ABSTRACT

In this work, “green” oil sorbent was prepared from nettle fibers by hot water treatment. Effects of hot water treatment temperature, oil-sorbent contact time and reusability on oil absorbency were investigated systematically. Maximum oil absorbency of 15.89 g/g against engine oil and 13.10 g/g against diesel oil was achieved at hot water treatment temperature 100°C and oil-sorbent contact time 15 min. SEM was used to characterize the surface morphology and FTIR confirmed the chemical changes after hot water treatment. Thermal stability of the nettle fibers before and after hot water treatment was analyzed by TGA. A comparison of oil sorption capacity of nettle fibers treated with different solvents/chemicals is also presented. This work demonstrates that hot water-treated nettle fibers are an economical and eco-friendly biosorbent for oil spill removal applications.

摘要

在这项工作中，“绿色”油吸附剂是由荨麻纤维通过热水处理制备的。系统研究了热水处理温度、吸油剂接触时间和可重复使用性对吸油率的影响。在热水处理温度 100°C 和吸油剂接触时间 15 分钟时，最大吸油量对发动机油和对柴油分别达到 15.89 g/g 和 13.10 g/g。SEM用于表征表面形态，FTIR证实了热水处理后的化学变化。通过TGA分析热水处理前后荨麻纤维的热稳定性。还比较了用不同溶剂/化学品处理的荨麻纤维的吸油能力。