吸附
热重分析
活性炭
玉米芯
材料科学
热解
生物量(生态学)
化学工程
硫化氢
吸附
化学
有机化学
冶金
原材料
硫黄
海洋学
工程类
地质学
作者
Maria Baikousi,Anna Gantzoudi,Christina Gioti,Dimitrios Moschovas,Aris E. Giannakas,Apostolos Avgeropoulos,Constantinos E. Salmas,Michael A. Karakassides
出处
期刊:Molecules
[MDPI AG]
日期:2023-11-03
卷期号:28 (21): 7418-7418
被引量:1
标识
DOI:10.3390/molecules28217418
摘要
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 is 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.
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