Table 5.

The pollutants degradation based on the activation of O₂ by electro-Fenton process.

Cathodes	Anodes	Contaminants	Reaction conditions	O2 supply	ROS	Removal efficiency	TOC removal	Reference
FeCuC	BDD	BPA	[BPA]0 = 2.0 mg L−1, Na2SO4 = 50.0 μM, I = 30.0 mA, pH = 3.0	O2 aeration	H2O2, •OH	-	97.0%	[87]
GF-C	Pt	RhB	[RhB]0 = 60.0 mg L−1, Na2SO4 = 50.0 μM, j = 6.0 mA cm−2, pH = 3.0	O2 aeration	H2O2, •OH	99.0%	80.0%	[88]
Ti sheet	BiN3/MXene membrane	SMX	[SMX]0 = 10.0 mg L−1, Na2SO4 = 20.0 mmol L−1, I = 10.0 mA, pH = 3.0–9.5	O2 aeration	H2O2, •OH	>95.0%	60.0%	[91]
GA	Pt sheet	CIP	[CIP]0 = 50.0 mg L−1, Na2SO4 = 50.0 μM, j = 30.0 mA cm−2, pH = 3.0,	O2 aeration	H2O2, •OH	Almost 100.0%	91.0%	[92]
CrN4/MXene	Ti sheet	SMX	[SMX]0 = 10.0 mg L−1, pH = 6.8	O2 aeration	1O2	95.0%	61.2%	[94]
FE-ECM	Titanium plate	ATZ	[ATZ]0 = 20.0 μM, Na2SO4 = 100.0 mM, j = 2.0 mA cm−2, pH = 7.0	O2 aeration	H2O2, •OH, 1O2	93.1%	73.04%	[95]
Carbon aerogels	Pt foil	BPA	[BPA]0 = 10.0 mg L−1, Na2SO4 = 50.0 μM, pH = 3.0 and 9.0	O2 aeration	H2O2, 1O2, •O2−, •OH	98.0%	72.3%	[96]
MOF-SnO2@CF	Fe@CF membranes	PRO	[PRO]0 = 5.0 mg L−1, Na2SO4 = 10.0 μM, pH = 3.0	O2 aeration	H2O2, 1O2, •O2−, •OH	97.5%	83.0%	[97]

Abbreviations: FeCuC, iron-copper-embedded carbon aerogel; BDD, boron-doped diamond; GF-C, graphite felt-C; GA, graphene aerogel; FE-ECM, Fe(II)-modulated FeCo LDHs on a conductive OCNT-precoated membrane; MOF-SnO₂@CF, metal organic frameworks-SnO₂@ carbon fibers; Fe@CF, Fe@carbon fibers; BPA, bisphenol A; RhB, rhodamine B; SMX, sulfamethoxazole; CIP, ciprofloxacin; ATZ, atrazine; PRO, propranolol.