Generation and Characterization of Adsorbents Derived from Unmodified Peanut and Egg Shells

Abstract: Efficient adsorbents equivalent to industrially obtainable activated carbon is drawing huge attention as a proficient precursor foradsorption process. The current study is zeroed on the generation and characterization of unmodified adsorbents from peanut shell (PNS) and Eggshell (EGS) by employing standard methods (ASTM and AOAC).The physicochemical characteristics were investigated up for both PNS and EGS adsorbents, and the outcome revealed the following biomass range: moisture content (15.20  0.101 to14.50  0.110)%, volatile matter (11.20  0.110 to10.30  0.011)%, ash content (9.10  0.111 to8.80  0.110)%, pH (6.50  0.010 to6.40  0.011) fixed carbon (66.40  0.010 to 64.50  0.110)%, particle size (300.00  0.000) µm, bulk density (1.29  0.000 to 0.540  0.000)g/cm3 , and surface area (750.00  0.000 to 680.00  0.100)m2 /g.Scanning electron microscope (SEM), and Fourier transform infrared spectrometer (FT-IR) were utilized to study the surface morphology and functional groups accordingly. The Electron dispersive X-ray spectrometer uncovered the elemental components of the adsorbents. The adsorbents had high fixed carbon contentsandlow inorganic, in conjunctionwith high surface area, making them valuable adsorbents. The FTIR examinationrevealedthepresence of functional groups such asNH, C≡C,C=O, C-H and OH which are potential adsorption sitesin addition to the well-developedpore structures from SEM studies.In contrast, EDX uncovered the presence of components like carbon, oxygen, calcium, magnesium and silicon in percent weightswith PNS and EGS having carbon contents of 91.12 and 40.11% respectively. Generally, the study adsorbents possess the potential to be efficientand eco-friendly precursors fortheadsorption process.