Facile synthesis of fluorescent carbon nanodots from starch nanoparticles

Suk, Fun Chin and Siti Nur Akmar, Binti Mohd Yazid and Suh, Cem Pang and Sing, Muk Ng (2012) Facile synthesis of fluorescent carbon nanodots from starch nanoparticles. Materials Letters, 85. pp. 50-52. ISSN 0167577X

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Abstract

Fluorescent carbon dots were synthesized by the carbonization of preformed native sago starch nanoparticles, followed by surface oxidation in an aqueous medium. The morphology and particle sizes of carbon nanodots (CDs) were observed to be very similar to starch nanoparticles that were used as precursors. The particle sizes of CDs synthesized in this study were within the range 50–80 nm, which were much larger than those of very tiny CDs (1–5 nm) previously reported. The CDs portrayed fluorescent with constant emission wavelength peak at 430 nm when excited with various higher energy photons. The non-shifting of the emission wavelength peak suggested that CDs prepared in this study were highly homogenous and possessed mono-dispersed physiochemical properties.

Item Type: Article
Uncontrolled Keywords: Carbon nanodots, Fluorescent, Starch nanoparticles, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: S Agriculture > S Agriculture (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 14 Jan 2016 07:52
Last Modified: 14 Jan 2016 07:52
URI: http://ir.unimas.my/id/eprint/10211

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