A Convenient Method to Prepare Novel Rare Earth Metal Ce‐Doped Carbon Nitride with Enhanced Photocatalytic Activity Under Visible Light. (January 2015)

• Record Type: Journal Article
• Authors: Jin, Ruirui; Hu, Shaozheng; Gui, Jianzhou; Liu, Dan
• Is Part Of: Bulletin of the Korean Chemical Society. Volume 36:Number 1(2015:Jan.)
• Page Start: 17
• Page End: 23
• Publication Date: 2015-01
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1002/bkcs.10001
• Languages: English
• ISSNs: 0253-2964

Abstract

<abstract abstract-type="main" id="bkcs10001-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p id="bkcs10001-para-0001">Graphitic carbon nitride (g‐C₃N₄ ) doped with the rare earth metal Ce was prepared by a simple method using melamine and Ce(SO₄ )₂·4H₂O as precursors. X‐ray diffraction (XRD), UV‐vis spectroscopy, Fourier transform infrared spectroscopy (FT‐IR), scanning electron microscopy (SEM), photoluminescence (PL) spectroscopy, and X‐ray photoelectron spectroscopy (XPS) were used to characterize the prepared catalysts. The results indicate that the introduction of Ce inhibits the crystal growth of g‐C₃N₄, decreases the bandgap energy, and increases the separation efficiency of photogenerated electrons and holes. The activities of Ce‐doped g‐C₃N₄ catalysts were tested in the photocatalytic degradation of rhodamine B (RhB) under visible light. The rate constant of Ce‐doped g‐C₃N₄ is 2.1× that of neat g‐C₃N₄ . A possible mechanism is proposed.</p> </abstract>