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金属纳入农业废弃物玉米以为基础的生物炭作为吸收剂用于捕获CO2的吸收

Shajuyan Ahmed¹, Delwar Hossain¹, Sharmin Sultana Dipti¹

¹Chemical Engineering Research Laboratory, Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Motihar, 6205, Rajshahi, Bangladesh.

Scientific reports

|December 7, 2025

概括

这项研究通过结合和金属来增强玉米生物炭以捕获二氧化碳. 含的生物炭实现了94.6%的二氧化碳吸附效率,证明了碳捕获的有效性和经济性.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
化学工程是化学工程的重要组成部分.

背景情况:

有效和负担得起的吸附材料对于二氧化碳捕获至关重要.
来自农业废弃物的生物炭,如玉米,显示了捕获二氧化碳的潜力,但需要修改以提高效率.
现有的生物炭具有有限的二氧化碳吸附能力.

研究的目的:

为了提高玉米基生物炭的二氧化碳捕获效率.
为了研究将 (Mg) 和 (Na) 金属纳入生物炭二氧化碳吸附性质的影响.
评估改性生物炭对二氧化碳捕获系统的经济可行性和有效性.

主要方法:

玉米被烧化以产生生物炭.
生物炭通过在N2.2下的热处理将Mg和Na金属结合起来进行了修改.
使用BET,XRD,SEM,EDX,XPS和13C NMR来表征物理化学性质.
二氧化碳吸附能力在25°C和1大气环境下进行了测试.

主要成果:

含Mg的生物炭具有最高的二氧化碳吸附效率 (94.6%),其次是含Na的生物炭 (81.20%) 和原始生物炭 (64.43%).
金属的结合增强了生物炭的晶体结构,碳排序,并为吸附创造了活跃的吸附点.
EDX,XPS和13C核磁共振证实Mg含有生物炭的二氧化碳吸收更高.

结论:

用Mg修改的玉米基生物炭是捕获二氧化碳的高效和经济可行的材料.
金属的加入显著提高了生物炭的二氧化碳吸附性能.
这种改性生物炭为碳捕获技术提供了一个有前途的解决方案.

关键词:

吸附剂是一种吸附剂.生物炭是一种生物炭.捕捉捕捉捕捉捕捉捕捉二氧化碳是二氧化碳中的一种.用金属浸的金属浸.

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