1. Preparation and adsorption behavior investigation of polypropylene/organically modified saponite nanocomposites fiber membrane with strong oil-adsorption
- Author
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Luo, Qiang, Li, Fei, Zhen, Weijun, Ge, Qing, Zhou, Yushen, Ma, Chunmei, Sun, Pengtao, Xu, Jianbo, and Chen, Buning
- Subjects
Wastewater ,Sewage -- Purification ,Engineering and manufacturing industries ,Science and technology - Abstract
To improve the adsorption and reusability of polypropylene (PP) fiber membranes, the organically modified saponite (Sap@P(St-co-MMA)) was prepared by solution polymerization. Furthermore, PP-based nanocomposite fiber membranes with strong oil adsorption, thermal stability, and reusability were prepared via melt-blown technology. The increased specific surface area of PP-based nanocomposite fiber membranes (PP-1.5%) provided more active sites for the oil adsorption. Simultaneous rheology and Fourier transform infrared measurements tests showed that Sap@P(St-co-MMA) enhanced the crystallinity of PP matrix, promoted the regular arrangement of molecules, and improved the intermolecular interaction force, which was beneficial for the oil adsorption. The adsorption of PP-1.5% (1.5 wt% addition of Sap@P(St-co-MMA)) fiber membrane for xylene and kerosene reached a maximum of 15.84 and 22.84 g [g.sup.-1], respectively. In the treatment of coal tar wastewater, the removal rate of oil can reach 62.9%, and the removal rate can still reach 51.17% after five cycles of experiments. In summary, PP-1.5% fiber membrane does not produce secondary pollution to the environment, and is a kind of oil removal material with good application prospect. Highlights * PP-based nanocomposites fiber membrane with strong oil adsorption was prepared. * Organically modified saponite had strong heterogenous nucleation for PP matrix. * Sap@P(St-co-MMA) increased the specific surface area of PP-based fiber membrane. KEYWORDS adsorption behavior, organically modified saponite, poly (propylene) nanocomposites fiber membranes, reusability, 1 | INTRODUCTION In recent years, with the rapid development of various enterprises such as coal chemical industry, resulting in the increasing of oily wastewater as well as the frequent [...]
- Published
- 2024
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