FT-IR–ATR as a tool to probe photocatalytic interfaces

Hybrid Semiconducting Materials: New Perspectives for Molecular‐Scale Information Processing

“…Catechol usually binds to the surface of titanium dioxide as catecholate substituting surface hydroxyl groups [160,161]. Two main structures of surface complexes have been confirmed: bidentate chelating I I I II II II III III Ti Ti Ti Ti Ti Ti Ti Ti Ti Ti Ti Ti and bidentate bridging [160,162]. In the case of catechol adsorption onto rutile (110) surface [160] or anatase [163] bidentate bridging complexes prevail because of a similar distance between catechol groups and adjacent surface Ti IV centers (Figure 7.22).…”

Anatase nanoparticles surface modified with fused ring salicylate-type ligands (1-hydroxy-2-naphthoic acids): A combined DFT and experimental study

“…In the last two decades, the surface modification of commercial TiO 2 (Degussa P25, d $ 30 nm) with benzene derivatives mainly catechol [11][12][13][14][15][16][17] and salicylic acid [18][19][20][21][22][23][24] has been studied. Several papers have investigated CT complex formation between catecholate [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] and salicylate [27,[36][37][38]40,41] type ligands and colloidal TiO 2 nanoparticles (d $ 45 Å), where the binding of modifiers induces the surface reconstruction of the nanoparticles.…”

Photoinduced electron transfer and photodegradation of malonic acid at Au/TiO2 investigated by in situ ATR-IR spectroscopy

“…Notwithstanding the technique's potential has been demonstrated, its application to study photocatalytic degradation of organic pollutants are still quite limited in number. ATR-IR has been used in the past to study the fate of organic molecules adsorbed on the TiO 2 surface upon UV exposure [9,10]. We investigated the adsorption and UV light photocatalytic degradation routs of dicarboxylic acids at TiO 2 [11][12][13].…”