Heterogeneous photodegradation of 1-naphthol with natural iron oxide in water: influence of oxalic acid

Removal of 1-naphthol from Water via Photocatalytic Degradation Over N,S-TiO2/ Silica Sulfuric Acid under visible Light

“…The 1-naphthol kinetic reaction was thus investigated from 0 to 50 min and assessed based on the second-order kinetics. The previous literature has reported photo-oxidation degradation kinetics of 1-naphthol during degradation time and they report second order kinetics which is in good agreement with the results of this study [31][32][33].…”

Organic matter and iron oxide nanoparticles: aggregation, interactions, and reactivity

“…Hydroxyl radicals formed through a photo-induced Fenton reaction enhance the photocatalyst ability of iron oxide nanoparticles, and this process could be exploited as a viable remediation technology. 173 Common hydroxyl radical sources include H 2 O 2 174 and oxalic acid, [175][176][177][178][179][180][181][182] with successful contaminant degradation observed with goethite, 174,178 hematite, [175][176][177][178]180,182 maghemite, [180][181][182] and lepidocrocite. 179 Rates of contaminant degradation may increase in the presence of OM due to the formation of hydroxyl radicals by photo-irradiation of the OM.…”

Goethite (α‐FeOOH) photocatalytic activity at natural concentrations by the addition of H2O2 at neutral pH and the simultaneous presence of fluoride and bicarbonate

“…Goethite is a visible light-absorbing iron (hydr)oxide with apparent promising photocatalytic activity to remove both bacteria and organic pollutants from water [9][10][11][12][13][14][15][16]. However, despite these interesting photocatalytic features, some authors have argued that goethite exhibits high electron-hole recombination since its conduction band potential is too positive (+0.24 V vs. NHE at pH 7.0) compared, for example, with that of molecular oxygen (−0.33 V vs. NHE), preventing an efficient electron transfer and thus increasing charge carrier recombination [17,18].…”