A template induced method to synthesize nanoporous graphitic carbon nitride with enhanced photocatalytic activity under visible light

被引：35
作者：
Fan, Qianjing [1 ]
Liu, Jianjun [1 ]
Yu, Yingchun [1 ]
Zuo, Shengli [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
RSC ADVANCES | 2014年 / 4卷 / 106期
关键词：
G-C3N4; WATER; PHOTODEGRADATION; DEGRADATION; EVOLUTION; CATALYSIS; MELAMINE;
D O I：
10.1039/c4ra12033g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A template induced method was developed to synthesize nanoporous graphitic carbon nitride (npg-CN) by directly heating Triton X-100-modified-melamine sulfate. The effects of the added amount of Triton X-100 and heating temperature on the formation of npg-CN were investigated. The npg-CN samples were characterized by XRD, FT-IR, and elemental analysis; nitrogen adsorption isotherms, SEM and TEM images; and UV-vis DRS and photoluminescence spectra. The results showed that the npg-CN samples possessed a laver-like layered structure with a high surface area (50-135 m(2) g(-1)). Meanwhile, compared to the bulk g-CN (synthesized by directly heating melamine), the npg-CN samples possessed stronger optical absorptions, narrower band gaps, and significantly reduced fluorescence intensity. The photocatalytic activity was investigated by degradation of Rhodamine B under visible light irradiation. As a result, the photodegradation rate of Rhodamine B dye on the npg-CN samples was greatly improved over that on bulk g-CN.
引用
收藏
页码：61877 / 61883
页数：7
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