尼姆生物质衍生碳量子点通过一步超声波法合成,用于环保的甲蓝色染料去除
Zakriya Waseem Basha1, Sarangapani Muniraj2, Annamalai Senthil Kumar3
1P.G. & Research Department of Chemistry, RKM Vivekananda College (Autonomous), Mylapore, Chennai, 600004, India.
Scientific reports
|April 27, 2024
概括
研究人员开发了一种新的方法,使用尼姆树皮碳点 (BCD) 来有效地去除甲蓝色染料并从水中回收. 这种可持续的方法提供了高吸附能力和出色的再生潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 纳米技术 纳米技术
背景情况:
- 由合成染料污染的废水构成了严重的环境威胁.
- 开发有效和可持续的吸附剂来去除染料至关重要.
- 来自生物质的碳点为环境修复提供了独特的特性.
研究的目的:
- 用一种简单的超声波方法从尼姆树皮中合成生物质碳点 (BCD).
- 调查BCD作为液相吸附剂的应用,用于去除甲蓝 (MB) 染料.
- 评估MB染料BCD的吸附能力,再生效率和机制.
主要方法:
- 从Azadirachta indica (neem) 树皮粉末中合成BCD的一步超声波合成.
- 使用UV-Vis,FTIR,拉曼,XRD,HRTEM,FESEM,EDAX和Zeta潜力进行BCD的表征.
- 在液相中使用BCD通过in-situ沉进行MB染料的再生吸附.
- 吸附异温和运动研究,热力学分析和染料回收实验.
主要成果:
- 成功合成和表征了BCDs.
- 实现了MB染料的高吸附能力 (605毫克g-1) 和去除效率 (64.7%).
- 吸附遵循兰格穆尔等温和和伪二阶动力学,表明一种自发的,外热的和物理吸附过程.
- 使用乙醇证明了MB染料 (64%) 的有效恢复.
结论:
- 尼姆树皮衍生的BCD是有效的,可再生的液相吸附剂,用于去除甲蓝色染料.
- 这种方法提供了一种可持续且高效的方法来处理染料污染的废水.
- 该BCD显示了从工业废水中回收有价值的化有机染料化合物的潜力.
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