OPA-UiO-66/棉浆纤维复合材料的制备及其油水分离性能

Preparation of OPA-UiO-66/Cotton Pulp Fiber Composite and Its Oil-Water Separation Performance

中文关键词:  复合材料  棉浆纤维（CF）  金属有机骨架材料（MOFs）  磷酸正十八酯（OPA）  油水分离

Key Words:composite  cotton pulp fiber （CF）  MOFs  OPA-UiO-66  oil-water separation

中文摘要:

      以棉浆纤维（CF）为基底材料，Zr₆O₄（OH）₄（BDC）₆（UiO-66）为金属有机骨架材料（MOFs），采用水热合成法制备了UiO-66/CF；利用磷酸正十八酯（OPA）改性UiO-66/CF，在其表面引入疏水烷基链，合成了OPA-UiO-66/CF，并对其表面形貌、结晶结构、疏水亲油性能等进行了分析表征。结果表明，UiO-66可均匀负载在CF表面，且生长在CF表面的UiO-66晶体粒径是纯相UiO-66晶体粒径的1/10；OPA-UiO-66/CF具有疏水亲油性能，对油包水乳液的分离效率可达99.6%。

Abstract:

      UiO-66/CF was prepared by hydrothermal synthesis method with cotton pulp fiber （CF） as the base material and Zr₆O₄（OH）₄-（BDC）₆ （UiO-66） as the metal organic framework material （MOF）. UiO-66/CF was modified by octadecylphosphonic acid （OPA） to introduce hydrophobic alkyl chains on its surface so as to synthesize OPA-UiO-66/CF. The surface morphology， crystal structure， and hydrophobic & lipophilic properties of OPA-UiO-66/CF were analyzed and characterized. The results show that UiO-66 can uniformly load on the surface of CF， and the particle size of which is 1/10 of that of pure UiO-66. OPA-UiO-66/CF is of hydrophobic & lipophilic properties with separation efficiency for water-in-oil emulsions up to 99.6%.