通过聚修饰的α纳米颗粒去除酸G染料
Thi Hai Yen Doan1,2, Long Van Dang2, Thi Thuy Trang Truong2
1Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Vietnam.
Chemistry, an Asian journal
|July 13, 2023
概括
合成了具有高正电荷的聚 ((乙烯基基三甲基化物) 并用于修改α-氧化物. 这种修改显著提高了酸色G染料的去除,证明了可重复使用和高性能吸附剂.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 聚合物化学 聚合物化学
背景情况:
- 亚染料由于其持久性和毒性,造成环境风险.
- 从废水中有效地去除酸G (AOG) 是至关重要的.
- 吸附剂的表面修改可以提高污染物去除效率.
研究的目的:
- 合成一个带正电荷的聚合物,聚乙三甲基化物 (PVBMA).
- 使用PVBMA进行α-Al2O3.3.的表面修饰.
- 评估PVBMA修饰的α-Al2O3在吸附性去除AOG的性能.
主要方法:
- 合成PVBMA,产量达到82%.
- 使用1H NMR和SEC (Mw = 343.45 g/mol, Đ = 2.4) 进行PVBMA的表征.
- 在各种条件下使用PVBMA修饰的α-Al2O3进行AOG去除的吸附实验.
主要成果:
- 经PVBMA修饰的α-Al2O3在所有pH值中显著增强了AOG去除.
- 最佳吸附条件是pH8,低离子强度,15分钟,5毫克/毫升吸附剂.
- 吸附遵循兰格穆尔等温和和伪二次动力学,由静电吸引驱动.
- 高可重复使用性,在6个循环后~90.1%的AOG去除.
结论:
- PVBMA是修改α-Al2O3表面的有效剂.
- 用PVBMA修饰的α-Al2O3是一种高性能,可重复使用的吸附剂,用于去除AOG.
- 该研究强调了染料废水处理的有希望的战略.
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