使用橄石衍生活性生物炭进行高容量吸附素:对效率和机制的见解
Pratishtha Khurana1, Samreen Sran2, Ratul Kumar Das1
1Department of Civil Engineering, Lassonde School of Engineering, York University Ontario Canada satinder.brar@lassonde.yorku.ca.
RSC advances
|June 17, 2025
概括
这项研究从橄废料中开发了活性生物炭,以有效地从水中去除抗抑郁药物素 (FLX). 这种新型生物炭具有很高的吸附能力,为新出现的污染物提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
背景情况:
- 素 (FLX) 是一种被广泛处方的抗抑郁药,但由于其持久性和潜在的内分泌干扰,它会带来环境风险.
- 像FLX这样的新兴污染物需要有效的去除策略来减轻生态和健康影响.
- 农业工业废物利用为开发整治材料提供了一个可持续的途径.
研究的目的:
- 调查从橄石中提取的物理活性生物炭在去除素 (FLX) 的有效性.
- 优化生物炭激活参数,以提高FLX吸附能力.
- 为了阐明FLX在开发的生物炭上的吸附机制和动力学.
主要方法:
- 橄石衍生生物炭使用优化的CO2参数 (1000-30-600-1) 进行了物理激活.
- 进行了批量吸附实验,以确定FLX去除效率和在不同初始度 (1-50毫克L-1) 的吸附能力.
- 分析了吸附动力学和同热量 (Langmuir,伪二次),以了解相互作用机制.
主要成果:
- 优化的生物炭表现出优越的FLX吸附能力,范围从4.82到146.45毫克g-1.
- 吸附遵循兰格穆尔等温和和伪二阶动力学,表明均的表面和不可逆转的吸附.
- 关键的相互作用包括结,孔隙填充和π-π电子捐赠者-接受者 (EDA) 力量.
结论:
- 来自橄石的物理活性生物炭是一种高效的吸附剂,用于去除素 (FLX).
- 这种方法符合零废弃物原则,并为新出现的污染物的环境修复提供了可持续的解决方案.
- 该研究强调了废物材料在应对关键环境挑战方面的潜力.
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