Reducing sugar: new functional molecules for the green synthesis of graphene nanosheets.
Reducing sugar: new functional molecules for the green synthesis of graphene nanosheets.
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DOI：
10.1021/nn1002387
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发表时间：
2010-04
期刊：
影响因子：
17.1
通讯作者：
Chengzhou Zhu;Shaojun Guo;Youxing Fang;S. Dong
中科院分区：
文献类型：
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作者：
Chengzhou Zhu;Shaojun Guo;Youxing Fang;S. Dong
本文以剥离氧化石墨(GO)为前驱体，以葡萄糖、果糖和蔗糖为原料，开发了一种绿色、简便的化学转化石墨烯纳米片(GNS)的合成方法。用原子力显微镜、紫外-可见吸收光谱、透射电子显微镜、X射线光电子能谱等手段对所得GNS进行了表征。这种方法的优点是还原剂本身和氧化产物都是环保的。需要注意的是，除了GO的温和还原能力外，还原糖氧化产物还可以作为封闭剂同时对制备的GNS起到稳定作用，在水中表现出良好的稳定性。这种方法可以为大规模生产交替制备GN开辟新的可能性。此外，还发现基于GNS的材料在各个领域都有很大的应用价值，例如对儿茶酚胺(多巴胺、肾上腺素和去甲肾上腺素)具有良好的电催化活性。
In this paper, we developed a green and facile approach to the synthesis of chemically converted graphene nanosheets (GNS) based on reducing sugars, such as glucose, fructose and sucrose using exfoliated graphite oxide (GO) as precursor. The obtained GNS is characterized with atomic force microscopy, UV-visible absorption spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and so on. The merit of this method is that both the reducing agents themselves and the oxidized products are environmentally friendly. It should be noted that, besides the mild reduction capability to GO, the oxidized products of reducing sugars could also play an important role as a capping reagent in stabilizing as-prepared GNS simultaneously, which exhibited good stability in water. This approach can open up the new possibility for preparing GNS in large-scale production alternatively. Moreover, it is found that GNS-based materials could be of great value for applications in various fields, such as good electrocatalytic activity toward catecholamines (dopamine, epinephrine, and norepinephrine).