石墨烯氧化物间接的Alk-MXene吸附剂,有效地从水溶液中去除马六合绿和刚果红
Wansheng Li1, Jiawei Tong1, Guangfen Li1
1State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, China.
Chemosphere
|May 22, 2024
概括
一种新的AMXGO吸收剂有效地从废水中去除了马六合绿色和刚果红色染料. 这种先进的材料结合了性MXene和石墨烯氧化物,具有很高的吸附能力和工业染料净化潜力.
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:
- 废水处理需要有效的吸附剂来去除污染物.
- 开发具有高吸附能力的新材料对于环境修复至关重要.
研究的目的:
- 为了制造和描述一种新的AMXGO吸收剂来去除染料.
- 研究马六合绿和刚果红的吸附性能和机制.
主要方法:
- 通过将石墨烯氧化物插入化MXene,制造AMXGO吸收剂.
- 使用FTIR,XRD,SEM,TG和BET分析进行表征.
- 吸附实验,以评估在各种条件下的染料去除效率和能力.
主要成果:
- AMXGO展示了一个3D分层结构,含有丰富的氧基和改善的热稳定性.
- 与化的MXene相比,AMXGO1的表面积和毛孔体积显著增加.
- 马拉绿的最大吸附能力为1111.6 mg/g,刚果红的最大吸附能力为1133.7 mg/g,去除率>92%.
- 吸附动力学遵循伪二阶模型,吸附同热量适合弗洛伊德利希模型.
结论:
- 吸附剂AMXGO在从废水中去除阴离子和阴离子染料方面表现出卓越的有效性.
- 协同效应包括静电吸引力,π-π相互作用,间隙和孔隙填充驱动高吸附性能.
- AMXGO为染料污染废水净化中的实际应用提供了一个有前途的材料.
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