Assembling γ-graphyne surrounding TiO<sub>2</sub> nanotube arrays: an efficient p–n heterojunction for boosting photoelectrochemical water splitting
Dong Qiu, Chengli He, Yuxuan Lu, Qiaodan Li, Yang Chen, Xiaoli Cui
Abstract
from 0.51 to 1.16 ms. The improvement arises from moderate γ-graphyne modification, contributing to broadened light absorption, the suppressed recombination of electron-hole pairs, an increase in charge transfer, and a higher injection efficiency of surface electrons. This work provides a reliable approach for the utilization and conversion of sustainable solar energy.
Topics & Concepts
GraphynePhotocurrentHeterojunctionMaterials scienceWater splittingPhotocatalytic water splittingPhotocatalysisNanotubeElectronNanotechnologyOptoelectronicsPhotocathodeEnergy conversion efficiencyChemical engineeringChemistryCatalysisGraphenePhysicsCarbon nanotubeQuantum mechanicsEngineeringBiochemistryAdvanced Photocatalysis TechniquesElectrocatalysts for Energy ConversionCopper-based nanomaterials and applications