Sensing Material and Design of an Optical Sensor for Detection of Arsenic-A Review
Tanmay Sardar, Shivani Pandey, Satanand Mishra, Skylab P. Bhore
Abstract
Degradation of water quality is a worldwide issue. This study is about sensing one of those parameters with the help of optical phenomena. An optical phenomenon like absorption, Scattering, Fluorescence, and Surface Plasmon Resonance (SPR) have large potential in the sensing world with the help of different materials and designs. Going towards quantum level with materials like Au, Ag, Carbon Quantum Dots (CQDs), Graphene Quantum Dots (GQDs) are changing the scenario. the parameters for sensors are mainly dependent on design and materials. Parameters like selectivity, sensitivity, range, Limit of Detection (LOD), time, cost, etc. show the nobility of the sensors. Different phenomena depend on materials that are getting used for sensing as a receptor. Designing of the device is changing from laboratory to portable sizes. Smartphone base sensors (SBSs) are getting used for real-time sensing. Multiple parameters and contaminant can be detected simultaneously in real-time. Different researchers have designed different sensors with several aspects. The conceptual model of the reviewed designs can be used for detection of Arsenic. We aim to review and select the most suitable material and design for the detection of As(III).