氧磷共掺杂二维石墨相氮化碳的制备及光催化性能

doi:10.11896/cldb.23070238

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Abstract The oxygen-phosphorus co-doped two-dimensional graphitic carbon nitrides (g-C₃N₄), differing in the adding amount of ammonium phosphate, were prepared by supramolecular self-assembly and thermal polymerization, and were characterized by means of XRD, FTIR, XPS, SEM, TEM, UV-vis, photoluminescent spectroscopy, BET N₂ adsorption-desorption, and electrochemical impedance spectrometry. The photocatalytic activities of the samples were also estimated by catalyzing rhodamine B (RhB) degradation under visible light irradiation. The results showed that the co-doping of oxygen-phosphorus into g-C₃N₄ led to the morphology transformation from one-dimensional tubes to two-dimensional stacked sheets, the narrowing of forbidden band width, the improvement in electron-hole pairs separation efficiency, and consequently, the enhancement of photocatalytic performance. The synergistic effect of the three active groups -·O₂^-, ·OH, and h⁺- resulted in the RhB degradation rate of 92.11% at initial state and of above 85% after 5-time reuse in photocatalytic performance test, which indicated a good stability. Especially, one of the prepared samples achieved a rate constant of photocatalyzed RhB degradation of 0.016 60 min^-1, which was 12.39 times and 4.54 times higher than those of the pure g-C₃N₄ and of the g-C₃N₄ prepared by melamine-ammonium oxalate supramolecular precursor system, respectively.

Key words： graphitic carbon nitride (g-C₃N₄) supramolecular self-assembly photocatalysis co-doping

Published: 10 November 2024 Online: 2024-11-11

CLC number:	X703
	O644

Fund:2022 Scientific Research Project of Liaoning Provincial Department of Education (LJKMZ20220721).

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	LIU Jingjin
	ZHAO Hua
	LI Huipeng
	CAI Tianfeng

Cite this article:

LIU Jingjin,ZHAO Hua,LI Huipeng, et al. Preparation of Oxygen-Phosphorus Co-doped Two-dimensional Graphitic Carbon Nitrides and Their Photocatalytic Performances[J]. Materials Reports, 2024, 38(21): 23070238-7.

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http://www.mater-rep.com/EN/10.11896/cldb.23070238 OR http://www.mater-rep.com/EN/Y2024/V38/I21/23070238

1 Xie L, Liu S, Sun Y W, et al. Journal of Petrochemical Universities, 2021, 34(6), 27 (in Chinese).
谢磊, 刘帅, 孙有为, 等. 石油化工高等学校学报, 2021, 34(6), 27.
2 Tian L, Li J, Liang F, et al. Applied Catalysis B: Environmental, 2018, 225, 307.
3 Tang L P,Jia J J, Hu Y Y, et al. New Chemical Materials, 2022, 50(3), 69 (in Chinese).
唐立平, 贾晶晶, 胡莹莹, 等. 化工新型材料, 2022, 50(3), 69.
4 Li Y H, Zhang J, Zhang Y S, et al. Journal of Petrochemical Universities, 2019, 32(2), 1 (in Chinese).
李昱慧, 张静, 张昱屾, 等. 石油化工高等学校学报, 2019, 32(2), 1.
5 Lin M X, Li F Y, Wang Y J, et al. Journal of Liaoning Shihua University, 2019, 39(2), 1 (in Chinese).
吝美霞, 李法云, 王艳杰, 等. 辽宁石油化工大学学报, 2019, 39(2), 1.
6 Li Z S, Chen Q Y, Lin Q C, et al. Journal of the Taiwan Institute of Chemical Engineers, 2020, 114, 249.
7 Jiang L B, Yuan X Z,Zeng G M, et al. Journal of Colloid and Interface Science, 2019, 536, 17.
8 Arumugam M, Tahir M, Praserthd P, et al. Chemosphere, 2022, 286, 131765.
9 Shalom M,Inal S, Fettkenhauer C, et al. Journal of the American Chemical Society, 2013, 135(19), 7118.
10 Niu H Y, Zhao W J, Lv H Z, et al. Chemical Engineering Journal, 2021, 411, 128400.
11 Cai Y Q, Zhang H. Journal of Jiangsu Univeisity of Technology, 2020, 26(2), 9 (in Chinese).
曹煜祺, 张慧. 江苏理工学院学报, 2020, 26(2), 9.
12 Han X P,Tian L, Jiang H J, et al. RSC Advances, 2017, 7, 1437.
13 Su F Y, Zhang W D. RSC Advances, 2017, 12(5), 515.
14 Ai B, Li J Q, Liu F, et al. Journal of Molecular Science, 2020, 36(6), 511 (in Chinese).
艾兵, 李佳奇, 刘凡, 等. 分子科学学报, 2020, 36(6), 511.
15 Liu HH, Chen D L, Wang Z Q, et al. Applied Catalysis B: Environmental, 2017, 203, 300.
16 Chen W, Liu T Y, Huang T, et al. Nanoscale, 2016, 8(6), 3711.
17 Zhang Y J, Mori T, Ye J H, et al. Journal of the American Chemical Society, 2010, 132(18), 6294.
18 Xu Z, Yu X G, Shan Y, et al. Journal of Inorganic Materials, 2017, 32(2), 155 (in Chinese).
徐赞, 于薛刚, 单妍, 等. 无机材料学报, 2017, 32(2), 155.
19 Li J H,Shen B, Hong Z H, et al. Langmuir, 2012, 48(98), 12017.
20 Zheng Y, Wang X C. Materials China, 2017, 36(1), 25 (in Chinese).
郑云, 王心晨. 中国材料进展, 2017, 36(1), 25.