Fabrication and analysis of starch-based green materials

Abstract Microwave-assisted carbonization of aqueous starch suspension mediated by sulfuric and phosphoric acids is utilized to synthesize Carbon-based quantum dots (C-QDs). The synthesized C-QDs have displayed blue, green, and yellow luminescence without adding any surface-passivating agent, UV–vis spectroscopy. The UV–vis spectroscopy is employed to analyze C-QDs to measure the optical response of the organic compound. The energy gaps revealed narrow sizing of C-QDs in the semiconductor range. A survey on starch is reviewed. The optical refractive index and dielectric constant are investigated. The C-QDs size distribution are characterized. The results present an easy route to big scale C-QDs materials production. The future of starch is presented.