Baikousi, M.; Gantzoudi, A.; Gioti, C.; Moschovas, D.; Giannakas, A.E.; Avgeropoulos, A.; Salmas, C.E.; Karakassides, M.A. Hydrogen Sulfide Removal via Sorption Process on Activated Carbon–Metal Oxide Composites Derived from Different Biomass Sources. Molecules2023, 28, 7418.
Baikousi, M.; Gantzoudi, A.; Gioti, C.; Moschovas, D.; Giannakas, A.E.; Avgeropoulos, A.; Salmas, C.E.; Karakassides, M.A. Hydrogen Sulfide Removal via Sorption Process on Activated Carbon–Metal Oxide Composites Derived from Different Biomass Sources. Molecules 2023, 28, 7418.
Baikousi, M.; Gantzoudi, A.; Gioti, C.; Moschovas, D.; Giannakas, A.E.; Avgeropoulos, A.; Salmas, C.E.; Karakassides, M.A. Hydrogen Sulfide Removal via Sorption Process on Activated Carbon–Metal Oxide Composites Derived from Different Biomass Sources. Molecules2023, 28, 7418.
Baikousi, M.; Gantzoudi, A.; Gioti, C.; Moschovas, D.; Giannakas, A.E.; Avgeropoulos, A.; Salmas, C.E.; Karakassides, M.A. Hydrogen Sulfide Removal via Sorption Process on Activated Carbon–Metal Oxide Composites Derived from Different Biomass Sources. Molecules 2023, 28, 7418.
Abstract
Biomass exploitation is a global trend due to the circular economy and the environmentally friendly spirit. Numerous applications are now based on the use of biomass derived products. Hydrogen sulfide (H2S) is a highly toxic and environmentally hazardous gas, which emitted from various processes. Thus, the efficient removal of this toxic hazardous gas following cost effective processes is an essential requirement. In this study, we present the synthesis and characterization of biomass-derived activated-carbon/zinc-oxide (ZnO@AC) composites from different biomass sources as potential candidates for H2S sorption. The synthesis involved a facile method for activated carbon production via pyrolysis and chemical activation of biomass precursors (spent coffee, Aloe-Vera waste leaves, and corncob). Activated carbon production was followed by the incorporation of zinc oxide nanoparticles into the porous carbon matrix using a simple melt impregnation method. The synthesized ZnO@AC composites were characterized using X-ray diffraction (XRD), infrared spectroscopy (IR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and nitrogen porosimetry. The H2S removal performance of the ZnO@AC composites was evaluated through sorption experiments using a handmade apparatus. Our findings demonstrate that the Aloe-Vera, Spent-coffee, and Corncob derived composites exhibit superior H2S sorption capacity up to 106 mgH2S/gads., 66 mgH2S/gads., and 47 mgH2S/gads. respectively.
Chemistry and Materials Science, Chemical Engineering
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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