增强的疏水型ZSM-5,在高湿度条件下具有高烯捕获能力
Xingyuan Liu1, Zhifei Hao1, Ruyin Yu1
1College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China; Inner Mongolia Key Laboratory of Efficient Cyclic Utilization of Coal-Based Solid Waste, Hohhot 010051, China; Key Laboratory of Resource Circulation at Universities of Inner Mongolia Autonomous Region, Hohhot 010051, China.
The Science of the total environment
|June 21, 2023
概括
使用西兰酸对ZSM-5的疏水性修饰在高湿度下增强了多烯吸附. 这种改善的耐水性使得ZSM-5成为工业挥发性有机化合物 (VOC) 的更好的吸附剂.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 工业挥发性有机化合物 (VOC) 由于其高度和存在于潮湿条件下,造成环境挑战.
- 吸附剂的性能通常会受到高湿度的影响,因此需要提高耐水性.
- ZSM-5分子是有效的吸附剂,但在潮湿的环境中需要增强的疏水性.
研究的目的:
- 开发ZSM-5的疏水修饰方法,以提高其在高湿度下吸附VOC的性能.
- 调查甲基三西西兰和甲基三西兰作为ZSM-5的疏水修饰剂的有效性.
- 评估修改后的ZSM-5在高湿度条件下对二烯的吸附能力.
主要方法:
- 使用甲基三西西兰和甲基三西兰对ZSM-5的疏水性修改.
- 使用富里埃红外光谱和X射线光电子光谱对修改后的ZSM-5进行了表征.
- 在80%的相对湿度下进行吸附-脱附实验,以评估二烯的吸收.
主要成果:
- 在ZSM-5表面成功地将疏水性甲基和甲基移植到ZSM-5.
- 显著增强了修改后的ZSM-5的疏水性.
- 与原始材料相比,在80%的相对湿度下,修改后的ZSM-5的多烯吸附能力增加了6.5倍.
- 在商业ZSM-5上证明了修改方法的可行性.
结论:
- 疏水性修改有效地提高了ZSM-5在高湿度下对水的耐水性和烯吸附能力.
- 反应机制涉及到通过基基组在ZSM-5表面上接种疏水组.
- 这种方法提供了一种可行的策略,用于提高ZSM-5在湿环境中处理工业VOC的性能.
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