【摘要】 石墨烯具有优异的光电性能，在“碳中和”相关技术领域有巨大的应用潜力。最近，我们开发了一种采用过硫酸钾为磨剂机械化学制备边缘羟基化石墨烯的绿色新方法，产物兼具石墨烯本征性能佳和水中分散性好的特点；制备过程不需要使用有机溶剂，能耗低，产生的废弃物量少且无毒。本文将该科研成果转化，设计了一个石墨烯的制备、表征及应用的综合型实验，利用多种仪器分析方法研究石墨烯的结构及光电性能，并与文献报道的研究结果进行了对比分析，不仅锻炼了学生综合运用知识解决实际问题的能力，而且有助于激发学生的创新思维，培养“绿色化学”意识。更多还原

【Abstract】 Graphene exhibits excellent optical and electrical properties. Therefore, it presents remarkable potential application in “carbon neutral” technologies. We have recently developed a green mechanochemical method for preparation of edge-selectively hydroxylated graphene nanosheets using persulfate as the milling reagent. The asprepared graphene exhibited the typical intrinsic properties of graphene and good dispersity in water. The preparation process did not require organic solvents, it involved low energy consumption, and produced little eco-friendly waste.Based on the aforementioned study, we designed an experiment on the green preparation, characterization, and applications of graphene. Various instrumental analytical methods were used to explore the structure and physicochemical properties of graphene and the applications of graphene as an energy storage material. We also compared the properties of the as-prepared graphene with those of graphene samples previously reported in the literature. This experiment should cultivate student ability to comprehensively use basic chemistry knowledge to solve real-life problems, stimulate their innovative thinking, and cultivate their “green chemistry” consciousness.更多还原