活性炭
蔗渣
吸附
材料科学
扫描电子显微镜
解吸
响应面法
比表面积
打赌理论
化学工程
傅里叶变换红外光谱
介孔材料
碳纤维
核化学
化学
有机化学
色谱法
复合材料
复合数
制浆造纸工业
催化作用
工程类
作者
Atiqa Rahmawati,Fadzkurisma Robbika,Yuafni Yuafni
出处
期刊:pertanika journal of science and technology
日期:2024-01-15
卷期号:32 (1): 419-436
标识
DOI:10.47836/pjst.32.1.22
摘要
Microwave-assisted activation is a green technology technique that can synthesize activated carbon from bagasse. In this study, microwave-assisted ZnCl2 chemical activation was applied to convert bagasse to activated carbon (BAC). Activating activated carbon was optimized using surface response methodology (RSM). The Box-Behnken (BBD) design was used to assist in the optimum synthesis condition, with the loading of ZnCl2 concentration (A: 10–50% w/v), heating time (B: 2–12 min), and microwave power (C: 150–800 W). The BAC was characterized using Brunauer-Emmett-Teller (BET), Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FT-IR), and moisture content. The findings of the BAC optimization were at a ZnCl2 concentration of 24.281 (% w/v), 12 min of heating time, and 800 W of microwave power. The characterization result shows that BACop has mesoporous carbon and a desirable surface area of 446.874 m2/g, average pore size of 4.071 nm, pore volume of 0.054 cc/g, and total pore volume of 0.2531 cc/g. SEM analysis revealed that microwave-generated pore structures lead to the ZnCl2 activation process. The pore structures of the raw material and activated carbon were different. The FT-IR analysis shows the existence of functional groups as well as changes in functional groups from raw material to activated carbon. The moisture content study findings are 5.51 to 9.21% in accordance with the Indonesian National Standard (SNI) 06-3730-1995. The isothermal adsorption-desorption process is classified as type IV adsorption with hysteresis loop H4, suggesting that the pore distribution in activated carbon is mesoporous with a tiny pore width and slit-shape pore materials.
科研通智能强力驱动
Strongly Powered by AbleSci AI