Photocatalytic degradation of several VOCs (n-hexane, n-butyl acetate and toluene) on TiO2 layer in a closed-loop reactor

Residence time distribution analysis and kinetic study of toluene photo-degradation using a continuous immobilized photoreactor

“…23,[31][32][33] This model successfully explains the kinetics of reactions that occur between two adsorbed species (a free radical (i.e. 23,[31][32][33] This model successfully explains the kinetics of reactions that occur between two adsorbed species (a free radical (i.e.…”

Novel adsorption and photocatalytic oxidation for removal of gaseous toluene by V-doped TiO2/PU under visible light

“…For example, the use of adsorptive materials to adsorb VOCs only succeeds in transferring the contaminants to another phase, rather than eliminating them. Therefore, numerous studies have been conducted to investigate effective techniques, which are both economically feasible and actually remove the VOCs, rather than merely transferring them from one phase to another [9][10][11]. Among such methods, photocatalytic oxidation processes using TiO 2 and other semiconductors as photocatalysts have been extensively investigated [10][11][12].…”

“…Therefore, numerous studies have been conducted to investigate effective techniques, which are both economically feasible and actually remove the VOCs, rather than merely transferring them from one phase to another [9][10][11]. Among such methods, photocatalytic oxidation processes using TiO 2 and other semiconductors as photocatalysts have been extensively investigated [10][11][12]. TiO 2 is considered to be the most suitable photocatalyst because of its high photocatalytic activity, chemical stability, non-toxicity, relative inexpensiveness and availability [11].…”

“…The TiO 2 photocatalyst exhibited high removal efficiency of toluene and ethyl benzene under UV irradiation [13]. TiO 2 has a wide band gap energy (3.2 eV), thus it can only be activated by UV light, causing limited application of the photocatalyst for VOCs removal in the visible light region [10,11,16]. Therefore, numerous studies have been conducted to enhance the photocatalytic activity of pure TiO 2 to allow use of the photocatalyst even under visible light, which requires less energy consumption than the production of light in the UV region [16].…”

Photocatalytic Degradation of Styrene in Aqueous Solution: Central Composite Design Optimization

“…[2] Photocatalytic decomposition of organic pollutants using the semiconductor photocatalysts is one of the most attractive methods and may be more cost-effective than other conventional techniques because the semiconductor photocatalysts are inexpensive and capable of mineralizing most organic compounds effectively at ambient temperature and pressure. [3][4][5][6] Titanium dioxide (TiO 2 ) as an oxide semiconductor has been investigated extensively since 1980s and found to be very efficient photocatalyst due to its abundant availability and chemical stability. [7,8] As evident from the literature, no statistical study about photocatalytic degradation of styrene by design of experiment has been related.…”