Potential Natural Fibrous Filter against PM2.5 from Juncus Effuses

ABSTRACT

The internal morphology and micro-pore distribution of Juncus effuses (JE) plant fiber were characterized by scanning electron microscopy (SEM). The porosity parameters and pore size characteristics of JE fiber were measured by a mercury intrusion meter. Fourier transform infrared (FTIR) spectroscopy was used to reveal the chemical composition of JE fiber. Thermal gravimetric analysis (TGA) was used to reveal the thermal degradation behavior of JE fiber. The X-ray diffraction (XRD) technique was used to evaluate the crystal structure of JE fiber. Then the filtration performance of JE filters with lengths of 2.5, 5, 7.5, and 10 cm against particle matter (PM)10, PM2.5, and PM1.0 were compared on a home-made apparatus.

摘要

采用扫描电镜（SEM）对灯心草植物纤维的内部形态和微孔分布进行了研究. 用压汞仪测定了JE纤维的孔隙率参数和孔径特性. 采用傅立叶变换红外光谱（FTIR）分析了JE纤维的化学组成. 用热重分析（TGA）研究了JE纤维的热降解行为. 采用X射线衍射（XRD）技术对JE纤维的晶体结构进行了表征. 在自制装置上比较了长度为2.5、5、7.5和10cm的JE过滤器对颗粒物（PM）10、PM2.5和PM1.0的过滤性能.

KEYWORDS:

• Juncus effuses
• natural fiber
• air filter
• particulate matter

关键词:

• 灯心草
• 天然纤维
• 空气过滤器
• 颗粒物

Additional information

Funding

This work was supported by the the National Natural Science Foundation of China [51773158]; the Key Laboratory of Textile Fiber&Product (Wuhan Textile University), Ministry of Education. [FZXW2017013].