Preparation and Characterization of Interfacially Polymerized Polyamide Membrane for Dye Removal

N. F. Himma, B. Ismuyanto, A. Hidayati, Juliananda Juliananda, H. Rohmawati, I. Budiarta
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Abstract

Interfacial polymerization of polyamide was conducted using hydrophobic and hydrophilic membrane support. The effects of monomer concentration were investigated, and the resulting thin-film composite membranes were tested for their performance in dye removal using different flow configurations. The results showed that a dense polyamide layer was successfully formed on the hydrophilic support, while a polyamide layer with a very loose structure was formed on the hydrophobic support. The polyamide layer became smoother and more hydrophilic as the concentration of trimesoyl chloride was increased, leading to increased permeate flux and reduced dye rejection. The highest sunset yellow rejection of 45.7% with a permeate flux of 4.9 L/m2.h was obtained when the polyamide layer was formed from trimesoyl chloride concentration of 0.05 w/v% (a high amine to acid chloride monomer ratio of 20) and the filtration was in cross-flow configuration.
界面聚合聚酰胺脱色膜的制备与表征
采用疏水性和亲水性膜载体对聚酰胺进行了界面聚合。研究了单体浓度的影响,并测试了所得薄膜复合膜在不同流动配置下的除染料性能。结果表明,在亲水性载体上成功地形成了致密的聚酰胺层,而在疏水性载体上形成了结构非常松散的聚酰胺层。随着三聚氯浓度的增加,聚酰胺层变得更光滑、更亲水,导致渗透通量增加和染料截留率降低。当聚酰胺层由浓度为0.05w/v%的三聚氯(胺与酰氯单体的高比例为20)形成并且过滤为错流配置时,获得45.7%的最高日落黄截留率和4.9L/m2.h的渗透通量。
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