Photodegradation of phenol by UV/TiO2 and Vis/N,C-TiO2 processes: Comparative mechanistic and kinetic studies

Preparation of cerium-doped ZnO hierarchical micro/nanospheres with enhanced photocatalytic performance for phenol degradation under visible light

“…In addition to the above-mentioned main compound, the peaks at RT 2.2, 2.6 and 3.3 min could be assigned to hydroquinone, resorcinol and benzoquinone intermediates, respectively when compared with the standard chemicals. This identification was also consistent with that reported in other studies [39][40][41]. The proposed photodegradation pathways are shown in Supplementary material Fig.…”

Photocatalytic degradation of chlorophenols on TiO2-325mesh and TiO2-P25. An extended kinetic study of photodegradation under competitive conditions

“…This P 1 intermediate was also the main product observed when the degradation of the individual 4-CP was carried out under the same experimental conditions. Also, the presence of hydroxyl products indicates the activation of phenol molecule with OH • radical, as stated by several authors for the degradation of 4-CP [3,22,[42][43][44]. The P 2 intermediate product formed during the UVirradiation of the phenol mixture follows a similar pathway than that above described for the photoinduced degradation of 4-CP.…”

Advances in Heterogeneous Photocatalytic Degradation of Phenols and Dyes in Wastewater: A Review

“…This behavior was attributed to its anatase crystalline framework, low electron-hole recombination rate, and high absorbance in the visible light. In contrast to P25 TiO 2 , photocatalytic activity of N, C-doped TiO 2 was four times higher for the degradation of phenol under visible light (λ>400 nm) irradiation (Gorska et al 2009a). The degradation rate of RB by La-doped-TiO 2 was higher compared with undoped TiO 2 for all the calcination temperature investigated (Peng et al 2005).…”