrode; electro-Fenton 100% of diazinon was removed within 34.49 min [72 ] SS316/β -PbO2 anode, electro-Fenton, and sono-electro-Fenton 92% of diazinon was removed; 73.2% of COD and 67.4% of TOC were reduced after 75 min [73 ] SS316/β -PbO2 , Fenton, and electro-Fenton Oxytetracycline was removed at 84.7%, 73.4%, and 98.2% in electrochemical, Fenton, and electro-Fenton processes, respectively, after 42 min [74 ] 3D/SEF/PAC/Fe3 O4 , sono-electro-Fenton 96.2% of 2,4-dichlorophenoxyacetic acid was removed, and 92.31% of COD and 86.5% of TOC were reduced after 60 min [75 ] Fe electrode-sodium persulfate, electro-Fenton 95% of dye was removed, and 57.14% of COD was reduced after 48.5 min [10 ] Graphite/β -PbO2 anode, electrochemical degradation 96.2% of methylene blue was removed after 50 min [13 ] UVC/Na2 S2 O8 /Fe2+ 97% of dimethyl phthalate was removed, and 64.2% of TOC was reduced within 90 min [25 ] UV/ZnO, photocatalyst 94.2% of phenol was removed after 30 min [22 ] Au/ZnO/H2 O2 photocatalyst 99.2% of dye was removed after 30 min [76 ] Magnetic zeolite nanocomposite (MZNC) ( 96.12% of dimethyl phthalate was removed within 20 min, and the removal efficiency was 70.63% in the tenth cycle [28 ] Magnetic iron oxide/graphene oxide (MGO), adsorption 100% of diethyl phthalate was removed within 3.723 min [29 ] GO-Fe3 O4 , adsorption 89.94% of 2,4-dinitrophenol was adsorbed, and the adsorption of the reuse adsorbent in both systems after 10th consecutive cycles was reduced by about 22% [30 ] Clinoptilolite zeolite/Fe3 O4 nanoparticles, adsorption 99% of dye was removed after 45 min [11 ] Lignin-containing cellulose (LCNF), adsorption 99% of Pb was removed after 60 min [77 ]
