Carbon nanotubes as electronic mediators combined with Bi2MoO6 and g-C3N4 to form Z-scheme heterojunctions to enhance visible light photocatalysis. (22nd December 2021)

• Record Type: Journal Article
• Authors: Wu, Hao; Meng, Fanming; Liu, Xingbing; Yu, Bo
• Is Part Of: Nanotechnology. Volume 33:Number 11(2022)
• Publication Date: 2021-12-22
• Subjects: Bi2MoO6 -- g-C3N4 -- CNTs -- Z-type charge transfer mechanism; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/ac3f13
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: In this paper, Z-scheme Bi2 MoO6 /CNTs/g-C3 N4 composite photocatalysts were prepared through a simple hydrothermal method. The analysis was performed by XRD, FT-IR, SEM, EDS, TEM, HRTEM, XPS, BET, UV–Vis diffuse reflectance and PL spectrums. Various analyses show that CNTs not only act as excellent charge transfer bridges, but also enable a formation of the Z-scheme of charge transfer mechanism between Bi2 MoO6 and g-C3 N4 . This process not only effectively isolates electrons and holes, but also prolongs electron–hole pair lifetimes, resulting in a substantial improvement in the photocatalytic performance of the composite photocatalyst. Best photocatalytic degradation performance was shown by Bi2 MoO6 /CNTs/g-C3 N4 composite photocatalyst under simulated sunlight, while the composite photocatalyst still maintained extremely high degradation performance in cycling tests.