Constructing iron phthalocyanine nanosheets/electrospun carbon nanofibers heterostructures with enhanced photocatalytic activity under visible light irradiation

摘要

In this work, a novel heterostructures photocatalyst was constructed by loading 2,9,16,23-tetranitrophthalocyanine iron (II) (TNFePc) nanosheets on one-dimensional carbon nanofibers (CNFs). The coverage density of TNFePc nanosheets could be tailored by changing the precursor concentration for fabrication of TNFePc/CNFs heterostructures. These TNFePc/CNFs heterostructures exhibited enhanced visible light photocatalytic activity than that of pure TNFePc. Photoelectrochemical property test showed TNFePc/CNFs heterostructures exhibited an increased current density, about 1.8 times than that of pure TNFePc, which indicated the recombination of the photogenerated charge carrier was inhibited greatly in the TNFePc/CNFs heterostructures. Notably, the TNFePc/CNFs heterostructures could be easily recycled without a decrease of the photocatalytic activity due to the large length to diameter ratio of the one-dimensional CNFs. (C) 2016 Elsevier B.V. All rights reserved.