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对Ti₃C₂T_xMXene进行实验性探索,以有效和深入地去除水样中的

Shanli Nezami¹, Ahad Ghaemi², Taher Yousefi³

¹School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, NarmakTehran, 16846, Iran.

Scientific reports

|November 11, 2024

概括

这项研究探讨了使用Ti3C2Tx MXene的吸附. 与Ti3C2(OH) x相比,Ti3C2Fx表现出更高的吸附能力,这种能力归因于化物.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
电化学电化学电化学

背景情况:

碳化 (Ti3C2Tx) MXene是吸附应用的一个有前途的材料.
了解吸附机制对于水处理和资源回收至关重要.
表面功能组显著影响MXene材料的吸附性质.

研究的目的:

研究吸附到Ti3C2Tx的机制和行为.
评估合成方法对Ti3C2Tx结构和吸附性能的影响.
通过响应表面方法来优化和建模吸附过程.

主要方法:

通过使用HF和LiF/HCl溶液对Ti3AlC2进行选择性脱皮来合成Ti3C2Tx.
使用X射线衍射,SEM,EDX,BET和FTIR分析进行表征.
吸附实验,兰木尔异热模型和热力学分析.

主要成果:

对于,Ti3C2Fx的吸附强度 (182.5 mg/g) 比Ti3C2 (((OH) x (99 mg/g) 高.
在Ti3C2Fx上的吸附遵循了朗迈尔模型,表明单层吸附.
吸附过程是自发的和内热的,Ti3C2Fx在4个吸附-脱附周期中保持稳定.

结论:

Ti3C2Fx是一种有效的吸附剂,可以去除,性能优于Ti3C2(OH) x.
增强的吸附与Mg2+对F-功能群的更大的亲和力有关.
优化条件和兰木尔建模为吸附机制和再生潜力提供了洞察力.

关键词:

在现场HF和HF.在Mg2+吸附过程中,Mg2+吸附在 RSM RSM 中.在Ti3AlC2中.Ti3C2Txx 的时间

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