甲蓝的高效吸附由由甘包衍生的聚胺碳酸改性酸
Xi Liu1, Feng Zhou1, Changrong Shi2,3
1College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
Molecules (Basel, Switzerland)
|April 26, 2025
概括
甘包油被转化为一种有效的吸附剂,用于去除甲蓝 (MB). 这种修改后的碳水化合物表现出高吸附能力和良好的再生性能,提供了一个环保的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 甘包 (SCB) 是一个丰富的农业废物.
- 从废物中开发高效的吸附剂对于环境修复至关重要.
- 甲蓝 (MB) 是废水中常见的模型污染物.
研究的目的:
- 从SCB合成一种新的吸附剂,用于去除MB.
- 为了研究修改后的碳化合物的吸附机制和容量.
- 为了评估吸附剂的再生性能.
主要方法:
- 在SCB的水热碳化 (HTC) 过程中,其次是激活,乙化,氨化和碳化,以产生聚氨基碳化改性 (ACHC).
- ACHC的系统性表征.
- 批量吸附实验以确定MB吸附能力.
- 使用吸附异热,质量转移和热力学模型进行分析.
- 密度函数理论 (DFT) 用于解释机制.
主要成果:
- ACHC的高MB吸附能力为1017.29 mg·g−1在303 K和1060.45 mg·g−1在323 K.
- 吸附遵循伪第一阶动力学和兰木尔等温,表明单层吸附.
- 这个过程是内热的,自发的,涉及化学和物理吸附机制 (静电吸引,结,π-π相互作用).
- 观察到良好的再生性能,在4个循环后剩余的容量为665.43 mg·g-1.
结论:
- 来自SCB的聚氨基碳基化改性化是一种非常有效的MB吸附剂.
- 修改过程简单,环保,经济.
- ACHC为处理MB污染的废水提供了一个可持续的解决方案.
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