School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China.
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China.
Ultrason Sonochem. 2018 Nov;48:96-102. doi: 10.1016/j.ultsonch.2018.05.010. Epub 2018 May 22.
In this paper, we demonstrated a simple and cost-effective method to produce graphene from graphite in ethanol using ultrasound assisted with curcumin. The influence of curcumin concentration, starting graphite amount, sonication power, and sonication time on the graphene concentration was studied schematically. The π-π interaction between curcumin and graphene, being confirmed by FTIR spectrum, facilitate the exfoliation of the graphite into graphene. The concentration of the graphene in the ethanol reached up to 1.44 mg mL and the exfoliated suspension was relatively stable. The content of monolayer, bilayer, and multilayer in the exfoliated graphene suspension were 21%, 37%, and 42%, respectively. The as-prepared graphene sheets were free-defect. This novel approach may not only enable to exfoliate the graphite into graphene but also to make the graphene-curcumin hybrid which might find applications in pharmaceutical industry.
在本文中，我们展示了一种简单且经济有效的方法，即在乙醇中使用超声辅助姜黄素从石墨中生产石墨烯。我们系统地研究了姜黄素浓度、起始石墨量、超声功率和超声时间对石墨烯浓度的影响。FTIR 光谱证实了姜黄素与石墨烯之间的π-π相互作用，有利于将石墨剥离成石墨烯。在乙醇中石墨烯的浓度最高可达 1.44mg/mL，并且剥离的悬浮液相对稳定。剥离的石墨烯悬浮液中单层、双层和多层的含量分别为 21%、37%和 42%。所制备的石墨烯片无缺陷。这种新方法不仅可以将石墨剥离成石墨烯，还可以制备石墨烯-姜黄素杂化材料，可能在制药行业得到应用。
