Graphitic carbon nitride nanosheets obtained by liquid stripping as efficient photocatalysts under visible light

被引:83
作者
Fan, Chengkong [1 ]
Miao, Jilin [2 ]
Xu, Guangqing [1 ,3 ]
Liu, Jiaqin [2 ,3 ]
Lv, Jun [1 ,3 ]
Wu, Yucheng [1 ,2 ,3 ]
机构
[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China
[2] Inst Hefei Univ Technol, Ind & Equipment Technol, Hefei 230009, Anhui, Peoples R China
[3] Hefei Univ Technol, Key Lab Adv Funct Mat & Devices Anhui Province, Hefei 230009, Anhui, Peoples R China
来源
RSC ADVANCES | 2017年 / 7卷 / 59期
关键词
SOLID-STATE NMR; SINGLE-LAYER GRAPHITIC-C3N4; HYDROGEN-EVOLUTION; G-C3N4; PERFORMANCE; TIO2; FABRICATION; REDUCTION; OXIDATION; CATALYSTS;
D O I
10.1039/c7ra05732f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Herein, well-scattered g-C3N4 nanosheets were obtained using a liquid stripping method in an ammonia solution at various temperatures. The phase structures, morphologies, and elemental compositions were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman spectra, and Fourier transform infrared spectroscopy. The nanosheets with sizes of several hundred nanometers can be obtained via liquid stripping. The photocatalytic performance of the g-C3N4 nanosheets was measured by degrading RhB under visible-light illumination. The g-C3N4 (30) nanosheets can achieve the highest degradation rate of 88% in 60 min, which is 5 times that of bulk g-C3N4. The mechanisms of the enhancement were studied by discussing the whole photocatalytic process. It has been observed that high specific surface area plays a key role in enhancing the photocatalytic performance.
引用
收藏
页码:37185 / 37193
页数:9
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