Demineralization of sub-bituminous coal by fungal leaching: A structural characterization by X-ray and FTIR analysis
- Title
- Demineralization of sub-bituminous coal by fungal leaching: A structural characterization by X-ray and FTIR analysis
- Creator
- Manoj B.; Elcey C.D.
- Description
- The filamentous fungi, A. niger, A. flavus and Penicillium spp were studied for their ability to demineralise the low rank Indian coals. The FTIR spectra of coals showed the presence of stretching vibrations of -OH bond, aliphatic -CH, -CH2 and - CH3 absorptions, C=C and -CH of aromatic structure and mineral groups. X-ray analyses revealed that coal consists of crystalline carbon of turbostratic structure. The average lateral sizes (La), stacking height (Lc) and the interlayer spacing (d002) of the crystallite structure were calculated which ranged from 343.64 to 1.5, 223.20 to 22.54 and 3.35 to 3.60respectively. The structure of coal was modified to a product similar to that of pure graphite after leaching with Penicillium spp. Scanning electron microscopy (SEM) analysis of coal revealed a layer like structure on the surface.
- Source
- Research Journal of Chemistry and Environment, Vol-17, No. 8, pp. 11-15.
- Date
- 2013-01-01
- Subject
- Aromaticity; Bio-demineralization; Coal characterization; Graphene layers
- Coverage
- Manoj B., Department of Physics, Christ University, Bangalore, Karnataka, Hosur Road, India; Elcey C.D., Department of Life Science, Kristu Jayanti College, Bangalore, India
- Rights
- Restricted Access
- Relation
- ISSN: 22784527
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Manoj B.; Elcey C.D., “Demineralization of sub-bituminous coal by fungal leaching: A structural characterization by X-ray and FTIR analysis,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/17264.