Research advances of g-C3N4-based photocatalytic materials with special morphologies

doi:10.16085/j.issn.1000-6613.2018-1160

Abstract

Abstract:

The g-C₃N₄-based materials with special morphologies have the characteristics of hierarchical structure and adjustable short-range electron transfer pathway etc., and thus could well overcome the problems of traditional g-C₃N₄-based materials such as small specific surface area, low visible-light utilization efficiency, and high recombination rate of photo-generated carriers. Consequently, they demonstrate broad development prospect and great application potential in the photocatalysis field. This review highlights the recent advances of g-C₃N₄-based materials with special morphologies, such as tube/rod/array, porous microsphere, gel and biomimetic morphology, and discusses the structure-function relationship between their morphologies and the photocatalytic performance. At present, the research for this kind of materials is in their infancy and they still exhibit a few problems, such as limited morphology types, few synthetic methods and insufficient understanding of the structure-function relationship. Therefore, the investigation should be focused on the expansion of the morphology type, regulation of the energy band position, the transfer mechanism of photo-generated carriers and the molecular modeling in the future, so as to afford better ideas for the exploration of high-performance photocatalytic materials.

Key words: graphitic carbon nitride, catalyst, solar energy, polymers

摘要：

特殊形貌石墨相氮化碳（g-C₃N₄）基材料具有多级结构、可调变的短程电子传递路径等特点，能较好地解决传统g-C₃N₄基材料存在的比表面积小、可见光利用效率低以及光生载流子易复合等问题，因而具有广阔的发展前景和应用潜力。本文对管/棒/阵列、多孔微球、凝胶和仿生形貌等特殊形貌g-C₃N₄基光催化材料的研究进展进行了系统评述，并对该类材料的形貌与催化功能之间的构效关系进行了分析和总结。指出目前该类材料的研究尚处于起步阶段，还存在着形貌数量种类偏少、合成方法较少、构效关系认识不够深入等问题。因此，该领域未来应该在拓展形貌种类、调控能带位置、光生载流子转移机理和分子模拟等方面进行深入研究，为高性能光催化剂的研制提供更好的思路。

关键词: 石墨相氮化碳, 催化剂, 太阳能, 聚合物

CLC Number:

O643

Dong YANG, Zhiyuan ZHOU, Fei DING, Xuyang ZHAO, Yao CHEN, Zhongyi JIANG. Research advances of g-C₃N₄-based photocatalytic materials with special morphologies[J]. Chemical Industry and Engineering Progress, 2019, 38(01): 495-504.

杨冬, 周致远, 丁菲, 赵旭阳, 陈瑶, 姜忠义. 特殊形貌g-C₃N₄基光催化材料的研究进展[J]. 化工进展, 2019, 38(01): 495-504.

Figures/Tables 10

References 65

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催化剂种类	制备方法	形貌	应用领域	光催化活性	参考文献
g-C₃N₄	热聚合	体相	产氢	12μmol·h^-1	Wang等^[7]
g-C₃N₄	模板法	手性纳米棒	产氢	74 μmol·h^-1	Zheng等^[34]
g-C₃N₄	自组装	氮缺陷纳米管	产氢	118.5μmol·h^-1	Mo等^[37]
g-C₃N₄	水热合成	自掺杂六棱形微管	产氢	1575μmol·h^-1·g^-1	Tong等^[39]
g-C₃N₄/InVO₄	无模板法	纳米棒/空心球	降解抗生素	体相g-C₃N₄降解速率的2.5倍	You等^[40]
g-C₃N₄	微波加热	金字塔阵列	降解罗丹明B	脱色率99.5%（2h）	Yu等^[42]
g-C₃N₄	模板法	多孔微球	产氢	157μmol·h^-1	Zhao等^[45]
g-C₃N₄	模板法	多壳层微囊	产氢	630μmol·h·^-1·g^-1	Tong等^[48]
g-C₃N₄	水热合成	凝胶	性能研究	氧化还原能力增强	Zeng等^[55]
g-C₃N₄/GO	水热合成	凝胶	降解甲基橙	去除率92%（4h）	Tong等^[56]
g-C₃N₄ /GO	超声化学	凝胶	去除NO	NO去除率为64.9%和60.7%	Li等^[59]
g-C₃N₄	无模板法	磷掺杂纳米花	产氢	104μmol·h^-1	Zhu等^[60]
g-C₃N₄/C	超分子组装	微米花	性能研究	高析氧反应活性	Tong等^[61]
g-C₃N₄	热结晶	树状结构	产氢	178μmol·h^-1	Song等^[65]

催化剂种类	制备方法	形貌	应用领域	光催化活性	参考文献
g-C₃N₄	热聚合	体相	产氢	12μmol·h^-1	Wang等^[7]
g-C₃N₄	模板法	手性纳米棒	产氢	74 μmol·h^-1	Zheng等^[34]
g-C₃N₄	自组装	氮缺陷纳米管	产氢	118.5μmol·h^-1	Mo等^[37]
g-C₃N₄	水热合成	自掺杂六棱形微管	产氢	1575μmol·h^-1·g^-1	Tong等^[39]
g-C₃N₄/InVO₄	无模板法	纳米棒/空心球	降解抗生素	体相g-C₃N₄降解速率的2.5倍	You等^[40]
g-C₃N₄	微波加热	金字塔阵列	降解罗丹明B	脱色率99.5%（2h）	Yu等^[42]
g-C₃N₄	模板法	多孔微球	产氢	157μmol·h^-1	Zhao等^[45]
g-C₃N₄	模板法	多壳层微囊	产氢	630μmol·h·^-1·g^-1	Tong等^[48]
g-C₃N₄	水热合成	凝胶	性能研究	氧化还原能力增强	Zeng等^[55]
g-C₃N₄/GO	水热合成	凝胶	降解甲基橙	去除率92%（4h）	Tong等^[56]
g-C₃N₄ /GO	超声化学	凝胶	去除NO	NO去除率为64.9%和60.7%	Li等^[59]
g-C₃N₄	无模板法	磷掺杂纳米花	产氢	104μmol·h^-1	Zhu等^[60]
g-C₃N₄/C	超分子组装	微米花	性能研究	高析氧反应活性	Tong等^[61]
g-C₃N₄	热结晶	树状结构	产氢	178μmol·h^-1	Song等^[65]

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Research advances of g-C₃N₄-based photocatalytic materials with special morphologies

特殊形貌g-C₃N₄基光催化材料的研究进展

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