Abstract
Abstract
Nitrogen-rich graphite carbon nitride has attracted considerable attention due to its low band gap and widespread potential application. Herein, a series of porous g-C3N4+x
materials are developed by pyrolysis of 3-amino-1, 2, 4-triazole (C2H4N4) and mesoporous silica template (KIT-6). The pore diameters can be precisely tuned by controlling the proportion of C2H4N4 and KIT-6. A variety of characterizations were conducted to analyze the correlation between structure and photocatalytic performance toward the degradation of rhodamine B. It was found that, the synthesized porous g-C3N4+x
exhibited a narrower band gap of 1.43 eV, which significantly extended its visible-light responsive range. Moreover, the enhanced N content and adjustable porous diameter effectively increased the separation efficiency of photogenerated electron–hole pairs. Therefore, remarkably improved photocatalytic activity was achieved, which was 5.2 times higher than that of bulk g-C3N4+x
, and presented super stability as well. Additionally, the possible photocatalytic mechanism was proposed and verified. These findings shed light on a new facile way to fabricate high-performance photocatalytic materials and provided new opportunities for environmental remediation.
Funder
National Natural Science Foundation of China
Natural Science Foundation of the Jiangsu Higher Education Institutions of China
Natural Science Foundation of Jiangsu Province
Subject
Surfaces, Coatings and Films,Acoustics and Ultrasonics,Condensed Matter Physics,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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