A new method was employed to synthesize a novel high voidage ZIF-8 membrane over paper-like stainless steel fibers (PSSF). Firstly, paper-like stainless steel fibers (PSSF) were prepared by wet lay-up papermaking and sintering process, then the ZIF-8 membrane was coated on the PSSF support by secondary growth process. The effects of the seed layer growth time, the Hmim (2-methylimidazole) /Zn (Zinc nitrate hexahydrate) molar ratios, the solvothermal synthesis temperature and time on properties of ZIF-8 membrane/PSSF composites were investigated by modern characterization methods. The experimental results indicated that the void volume of ZIF-8 membrane/PSSF composites reached 89%. The optimal specific surface area of composites was 398 m²/g and the total pore volume was 0.174 cm³/g. Specifically, the size of seeds were approximately 250 nm when Hmim/Zn molar ratios and seed layer deposition time were 80 and 12 h, respectively. Under the condition of optimal seed layer, ZIF-8 membrane/PSSF composites showed outstanding continuity, compactness, free-defect and crystal shape when solvothermal synthesis time and solvothermal synthesis temperature were 24 h and 100 ℃, respectively.

一种新的方法被用来在纸状不锈钢纤维（PSSF）上合成新型的高空隙率ZIF-8膜。首先，通过湿式抄纸和烧结工艺制备纸状不锈钢纤维（PSSF），然后通过二次生长工艺将ZIF-8膜涂覆在PSSF载体上。采用现代表征方法研究了种子层生长时间，Hmim（2-甲基咪唑）/ Zn（硝酸锌六水合物）摩尔比，溶剂热合成温度和时间对ZIF-8膜/ PSSF复合材料性能的影响。实验结果表明，ZIF-8膜/ PSSF复合材料的空隙体积达到89％。复合材料的最佳比表面积为398  m ² / g，总孔容为0.174  cm³ /克。具体而言， 当Hmim / Zn摩尔比和种子层沉积时间分别为80和12  h时，种子的大小约为250 nm 。在最佳种子层条件下，溶剂热合成时间为24  h，溶剂热合成温度为100℃时，ZIF-8膜/ PSSF复合材料表现出优异的连续性，致密性，自由缺陷和晶体形状。