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对二氧化碳的比较分析 竹子和皮生物炭的吸附性能
Choul Woong Kwon1, Sungho Tae2, Soumen Mandal3
1Department of Smart City Engineering, Graduate School, Hanyang University ERICA, 1271 Sa-3-dong, Sangnok-gu, Ansan 15588, Republic of Korea.
Molecules (Basel, Switzerland)
|April 26, 2025
概括
与竹子生物炭 (BB) 相比,皮生物炭 (OPB) 显示出更高的二氧化碳吸附能力. 这项研究突出了OPB的重点.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 温室气体排放需要有效的碳捕获和封存 (CCS) 策略.
- 从生物质废弃物中提取的生物炭为减少二氧化碳排放提供了一个可持续的途径.
研究的目的:
- 合成和评估竹子生物炭 (BB) 和皮生物炭 (OPB) 作为二氧化碳吸收剂.
- 为了比较二氧化碳吸附性能和BB和OPB的基本特性.
主要方法:
- 来自竹子和皮的生物炭合成.
- 使用BET表面积分析,FTIR光谱学,SEM-EDS和二氧化碳吸附异热法进行表征.
- 热重力测量分析 (TGA) 用于评估二氧化碳吸收能力.
主要成果:
- 在OPB中,BET表面积 (40.13 m2/g) 比BB (7.38 m2/g) 高.
- OPB具有更多的氨基,碳酸,和以太功能组,增强了CO2亲和力.
- 在 273 K 和 1 bar 的温度下,OPB 的二氧化碳吸附能力比 BB (14.12 cm3/g) 高 (22.83 cm3/g).
结论:
- 皮生物炭是一种有前途的材料,可以有效地捕获和封存碳.
- 生物炭的表面特性,包括表面积和功能组,对于二氧化碳吸附至关重要.
- 两种生物炭类型的二氧化碳吸收在48小时后稳定.
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