Lignocellulose nanofibrils (LCNFs) were prepared from wheat straw using p-TsOH combined with enzymatic-assisted ultrasonic treatment,and then LCNFs filter membrane (LCNF-FM) was prepared by vacuum filtration.The microstructure,pure water flux,wettability and filtration performance against micro-nano particles of the LCNF-FM were studied.The results showed that LCNF-FM was composed of cross-linked nanofiber networks with an average pore diameter of 30.2nm.The filter membrane had good retention effect on both bacteria and TiO2 nanoparticles.LCNF-FM was preliminarily used to filtrate red wine,and the retention rate of effective ingredients in red wine was above 84% without affecting the wine quality significantly.This paper provided a green and environmental method to prepare LCNFs and corresponding filter membrane,which had a great potential for applications in the utilization of agricultural waste resources,as well as in water treatment,food and beverage purification and so on.
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基金资助
陕西省重点研发计划(2021SF-443)
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