Realizing Mussel-Inspired Polydopamine Selective Layer with Strong Solvent Resistance in Nanofiltration toward Sustainable Reclamation
作者： Yanchao Xu , Fangjie You , Hongguang Sun , Lu Shao
DOI: 10.1021/ACSSUSCHEMENG.7B00871
关键词:
摘要: Herein, a mussel-inspired polydopamine (PDA) coating layer has been first explored as separating for organic solvent nanofiltration (OSN). A PDA based was constructed on polyimide (PI) support via dopamine coating. The subsequent membrane then treated with 1,6-hexanediamine cross-linking both the and PI support. Fourier transform infrared (ATR-FTIR) X-ray photoelectron (XPS) results indicated deposition of cross-linked structures PI. Scanning electron microscopy (SEM), atomic force (AFM), water contact angle, surface energy measurements were further employed to characterize morphologies properties composite membranes. After an optimized time 4 h, resultant showed EtOH permeance 0.91 L m–2 h–1 bar–1 RB rejection 99%. More importantly, also exhibited good performance dyes separation from wide range solvents i...
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