Investigation of Recyclable Waste and Chemical Derived Carbon Dots for Fluorometric Detection of Environmental Toxins and Anti Counterfeiting Applications

Abstract

The scientific community is very concerned about the toxicity of heavy metal newlineions and nitro-explosive compounds since they are highly harmful and non-biodegradable newlinecontaminants of natural resources. Therefore, it is especially important to be aware of the newlinepresence of metal ions in the aqueous system. The last 20 years have seen an abnormally newlinehigh emission of organic pollutants as a result of industrialization and population growth. newlineThe possible release of organic contaminants from industries such as printing, textiles, newlinepaint, insecticides, and pharmaceuticals can be attributed to these two problems. Anticounterfeiting newlinetechnology is in great demand due to the devastation that counterfeiting newlinedoes to both human health and the world economy. High-security anti-counterfeiting newlinematerials in a range of colours and intricate or multiple authentication systems are newlinerequired to stop counterfeiting. This thesis describes the use of carbon-based newlinenanomaterials in anti-counterfeiting and detection of organic contaminant applications. newlineThe technological benefits of carbon-based nanomaterials, such as graphene newlineoxide (GO), carbon nanotubes (CNTs), fullerene (C60), graphene quantum dots (GQDs), newlineand carbon dots (CDs), have been actively pursued over the last 20 years. CDs have newlinegained prominence due to their powerful fluorescence, adjustable luminescence, and easy newlinesynthesis method. The unique qualities of CDs have created prospective needs in the field newlineof sensors and fluorescence-based applications. The main goal of this doctoral research newlineproject is to fabricate a carbon dots-based sensor probe from waste dry-cell batteries and newlinechemical sources in order to detect the organic pollutants in water. The experimental data newlineneeded to understand how emission is quenched is presented newline