An exploration on in-situ synthesis of europium doped g-C3N4 for photocatalytic water splitting. (February 2019)

• Record Type: Journal Article
• Authors: Tang, Junying; Zhou, Weiguo; Guo, Ruitang; Huang, Chunying; Pan, Weiguo; Liu, Pengcheng
• Is Part Of: Energy procedia. Volume 158(2019)
• Page Start: 1553
• Page End: 1558
• Publication Date: 2019-02
• Subjects: Eu -- rare earth metal -- g-C3N4 -- water splitting; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2019.01.365
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: Eu doped g-C3 N4 composites with different contents (2%, 4%, 5%) were successfully synthesized by a facile in-situ method. Comprehensive characterizations including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), N2 adsorption-desorption and UV–vis diffuse reflectance revealed that the introduction of Eu affected the surface, structural and optical properties of the photocatalyts. The photocatalytic activity of Eu/g-C3 N4 catalysts was tested for water splitting under the visible light irradiation, and it exhibited superior performance. A maximum H2 yields of 2425.7 umol ▪ g-cat had been obtained on 4% Eu/g-C3 N4 catalyst, which was about 4.0 times as high as the pure g-C3 N4 . The excellent photocatalytic performance may be ascribed to the high specific surface area and enhanced visible-light absorption. The work provides meaningful guidelines for improving photocatalytic activity by rare earth elements modifying.