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Green Preparation of Few‐Layer Graphene Sheet Materials Using Naturally Occurring Calcium Carbonate and Plant Leaves
Author(s) -
Xing Baoyan,
Zhao Jianguo,
Pan Qiliang,
Yang Hui,
Wang Lihua,
Qu Wenshan,
Gu Ling,
Wang Haiqing,
Han Peide,
Ma Guibin
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202000731
Subject(s) - graphene , calcium carbonate , materials science , raman spectroscopy , calcination , chemical engineering , scanning electron microscope , graphene oxide paper , carbonate , carbon dioxide , carbon fibers , nanotechnology , chemistry , composite material , composite number , metallurgy , organic chemistry , catalysis , engineering , physics , optics
Graphene sheets were prepared by calcination of calcium carbonate with plant leaves under the protection of an argon gas atmosphere. This is an environmentally friendly approach to produce graphene. Calcium carbonate decomposes with the evolution of carbon dioxide at high temperature, which is reduced into graphene by the magnesium from plant leaves. The formation mechanism of graphene is discussed in detail. The synthesized graphene sheets were characterized by scanning electron microscopy (SEM), X‐ray diffraction (XRD), and Raman spectroscopy. Calcium carbonate and plant leaves are readily available and inexpensive natural resources, and this new methodology can be applied for large‐scale graphene production in industry.