Green synthesis of g-C3N4-Pt catalyst and application to photocatalytic hydrogen evolution from water splitting. Issue 10 (3rd October 2018)

• Record Type: Journal Article
• Authors: Zhang, Xingfeng; Wu, Qiujie; Du, Zhongyi; Zheng, Yanmei; Li, Qingbiao
• Is Part Of: Fullerenes, nanotubes and carbon nanostructures. Volume 26:Issue 10(2018)
• Page Start: 688
• Page End: 695
• Publication Date: 2018-10-03
• Subjects: G-C3N4-Pt photocatalyst -- green synthesis -- visible-light photocatalysis -- hydrogen evolution; Fullerenes -- Periodicals; Nanotubes -- Periodicals; Nanostructures -- Periodicals; 546.6812
• DOI: 10.1080/1536383X.2018.1469006
• Languages: English
• ISSNs: 1536-383X

Abstract

ABSTRACT: The g-C3 N4 -Pt photocatalyst was successfully prepared by the combination of a biosynthesis method and sol deposition, which were used for hydrogen evolution from water splitting. The layers of g-C3 N4 are thinned and the Pt nanoparticles simultaneously become tightly bound to g-C3 N4 by secondary calcination in the process of synthesizing the g-C3 N4 -Pt photocatalyst. Analysis of the morphological structure and instrumental characterization of the optical performance revealed that the Pt nanoparticles were successfully loaded and well dispersed on the surface of g-C3 N4 . Furthermore, the absorption wavelength range of the g-C3 N4 -Pt photocatalyst in visible light was widened and the absorption increased. The activity and photostability of the g-C3 N4 -Pt photocatalyst for hydrogen evolution under visible light irradiation (λ≥420 nm) were excellent. The rate of H2 evolution reached 582.4 μmol h −1 g −1, and the quantum efficiency (QE) reached 2.70% at 420 nm.