Universiti Teknologi Malaysia Institutional Repository

A simple route to layer-by-layer assembled few layered graphene oxide nanosheets: Optical, dielectric and antibacterial aspects

Jilani, Asim and Othman, Mohd. Hafiz Dzarfan and Ansari, Mohammad Omaish and Oves, Mohammad and Alshahrie, Ahmed and Khan, Imran Ullah and Sajith, V. K. (2018) A simple route to layer-by-layer assembled few layered graphene oxide nanosheets: Optical, dielectric and antibacterial aspects. Journal of Molecular Liquids, 253 . pp. 284-296. ISSN 0167-7322

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.molliq.2018.01.042

Abstract

Thin film is a subject of great interest for energy and environmental applications. Graphene oxide (GO) in this regard can play a vital role in thin film technology because of its extraordinary optoelectronics and environmentally friendly characteristics. Despite the fast development in the GO based material, there are very few reports on optoelectronics and antibacterial activity of GO thin films. Herein, GO thin films of different concentrations have been deposited on glass substrate by spin coating technique. The optical and dielectric properties of GO thin films were determined by the UV–visible technique. Crystalline nature, grain sizes, dislocation density, and lattice strain were examined through X-ray diffraction. The possible change in the π-π* and n-π* electronic transition and the band gap evaluations of GO thin films were also calculated. Raman spectroscopy was applied to check the quality and defects linked to sp2 breathing modes of GO thin films. Surface chemical state and ratio of C[dbnd]C, C–O, O[dbnd]C–OH, O–C, and ([dbnd]O)–O were investigated through X-rays photoelectron spectroscopy. GO thin films were also subjected for antibacterial activity tests towards Bacillus cereus and Serratia marcescens and significantly inhibition of bacterial growth in both solid and liquid media was observed. The results emphasise the potential uses of GO thin films in optoelectronics, environmental, and medical device coating for protection against various infectious agents.

Item Type:Article
Uncontrolled Keywords:Antibacterial, Optical
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:86340
Deposited By: Widya Wahid
Deposited On:31 Aug 2020 21:59
Last Modified:31 Aug 2020 21:59

Repository Staff Only: item control page