Characterization and activity of Pd-modified TiO2 catalysts for photocatalytic oxidation of NO in gas phase

Photocatalytic degradation of phenol in water on as-prepared and surface modified TiO2 nanoparticles

“…SEM image of (a) the as-prepared TiO2, TEM images of (b) the as-prepared TiO2, (c) S-TiO2, (d) the hydrogenated blue TiO2, HRTEM images of (e) the as-prepared TiO2, (f) S-TiO2, (g) the hydrogenated blue TiO2. 1 1) and (2 0 4) spacing [25][26][27][28][29] and small portion of rutile (R) ( 1 1 0), (1 0 1) and (3 1 0) spacing [25][26][27][28]30,31], respectively. The broadening of the peak at the 25.023 • was chosen to estimate the grain size of the sample which was approximately 21 nm by applying Scherrer's formula [21].…”

Photocatalytic degradation of malathion in aqueous solution using an Au–Pd–TiO2 nanotube film

“…Consequently, the recombination between photoelectrons and holes was decreased and a high quantum yield could be obtained [9,10,17]. In addition, the platinum group metal Pd has attracted great attention [11,12,18,19]. Pd deposited on TiO 2 could not only enhance the photocatalytic performance and promote O 2 to scavenge photogenerated electrons, but also significantly inhibit photocatalyst deactivation [18].…”

“…Pd deposited on TiO 2 could not only enhance the photocatalytic performance and promote O 2 to scavenge photogenerated electrons, but also significantly inhibit photocatalyst deactivation [18]. Pd-modified TiO 2 has been successfully used in gas-phase photocatalysis [18,19] and wastewater treatment [11]. It was reported that, compared with the corresponding gold or palladium monometallic catalysts [20,21], the combination of them exhibited an obvious synergistic effect and greatly enhanced their catalytic activity and selectivity [22][23][24].…”

Deactivation mechanism of PtOx/TiO2 photocatalyst towards the oxidation of NO in gas phase

“…The experiment setup and operating conditions for photocatalytic activity tests were the same as that in our previous reports [20,21]. All the photocatalytic activity experiments were carried out in a continuous setup.…”