基于微波辐照合成类石墨烯氮化碳的研究进展

Progress in microwave irradiation synthesis of graphene-like carbon nitride

类石墨烯氮化碳具有与石墨烯非常相似的结构特征,已在光催化、润滑等领域表现出极优越的性能,成为二维纳米功能材料领域的新热点。本文重点介绍了基于微波辐照合成类石墨烯氮化碳的研究进展,并通过与氧化刻蚀、液相超声剥离、热聚合等传统合成方法的比较,分析了微波合成在制备效率、效果上的优势;并指出采用高功率微波设备和石墨粉、短切碳纤维等对微波具有强烈响应的微波吸收剂,通过增强能量传递与吸收效率,强化微波电磁场环境下合成反应的非稳态程度,有助于提高合成效率、效果,并获取得到特殊形态、结构的新产物。

The synthesis of graphene-like carbon nitride has been a new research hotspot in the field of two-dimensional functional materials due to its similar structural characteristics to graphene and outstanding properties covering photocatalysis and lubrication and so on.Herein,the research progress of the microwave irradiation synthesis of graphene-like carbon nitride was discussed.Based on the comparison to the traditional preparation approaches including high-temperature oxidation corrosion,liquid phase ultrasonic exfoliation and thermal polymerization,etc.,the advantages of microwave irradiation synthesis were analyzed.At the same time,one can find that by means of using high-energy microwave instrument and microwave absorbents covering graphite powders and short carbon fibers that possess excellent microwave energy absorption ability,the transferring and absorption efficient of energy as well as the non-steady degree of the synthesis reactions occurred in the microwave electromagnetic field can be enhanced,is consequently beneficial to the achievement of novel products with special morphology and structure.