• 文献标题:   Sustainable Graphene Production: New Insights into Cannabis sativa Engineered Carbon Dots Based Exfoliating Agent for Facile Production of Graphene
  • 文献类型:   Article
  • 作  者:   TIWARI P, SHARMA V, KAUR N, AHMAD K, MOBIN SM
  • 作者关键词:   cannabis sativa, carbon dot, graphene exfoliation, carbon nanomaterial, antibacterial application
  • 出版物名称:   ACS SUSTAINABLE CHEMISTRY ENGINEERING
  • ISSN:   2168-0485
  • 通讯作者地址:   Indian Inst Technol Indore
  • 被引频次:   3
  • DOI:   10.1021/acssuschemeng.9b01353
  • 出版年:   2019

▎ 摘  要

The direct exfoliation of graphite (Gr) produces high-quality graphene (G) having enormous industrial applications. Exploring sustainable sources as an exfoliating agent offers advantages in terms of cost and ease of production. Herein, sustainably sourced Cannabis sativa engineered carbon dots (N@CSDs) were used as an exfoliant for direct exfoliation of Gr into G (GN@CSDs). The present method opens a new avenue toward exploring a zero-dimensional carbon material (OD) for exfoliating Gr (3D) to G (2D). High-temperature sonication (similar to 60 degrees C) facilitates the exfoliation process by disrupting pi-pi interactions between Gr sheets. The N@CSDs stabilizes the exfoliated sheets via electrostatic interaction into GN@CSDs. The Raman spectroscopy confirms successful exfoliation and formation of few-layer graphene sheets, whereas atomic force microscopy reveals the presence of N@CSDs on the GN@CSDs sheets. GN@CSDs shows excellent stability over 1 month under various harsh conditions, confirming the role of N@CSDs in the stabilization process. Interestingly, GN@CSDs exhibit antibacterial nature by hindering the growth of bacteria.