Modulating surface charges of bismuth tantalum oxychloride nanoplates for promoting photogenerated charge separation

Abstract

Modulation of anisotropic facets and surface charge properties of semiconductor photocatalysts play significant roles in accelerating the photogenerated charge separation in heterogeneous photocatalysis. Herein, taking Bi4TaO8Cl (BTOC) as an exemplar,...

Advances in the structural engineering of layered bismuth-based semiconductors for visible light-driven photocatalytic water splitting

“…41 Besides, surface pretreatment under different pH conditions also allows the selective loading of cocatalysts on the different facets of Bi 4 TaO 8 Cl. 42 Given the decent performance of Bi 4 MO 8 X (M = Nb, Ta, X = Cl, Br) towards photocatalytic water oxidation, Z-scheme overall water splitting systems using Bi 4 MO 8 X as oxidation photocatalysts have been demonstrated widely. The simultaneous evolution of H 2 and O 2 with a stoichiometric ratio demonstrate the successful achievement of overall water splitting, presenting a promising candidate for solar energy conversion.…”

Band engineering of layered oxyhalide photocatalysts for visible-light water splitting

“…By utilizing these features, the reaction site of reduction and oxidation can be separated in different planes, by modifying the synthesis and the way of loading cocatalysts. 152–154…”

How Matrixes Influence Room Temperature Ultralong Organic Phosphorescence: 4-Dimethylaminopyridine vs Carbazole Derivative

“…To our surprise, all of the doping systems at DMAP show a longer lifetime and weaker phosphorescence intensity, while all of the doping systems at ISO2Cz feature a shorter lifetime and higher phosphorescence intensity (Figure b). On carefully analyzing the single crystals of two matrixes (Figures S46–S47), we found that resemblant chemical structures of guests and ISO2Cz enable them to approach each other and interact with each other via a variety of interactions, thus facilitating the charge separation (CS) and charge recombination (CR) process. − The HOMO-LUMO energy levels of the guest match well with the ones of ISO2Cz, which significantly promotes the efficiency of the CS and CR process. To our best knowledge, this work is a systematic study on how matrixes influence the RTUOP of guest-matrix doping systems and may give deep insight into the development of organic phosphorescence.…”