来自枣树废物的阳离子凝在废水处理中用于染料吸附的应用
Farid Fadhillah1, Abdulrahman G Alhamzani2, Khaled Bin Bandar3
1Chemical Engineering Department, College of Engineering, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia.
Gels (Basel, Switzerland)
|October 25, 2024
概括
研究人员从枣树废物中开发出一种阳离子纤维素纳米纤维 (CNF) 生物吸收剂. 这种可持续材料有效地从水中去除了阴甲蓝色染料,表明了废水处理应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 生物技术是生物技术.
背景情况:
- 枣树的废物是一种丰富的,未得到充分利用的资源.
- 污染的水与阴离子染料带来了环境挑战.
- 纤维素纳米纤维 (CNF) 显示出作为可持续吸附剂的前景.
研究的目的:
- 从枣树废物中开发一种阳离子纤维素纳米纤维 (CNF) 生物吸附剂.
- 为了评估这个CNF生物吸附剂在去除污染水中的甲蓝染料的效率.
- 研究甲蓝染料对CNF的吸附机制和动力学.
主要方法:
- 枣树叶通过酸和化处理来分离纤维素纸.
- 阳离子CNF通过进一步的酸处理和离心来合成.
- 使用超声波实现了生物凝的形成.
- 在不同的染料度,温度,接触时间和pH下研究了甲蓝染料的去除.
- 应用了吸附等温法 (朗穆尔,弗洛伊德利希) 和动力模型 (伪二阶,埃洛维奇).
主要成果:
- 开发的阳离子CNF有效地去除了甲蓝色染料.
- 在60°C时最大的去除效率为5mg/g.
- 吸附遵循兰迈尔和伪二阶模型,表明单层化学吸附.
- 确定了染料度,温度,接触时间和pH的最佳吸附条件.
结论:
- 从枣树废物中提取的阳离子CNF是一种可行的和可持续的生物吸收剂.
- 该材料显示出从废水中去除甲基蓝等阴阳性染料的巨大潜力.
- 该研究强调了农业废物利用对环境修复的价值.
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