Optimized Production of High-Performance Activated Biochar from Sugarcane Bagasse via Systematic Pyrolysis and Chemical Activation

被引：1
作者：
Nazbakhsh, Mohammad [1 ]
Nabavi, Seyed Reza [1 ]
Jafarian, Sajedeh [1 ]
机构：
[1] Univ Mazandaran, Fac Chem, Dept Appl Chem, Babolsar 4741613534, Iran
来源：
SUSTAINABILITY | 2025年 / 17卷 / 04期
关键词：
activated biochar; sugarcane bagasse; KOH activation; D-optimal design; PROCESS PARAMETERS; CARBON PRODUCTION; SURFACE-AREA; ADSORPTION; WASTE; TEMPERATURE; BIOMASS; GREEN;
D O I：
10.3390/su17041554
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The following work deals with the preparation of highly porous activated biochar from sugarcane bagasse (SB) via potassium hydroxide activation and optimization by a D-optimal design. Activation temperatures within the range of 600 to 800 degrees C, holding times between 60 and 180 min, and KOH impregnation ratios (WKOH/WRBC) ranging between 0.5, 1, and 2 were explored with a view to enhance properties like Brunauer-Emmett-Teller (BET) surface area and total pore volume of biochar while considering mean diameter as well. Optimized conditions in this study were an activation temperature of 800 degrees C, holding time of 120 min, and KOH impregnation ratio of 1:1. The activated biochar prepared under such conditions had a very high BET surface area, 1149 m2/g, and a total pore volume of 0.53 cm3/g. This was further characterized by thermal gravimetric analysis (TGA), and Fourier transform infrared (FTIR) spectroscopy, indicating improved microporosity with a view to application in adsorption studies. This is a sustainable work to obtain economical high-performance biochar from agricultural waste for application in adsorption and catalytic processes.
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页数：21
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