Design and fabrication of petal shape C_3N_4/PPy hybrids with enhanced electron transporting and light harvesting capability

摘要

Carbon nitride (C3N4) is an attractive materials with high potential in the application fields of energy store, energy conversion, and catalyzing photoelectrochemical reactions, yet its application is restricted due to fast electron-hole recombination and limited light harvesting capability (lambda 460 nm). In this work, we demonstrate an easy-to-handle strategy for synthesizing petal shape C3N4/PPy hybrids which "inherited" the merits of C3N4 and PPy. Charge transfer efficiency was enhanced 12.4 times due to effective hybridizing between C3N4 and PPy when compared with pristine C3N4. Besides, the petal shape C3N4/PPy hybrids exhibited wide light harvesting range from 400 nm to 650 nm, and displayed larger photocurrent than pristine C3N4 when driven by visible light. (C) 2020 Elsevier B.V. All rights reserved.