Abstract Fullerenol C60(OH)22–24 was incorporated into the polyamide (PA) selective layer to develop novel thin film nanocomposite (TFN) hollow fiber membranes for low molecular weight cut-off ultrafiltration. TFN membranes were fabricated via interfacial polymerization technique by alternately pumping fullerenol dispersion in triethylenetetramine (TETA) aqueous solution and isophthaloyl chloride solution in hexane through polysulfone hollow fiber membranes. Developed TFN PA/fullerenol membranes were investigated by FTIR, Raman spectroscopy, SEM, TEM, AFM, contact angle measurements and evaluated by determining the permeability, rejection and antifouling performance. Introduction of fullerenol to the PA skin layer was revealed to yield in the decrease of pure water flux and slight increase of lysozyme rejection which is attributed to the increase of the thickness of PA layer. Water contact angle of the skin layer was found to decrease sharply from 34° to 21° when the concentration of fullerenol increased up to 0.5 wt% in the TETA aqueous solution. Antifouling properties of the PA/fullerenol membranes were found to be superior to initial membrane. Fouling recovery ratio increased from 54% for the pristine membrane to 93% for the membrane with 0.5 wt% of fullerenol in the TETA aqueous solution. Irreversible fouling ratio was found to decrease from 38% to 6%, respectively. A correlation between surface properties and fouling behavior of TFN membranes upon increase of fullerenol concentration was established.

中文翻译：

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具有增强防污性能的聚酰胺-富勒烯醇薄膜纳米复合中空纤维膜的制备和表征

摘要富勒醇 C60(OH)22-24 被加入到聚酰胺 (PA) 选择性层中，以开发用于低分子量截留超滤的新型薄膜纳米复合材料 (TFN) 中空纤维膜。TFN 膜是通过界面聚合技术制造的，通过聚砜中空纤维膜交替泵送富勒烯醇分散体在三亚乙基四胺 (TETA) 水溶液和间苯二甲酰氯己烷溶液中。开发的 TFN PA/富勒烯醇膜通过 FTIR、拉曼光谱、SEM、TEM、AFM、接触角测量进行研究，并通过确定渗透性、截留率和防污性能进行评估。向 PA 表层引入富勒烯醇会导致纯水通量的降低和溶菌酶排斥的轻微增加，这归因于 PA 层厚度的增加。当 TETA 水溶液中富勒烯醇的浓度增加至 0.5 wt% 时，皮肤层的水接触角从 34° 急剧下降到 21°。发现 PA/富勒烯醇膜的防污性能优于初始膜。污染回收率从原始膜的 54% 增加到 TETA 水溶液中含有 0.5 wt% 富勒烯醇的膜的 93%。发现不可逆结垢率分别从 38% 下降到 6%。在富勒烯醇浓度增加时，TFN 膜的表面特性和污染行为之间建立了相关性。