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Porous Graphitic Carbon Nitride Synthesized via Using Carbon Nanotube as a Novel Recyclable Hard Template for Efficient Visible Light Photocatalytic Organic Pollutant Degradation
Author(s) -
Chen Xiang,
Wang Haonan,
Meng Ruru,
Chen Minmin
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201901227
Subject(s) - photocatalysis , graphitic carbon nitride , materials science , porosity , visible spectrum , carbon nitride , specific surface area , chemical engineering , nanotechnology , degradation (telecommunications) , carbon nanotube , nitride , carbon fibers , environmental remediation , decomposition , template , catalysis , organic chemistry , composite material , chemistry , optoelectronics , contamination , telecommunications , composite number , computer science , engineering , ecology , layer (electronics) , biology
Two‐dimensional (2D) graphitic carbon nitride (g‐C 3 N 4 ) has attracted considerable attention due to its many intriguing properties in visible light photocatalysis. However, the photocatalytic performance of g‐C 3 N 4 is far from satisfaction partly because standard synthesis methods prepare rather dense materials with low specific surface area. Herein, we report a facile approach to prepare porous g‐C 3 N 4 via using carbon nanotubes (CNT) as a novel hard template for the first time. Unlike other hard templates, CNT can be easily removed by ultrasonic method and recycled to produce porous g‐C 3 N 4 . The as‐prepared porous g‐C 3 N 4 has a much higher specific surface area of 103.3 m 2 g −1 than the bulk g‐C 3 N 4 of 10.5 m 2 g −1 . The photocatalytic organic pollutant decomposition rate of porous g‐C 3 N 4 is nearly 4.4 times as high as that of bulk g‐C 3 N 4 under visible light (λ > 400 nm) irradiation. This work opens a new way to explore the sustainable, environment‐friendly preparation of high‐performance g‐C 3 N 4 for solar energy conversion and environmental remediation, especially for large‐scale applications in industry.