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首页> 外文期刊>Journal of Applied Polymer Science >Using a simple method to prepare UiO-66-NH2/chitosan composite membranes for oil-water separation
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Using a simple method to prepare UiO-66-NH2/chitosan composite membranes for oil-water separation

机译：使用简单的方法制备UIO-66-NH2 /壳聚糖复合膜进行油水分离

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摘要

Chitosan (CS) was used as a cross-linking agent to modify UiO-66-NH2, and the modified UiO-66-NH2 was fixed on the mixed cellulose membrane (MCE) through vacuum filtration technology to prepare a new type of membrane. The membrane exhibited excellent hydrophilicity in the air and excellent super-oleophobic performance underwater, and effectively separated various oil-water emulsions. When separating petroleum ether-water emulsion, the filtration flux of the modified membrane was 2000 L m(-2) h(-1) higher than that of MCE, and the separation efficiency can reach more than 95%. After 10 cycles, the flux of the modified membrane was about four times of that MCE, which was 500 L m(-2) h(-1). Most importantly, the membrane still maintained underwater superoleophobicity in the environment of strong acid, strong base, and salt solution.
机译：以壳聚糖（CS）为交联剂对UiO-66-NH2进行改性，并通过真空过滤技术将改性后的UiO-66-NH2固定在混合纤维素膜（MCE）上，制备了一种新型膜。该膜在空气中表现出良好的亲水性，在水下表现出优异的超疏油性能，能有效分离各种油水乳液。在分离石油醚-水乳液时，改性膜的过滤通量比MCE高2000L m（-2）h（-1），分离效率可达95%以上。经过10次循环后，改性膜的通量约为MCE的4倍，即500 L m（-2）h（-1）。最重要的是，在强酸、强碱和盐溶液环境中，膜仍保持水下超亲油性。

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