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Controllable Preparation and Photocatalytic Performance of Graphitic Carbon Nitride Nanosheets
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Feiyang DUAN, Anning ZHOU, Fuxin CHEN, Jie LING, Mengdan MA, Xinyu JIA
Journal of the Chinese Ceramic Society | 2021, 49(10) : 2053 - 2060
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Journal of the Chinese Ceramic Society | 2021, 49(10): 2053-2060
Controllable Preparation and Photocatalytic Performance of Graphitic Carbon Nitride Nanosheets
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Feiyang DUAN, Anning ZHOU, Fuxin CHEN, Jie LING, Mengdan MA, Xinyu JIA
Affiliations
  • School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China

    • DUAN Feiyang (1995—), male, Master candidate. E-mail:

About Author:

DUAN Feiyang (1995—), male, Master candidate. E-mail:

Published: 2021-10-20 doi: 10.14062/j.issn.0454-5648.20210067
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A series of graphitic carbon nitride (g-C3N4) nanosheets with controllable thicknesses were prepared by a thermal polymerization method with different ratios of precursor melamine and urea. The nanosheets were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, specific surface area measurement, ultraviolet-visible spectroscopy and photoluminescence, respectively, which were used for the photocatalytic degradation of Rhodamine B (RhB). The results show that g-C3N4 is the thinnest (1∶8-CN) with the thickness of 3.5 nm when the ratio of melamine to urea is 1∶8. Its specific surface area is 6 times greater than that of g-C3N4 prepared using only melamine (assigned as M-CN). The photoelectric analysis indicates that 1∶8-CN has a higher separation efficiency of photogenerated carriers. Under the visible-light, the photocatalytic degradation rate of RhB by 1∶8-CN can reach 96.2%, which is 1.9 times greater than that of M-CN. Besides, the photocatalytic degradation mechanism of 1∶8-CN toward RhB is since the electrons generated by the separation of photogenerated electron-hole pairs combine with O2 to generate·O2-, and then·O2- oxidizes RhB into CO2 and H2O, and the holes do hardly participate in the reaction.

graphitic carbon nitride nanosheets  /  photocatalysis  /  reaction mechanism
段飞阳, 周安宁, 陈福欣, 凌洁, 马梦丹, 贾忻宇. 石墨相氮化碳纳米片的可控制备及光催化性能. 硅酸盐学报, 2021 , 49 (10) : 2053 -2060 . DOI: 10.14062/j.issn.0454-5648.20210067
Feiyang DUAN, Anning ZHOU, Fuxin CHEN, Jie LING, Mengdan MA, Xinyu JIA. Controllable Preparation and Photocatalytic Performance of Graphitic Carbon Nitride Nanosheets[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (10) : 2053 -2060 . DOI: 10.14062/j.issn.0454-5648.20210067
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Year 2021 volume 49 Issue 10
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Article Info
doi: 10.14062/j.issn.0454-5648.20210067
  • Receive Date：2021-01-26
  • Online Date：2026-10-30
  • Published：2021-10-20
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History
  • Received：2021-01-26
  • Revised：2021-02-26
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Affiliations
    School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China

Corresponding:

ZHOU Anning (1962—), male, Ph. D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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