Extraction of preformed mixed phase graphene sheets from graphitized coal by fungal leaching
- Title
- Extraction of preformed mixed phase graphene sheets from graphitized coal by fungal leaching
- Creator
- Balachandran M.
- Description
- The potential use of coal as source of carbon nano structure is seldom investigated. Herein we report a facile fungal solubilization method to extract mixed phase carbon structure from low grade coal. Coal had been used as a primary source for the production of carbon nanostructure with novel property, in addition to its main utility as a fuel. The major hurdle in its application is the inherent mineral embedded in it. An environmentally benign demineralization procedure make coal as a widely accepted precursor for the novel carbon materials. With Aspergiilus niger leaching, the randomly oriented preformed crystalline mixed phase nanocarbon in coal can be extracted. Raman studies revealed the presence of E2g scattering mode of graphite. The sp3 domains at ~1355 cm-1 (D band) is an indication of diamond like structure with disorder or defect. In the 2D region, multilayer stacking of graphene layers is noticed. The ratio of the defect to graphitic bands was found to be decreasing with increasing rank of coal. Bio leaching of coal enhances the carbon content in coal while eliminating the associated minerals in it. These defected carbon is an ideal material for graphene quantum dots and carbon dots, which are useful in drug delivery and bio imaging applications. 2017, IGI Global. All rights reserved.
- Source
- Handbook of Research on Inventive Bioremediation Techniques, pp. 287-299.
- Date
- 2017-01-01
- Publisher
- IGI Global
- Coverage
- Balachandran M., Christ University, India
- Rights
- Restricted Access
- Relation
- ISBN: 978-152252326-0; 1522523251; 978-152252325-3
- Format
- Online
- Language
- English
- Type
- Book chapter
Collection
Citation
Balachandran M., “Extraction of preformed mixed phase graphene sheets from graphitized coal by fungal leaching,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 22, 2025, https://archives.christuniversity.in/items/show/18905.