Rice Husk derived Activated Carbon for the Adsorption of Scarlet RR an Anionic Disperse Dye

Abstract

Bioinspired mesoporous activated carbon was synthesized using rice husks. SEM (scanning electron microscopy), XRD (X-ray powder diffraction), FTIR (fourier transform infrared spectroscopy), and BET(Brunauer-Emmett-Teller) were used to detrmine the textural qualities and physicochemical properties of the produced activated carbon .Monolayer and multilayer isotherm models were evaluated to examine the adsorption investigations on hydrophobic Scarlet RR. The Langmuir adsorption isotherm best explained the results because the monolayer's adsorption capacity was 996 mg/g at adsorbent dosage of 1.5 g/L. The results suggested that bio-inspired activated carbon would work well as an adsorbent for dye removal from polluted water.

Two-step Heating Effect of Hydrochar-MnO_2 Formation and Their Electrochemical Performances

“…4 for HC-KS and HC-KN. The natural structures of carbon can be attributed to the broad C (002) diffraction peak (2θ = 15-30°) 25) . The patterns of both have characteristic peaks that can be carefully observed at 12.9° (110), 18.34 (200), 26.2 (200), 37.6° (211), and 60.26° (521) and are related to the standard of JCPDS 00-044-0141for α-MnO 2 .…”

High Quantum Yield Nitrogen-Carbon Dots (N-CDs) from Plastic Waste

“…6, N-CDs 56 have a low degree of crystallinity, indicating amorphous structures. The peak observed at 2θ = 27.9° with an interplanar distance of 0.32 nm depicts the graphite (002) structure (JCPDS 00-012-0212) 29) . The (002) orientation corresponds to the vertical axis, or c-axis, of the graphite unit cell, which is oriented perpendicular to the hexagonal planes.…”