Open AccessCNTs modified graphitic C 3 N 4 with enhanced visible‐light photocatalytic activity for the degradation of organic pollutants
Author(s) -
Wu Yibing,
Liao Huiwei,
Li Mengqiu
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2017.0864
Subject(s) - graphitic carbon nitride , photocatalysis , materials science , rhodamine b , carbon nanotube , nanocomposite , composite number , scanning electron microscope , polyvinylpyrrolidone , visible spectrum , chemical engineering , degradation (telecommunications) , diffuse reflectance infrared fourier transform , composite material , catalysis , chemistry , organic chemistry , telecommunications , optoelectronics , polymer chemistry , engineering , computer science
Graphitic carbon nitride(C 3 N 4 )/carbon nanotubes (CNTs) composite photocatalyst was synthesised by a facile and simple method. The resulting graphitic C 3 N 4 /CNTs composite was characterised by X‐ray powder diffraction, scanning electron microscopy and ultraviolet–visible diffuse reflectance spectroscopy techniques. The results showed that the CNTs modified by polyvinylpyrrolidone could provide a large amount of space and support for the surface area of graphitic C 3 N 4 so that the redox reaction was faster. Therefore, the photocatalytic properties of graphitic C 3 N 4 /CNTs composite could be greatly improved. Meanwhile, compared to the pure graphitic C 3 N 4, the surface‐modified graphitic C 3 N 4 /CNTs composite showed stronger photocatalytic activity in degradation of rhodamine B under visible‐light irradiation, especially the graphitic C 3 N 4 /CNTs (0.03 wt.%). In addition, the results also showed that the photocatalytic properties of the optimised nanocomposites were not decreased obviously.