Green synthesis and characterisation of rice water derived fluorescent carbon dots

Abstract

Abstract In this article, we report a facile green synthesis of carbon dots (C-dots) with excellent blue emission using only rice water as the source. The C-dots are synthesised at 200 °C by a simple calcination method. Furthermore, the structural and optical characterisation of the as-synthesised C-dots reveals their quality without any further chemical modification. These non-toxic C-dots have good water solubility and stability. The anti-oxidant ability of these C-dots makes them suitable material for fruit storage applications. Hence the C-dots synthesised in the present study is a promising optical material and suitable for fruit preservation applications.