Pyridyl anchoring squaraine as a near-infrared dye sensitizer for effective sensitized hydrogen production over a titanium dioxide photocatalyst in water medium

The acceleration of BODIPY dye-sensitized photocatalytic hydrogen production in aqueous ascorbic acid solutions using alkyl-chain formed second coordination sphere effects

“…We previously reported a squarinic dye sensitizer system with a very high AQY (12.5% @ 650 nm) but this system showed 10% deactivation in 30 hours. 8 The BODIPY system in this report not only has an activity comparable to that of AQY (1.4% @ 650 nm) in other reports but is also a stable photocatalytic hydrogen production system that does not undergo any decomposition even after 30 hours.…”

“…6,7 In dye-sensitized TiO 2 photocatalytic systems, dye molecules adsorbed on the surface of TiO 2 can enhance the light absorption ability of TiO 2 , thus improving the efficiency of the photocatalytic decomposition in water splitting. 8 Photocatalytic hydrogen production is a complex reaction. The catalyst properties can change the catalytic activity, and the catalyst environment can also greatly change the reaction rate.…”