使用吸附同热法,动力学和热力学去除阴阳性染料的尼姆-多 (?? 烯酸) 基吸附剂的评估:线性回归模型
1Department of Chemistry, Birla Institute of Technology, Mesra, Ranchi 835215, India.
International journal of biological macromolecules
|March 18, 2025
概括
基于尼姆的水凝有效地从水中去除诸如罗达胺B和甲基蓝之类的阴阳性染料. 这种可持续吸附剂具有高容量和可重复使用性,解决了对织废水污染的担忧.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
背景情况:
- 阴阳染料污染对健康构成重大风险,原因是毒性,致病性和致癌性.
- 现有的染料吸附剂往往产生二次废物,是不可生物降解的,昂贵的,能源密集的.
- 尼姆 (Ng) 是一种可持续的替代品,因为它具有可再生性,生物降解性,低成本和无毒性.
研究的目的:
- 合成和评估一种基于尼姆的新型水凝 (Ng-g-p(AA) -cl-MBA) 用于吸附阴性染料.
- 为了优化吸附参数,并描述水凝在水处理应用中的性能.
- 研究开发的水凝吸附剂的吸附机制和可重复使用性.
主要方法:
- 用于水凝合成的自由基聚合技术.
- 通过FT-IR,TGA,XRD,BET和FE-SEM分析进行系统的表征.
- 优化吸附参数:初始度,pH值,温度,吸附剂剂量和接触时间.
主要成果:
- Ng-g-p ((AA) -cl-MBA水凝显示出高吸附能力:罗达胺B的552.49 mg/g和甲蓝的421.94 mg/g.
- 吸附遵循兰格穆尔模型和伪二阶动力学,表明一种外热和自发的过程.
- 水凝表现出极好的再生和可重复使用性,这对于实际的染料废水处理至关重要.
结论:
- 尼姆果衍生的水凝是一种高效和高性价比的吸附剂,用于化染料.
- 该材料的特性使其成为处理染料污染的工业废水的有希望的解决方案.
- 这项研究强调了生物聚合物基材料在可持续环境修复中的潜力.
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