SEUIR Repository

A rapid method to prepare exfoliated graphite using Sri Lankan vein graphite

Show simple item record

dc.contributor.author Senevirathna, T. C.
dc.contributor.author Hewathilake, H. P. T. S.
dc.contributor.author Wijayasinghe, H. W. M. A. C.
dc.contributor.author Balasooriya, N.W.B.
dc.contributor.author Pitawala, H. M. T. G. A.
dc.date.accessioned 2016-12-21T13:48:52Z
dc.date.available 2016-12-21T13:48:52Z
dc.date.issued 2016-12-20
dc.identifier.citation 6th International Symposium 2016 on “Multidisciplinary Research for Sustainable Development in the Information Era,” pp 304-309. en_US
dc.identifier.isbn 978-955-627-098-3
dc.identifier.uri http://ir.lib.seu.ac.lk/handle/123456789/1964
dc.description.abstract Expansion of graphite using Microwave Irradiation Technique is very promising because it can be performed at room temperature in a short time and less energy consuming with a simple laboratory facility. The aim of this study was to prepare exfoliated graphite from Sri Lankan vein graphite using microwave heating. In the present study, two precursors were prepared by mixing needle platy graphite (NPG) with KMnO4 and HNO3 at 1:1:2 ratio. After that, the first sample was irradiated with microwave just after mixing and while the second one was irradiated after keeping for 12 hrs. As visual observations, the first sample underwent the maximum exfoliation to graphite. Fourier transmission infrared (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD) and d.c. four probe conductivity characterizations were carried out on the raw and treated samples. Worm-like structure of expanded graphite could be clearly observed from SEM study and the new IR peaks formed during the microwave treatment at 1269cm–1 and 1384cm–1 could be evidently confirmed intercalation of functional groups. The findings of this study should lead to better understanding of the exfoliation of Sri Lankan vein graphite using microwave irradiation technique within a short period of time. en_US
dc.language.iso en_US en_US
dc.publisher South Eastern University of Sri Lanka en_US
dc.subject Needle platy graphite en_US
dc.subject Exfoliated graphite en_US
dc.subject Microwave irradiation en_US
dc.subject Intercalation en_US
dc.title A rapid method to prepare exfoliated graphite using Sri Lankan vein graphite en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

  • 6th International Symposium - 2016 [126]
    This is the proceedings of 6th International Symposium held on 20 -21 December, 2016 at the South Eastern University of Sri Lanka

Show simple item record

Search SEUIR


Advanced Search

Browse

My Account