Hydrothermal synthesis of mpg-C3N4 and Bi2WO6 nest-like structure nanohybrids with enhanced visible light photocatalytic activities. Issue 61 (7th August 2017)

• Record Type: Journal Article
• Authors: Zhu, Xingwang; Liu, Jinyuan; Zhao, Zhenzhen; Yan, Jia; Xu, Yuanguo; Song, Yanhua; Ji, Haiyan; Xu, Hui; Li, Huaming
• Is Part Of: RSC advances. Volume 7:Issue 61(2017)
• Page Start: 38682
• Page End: 38690
• Publication Date: 2017-08-07
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra06681c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Due to the anisotropic growth of Bi2 WO6, the zero-dimensional (0D) nanoparticles can be transformed into two-dimensional (2D) nanosheets, and finally self-assembled into three-dimensional (3D) nest-like structures. Abstract : To overcome the shortcomings of low photocatalytic efficiency, mpg-C3 N4 /Bi2 WO6 photocatalysts have been successfully designed via a facile hydrothermal method. A succession of techniques was used to explore the morphology, structure, surface composition and photocatalytic property of the mpg-C3 N4 /Bi2 WO6 material. The mpg-C3 N4 /Bi2 WO6 nanohybrid has high photocatalytic performance for the degradation of tetracycline hydrochloride (TC) and rhodamine B (RhB). Holes, ·O2 − and ·OH radicals are determined to be the active species in the process of photocatalytic degradation by ESR and capture experiments. The ultrathin thickness of nest-like Bi2 WO6 and the introduction of mpg-C3 N4 into the Bi2 WO6 matrix can improve the photocatalytic efficiency. The photocatalytic Z -scheme mechanism of the system was also discussed in detail. This work paves the way for preparing visible-light-driven nanocomposites for pollutant degradation.