来自子的高性能活性炭用于去色剂:对异热和热力学研究
Junaid Saleem1, Zubair Khalid Baig Moghal2, Snigdhendubala Pradhan1
1Division of Sustainable Development, College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation Doha Qatar jsaleem@hbku.edu.qa.
RSC advances
|October 25, 2024
概括
来自子的高性能活性炭 (AC) 有效地从废水中去除染料. 用NaOH激活的AC显示出优异的吸附性,在更高的温度下容量增加.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 水处理 处理水的方法
背景情况:
- 染料污染废水造成环境和健康风险.
- 开发高效和可持续的吸附剂来去除染料至关重要.
研究的目的:
- 从子中生产高性能活性炭 (AC).
- 调查从CS衍生出的AC用于从水溶液中去除染料的有效性.
- 探索激活方法和表面功能化对吸附性能的影响.
主要方法:
- 子被加工成生物炭,然后使用酸 (H2SO4) 和 (NaOH) 方法激活.
- 在生物炭中应用了功能化前后技术.
- 进行了吸附实验,以评估在不同条件下 (剂量,度,pH,温度) 的染料去除效率.
- 兰木尔异热模型被用于分析吸附数据.
- 进行了热力学分析.
主要成果:
- 与H2SO4激活的AC相比,NaOH激活的AC显示出明显更高的吸附能力.
- 在338K时,NaOH激活AC的最大吸附能力达到了1000mgg-1.
- 吸附遵循兰格穆尔模型,表明单层吸附.
- 较高的温度有利于染料吸附,证实了内热过程.
- 确定了染料去除的最佳条件.
结论:
- 从子中提取的活性炭是一种高效的吸附剂,用于去除染料.
- 与H2SO4激活相比,NaOH激活产生了更高的性能.
- 该过程是可持续的,并为废水处理提供了有价值的途径.
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