title: Facile Electrospinning Synthesis of Carbonized Polyvinylpyrrolidone (PVP)/g-C3N4Hybrid Films for Photoelectrochemical Applications.
abstract: The film-forming ability and conductivity of graphitic carbon nitride (g-C3N4) are still unsatisfying, despite much progress having been made in g-C3N4-related photocatalysts. New methods for synthesizing g-C3N4films coupled with excellent conductive materials are of significance. Herein, a facile method for synthesizing novel carbonized polyvinylpyrrolidone (PVP)/g-C3N4(CPVP/g-C3N4) films have been developed through an electrospinning technique. Nanocarbons are generated by in situ carbonization of PVP in the films, which could enhance the photoelectrochemical (PEC) performance of the films due to its good conductivity. The coverage of the CPVP/g-C3N4film is good and the films exhibit excellent PEC performance. Furthermore, the thickness of the films can be adjusted by varying the electrospinning time and substantially controlling the PEC performance, of which the photocurrent densities under visible-light irradiation are 3.55, 4.92, and 6.64 μA cm-2with spinning times of 40, 70, and 120 min, respectively. The photocurrent does not decrease until testing at 4000 s and the coverage is still good after the tests, which indicates the good stability of the films. The excellent PEC performance of the films and facile preparation method enables promising applications in energy and environmental remediation areas.
authors.affiliation: Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P.R. China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P.R. China.
authors.forename: Xu
authors.initials: X
authors.lastname: Zhao
authors.affiliation: Department of Chemistry, Capital Normal University, Haidian District, Beijing, 100048, P.R. China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Tian
authors.affiliation: Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P.R. China.
authors.forename: Yanbin
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P.R. China.
authors.forename: Abdul Khaliq
authors.initials: AK
authors.lastname: Jan
authors.affiliation: Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P.R. China.
authors.forename: Yutong
authors.initials: Y
authors.lastname: Chen
keywords: carbon; electrochemistry; photochemistry; superconductors; synthesis design