Photocatalytic degradation of phenanthrene and pyrene on soil surfaces in the presence of nanometer rutile TiO2 under UV-irradiation

Photochemical degradation of PAHs in estuarine surface water: effects of DOM, salinity, and suspended particulate matter

“…It has been proposed in the literature that suspended particulate matter can influence the photodegradation rate of PAHs by hindering the light intensity and photosensitizing humic acid contained in the suspended particulate matter (Xia et al 2009;Dong et al 2010;Kim et al 2013). According to Fig.…”

“…PAHs may participate in the photodegradation process on the particle surface in addition to the photodegradation in the aqueous phase. Besides, suspended particulate matter may also affect PAH photodegradation in the estuarine water through influencing light intensity and DOM concentration in the aqueous phase (Dong et al 2010). For example, Xia et al (2009) reported that suspended particulate matter can influence the photodegradation rate of PAHs by hindering the light intensity and photosensitizing humic acid contained in the suspended particulate matter.…”

Heterogeneous photocatalytic degradation of phenanthrene in surfactant solution containing TiO2 particles

“…(9) and (10) to produce additional hydroxyl radicals under UV irradiation by titania without oxygen. But in this case, the photogenerated electrons and holes are easily recombined because there is no oxidant to trap the photogenerated electrons.…”

“…In recent years, heterogeneous photocatalytic degradation of PAHs or pesticides is one of the most attractive methods, which can be combined with the solar energy/artificial light to increase the degradation [3,[9][10][11][12][13]. Heterogeneous photocatalysis offers an oxidation capable of pollutant abatement under ambient condition via irradiation of some semiconductor solids [14], which can be used as photocatalysts suspended in the water effluent to be treated, or immobilised on various types of supports [15].…”

Degradation of polycyclic aromatic hydrocarbons in crumb tyre rubber catalysed by rutile TiO2under UV irradiation

“…The removal and degradation studies of PAHs in soil, water, and gas have attracted considerable attention in the past, and the main processes include adsorption, [5][6][7] extraction, [8,9] chemical oxidation, [10] sonication, [11][12][13] ozone oxidation, [14] electroremediation, [15] biodegradation, [16][17][18][19][20] and photodegradation. [21][22][23][24][25][26] Compared with the biodegradation method, photodegradation is more effective to eliminate some high molecular weight PAHs (more than three rings), which is mainly attributed to the fact that photodegradation preferentially attacks the tertiary carbon atoms. [27] Thus, photodegradation of PAHs has been given much emphasis recently.…”