比较Cd (II) 吸附在红素和基于多糖的聚合物上的吸附
Elena Ungureanu1, Maria E Fortună2, Denis C Țopa1
1"Ion Ionescu de la Brad" Iasi University of Life Sciences, 3 Mihail Sadoveanu Alley, 700490 Iasi, Romania.
Polymers
|September 28, 2023
概括
未经修改的Sarkanda草的红素有效地从水中去除 (II). 这种环保生物聚合物为重金属修复的昂贵合成吸附剂提供了经济有效的替代品.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
背景情况:
- 重金属,如 (II) (Cd (II)),对生态系统和人类健康构成重大风险.
- 对于大规模应用,传统的重金属去除方法往往是昂贵或低效的.
- 红是一种丰富的芳香生物聚合物,来自红纤维素生物质,具有潜在的可持续吸收剂.
研究的目的:
- 为了评估从水溶液中去除Cd (II) 的未经修改的Sarkanda草木木质素的吸附性能.
- 为了比较红素的效率与化学功能化和原生多糖化合物聚合物.
- 为了研究实验参数对Cd (II) 被素吸附的影响.
主要方法:
- 进行了静态批量吸附实验.
- 吸附平衡是使用弗洛伊德利希和兰格穆尔等热量来建模的.
- 使用Lagergren I和Ho和McKay II模型分析了吸附动力学.
- 对番茄种子 (Lypercosium esculentum) 的生物测试评估了红素的影响.
主要成果:
- 未经修改的Sarkanda草的红素显示出显著的Cd (II) 吸附能力.
- 宁被证明是昂贵的多糖吸附剂的经济有效的替代品.
- 动力和异热模型为吸附机制提供了洞察力.
- 生物测试表明,红素有潜力减轻种子上的重金属压力.
结论:
- 未经修改的Sarkanda草木质素是一种有希望的,经济的吸收剂,用于从水溶液中去除Cd (II).
- 在水处理中,素可以有效地取代较不经济的多糖基吸附剂.
- 需要进一步研究红素在重金属修复中的应用.
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