ABSTRACT
Global pollution has increased due to the continuous release of contaminants into the environment. An eco-friendly method has been used to combat environmental pollution. Many are interested in removing pollutants by biosorption using nano-biosorbents. Nano-biosorbent is essential for the effective and affordable decontamination of polluted materials. Agricultural waste, biomass, biological waste, bacteria, fungi, algae, and metal nanoparticles may all be used in its synthesis. Nano-biosorbents may be analyzed using a variety of spectroscopic and microscopic methods, including UV Visible diffuse reflectance spectra (UV-DRS), Fourier transform infrared spectroscopy (FT-IR), photo luminescence, Brunauer–Emmett–Teller (BET), Field emission Scanning Electron Microscopy (FE-SEM), High-resolution transition electron microscopy (HR-TEM), Energy-dispersive X-ray spectroscopy (EDX), X-ray Powder Diffraction (XRD), and Dynamic light scattering (DLS). Nano-biosorbents are cheaper and more effective than other methods for removing contaminants substances from environmental matrices. Nano-biosorbents are renewable, sustainable, greener, and eco-friendly materials used to remove pollutants. Further, by using these nano-biosorbents in the electrochemical sensing has got many applications such as in clinical diagnostics, environmental monitoring, food freshness, and bioprocess monitoring. This chapter discusses the various electrochemical method, immobilization processes, and strategies for producing nano-biosorbent. Further, various electrochemical techniques used for detecting these nano-biosorbents were also explained.
