Vol 35 高等学校化学学报 No 9 2014 9 CHEMICAL JOURNAL OF CHINESE UNIVERSITIES 2026 ~ 2030 doi 10 7503 /cjcu20140305 PHGH 李霞 1,2, 曹义鸣 1, 康国栋 1, 于海军 1 1,2, 刘中楠 1 116023 2 100049 PHGH ATR-FTIR SEM PHGH PHGH PHGH PHGH 3% 98 5% O631 TQ028 8 A 200 ~ 1000 1 ~ 3 4 5 6 7 Dopamine DA PDA 8 ~ 10 NH 2 NH SH Schiff Michael 9 11 12 PHGH 13 14 PHGH 1 1 1 PSF Udel-3500 Amoco -400 N N- Tris 2014-04-04 21206157 2012AA03A611 2014BAI11B13 E-mail ymcao@ dicp ac cn
No 9 李霞等 : 基于多巴胺自聚合与表面接枝 PHGH 制备抗菌纳滤膜 2027 1 MgSO 4 MgCl 2 Na 2 SO 4 NaCl E coil 1 2 Fig 1 Structure of PHGH 1 2 1 15 15% -400 6% N N- 79% 70 12 h Tris-HCl ph = 8 5 2 g /L PSF 24 h PSF /PDA Tris-HCl ph = 8 5 PHGH PHGH 24 h PHGH PSF /PDA-PHGH 1 2 2 Equinox 55 JSM-6360LV JC2000C Grafting degree Grafting degree = m 1 - m 0 /A 1 m 1 m 0 μg A cm 2 1 2 3 0 01 mol /L 0 1 g /L 0 6 MPa J / L m - 2 h - 1 R J = V /At R = 1 - c p /c f 100% V L A m 2 t h c f mol /L c p mol /L DDS-12DW UVmini-1240-1 2 4 E coil 16 E coil BPY 37 24 h 37 24 h 37 24 h AR AR = 1 - C /B 100% B C 2 2 1 2 PSF /PDA 1616 3340 cm - 1 N H O H 2 c PHGH PSF /PDA-PHGH 1636 cm - 1 C N 2932 2856 cm - 1 CH 2 PSF /PDA-PHGH Fig 2 ATR-FTIR spectra of membrane samples PHGH O H a PSF b PSF /PDA c PSF /PDA-3% PHGH 2 3 4
2028 高等学校化学学报 Vol 35 3 SEM PSF 17 PHGH PHGH PHGH SEM 3 A 2 ~ D 2 PHGH Fig 3 2 2 SEM images surface A 1 D 1 cross-section A 2 D 2 of membrane samples A PSF B PSF /PDA C PSF /PDA-1% PHGH D PSF /PDA-3% PHGH 4 PSF PSF 78 7 53 8 PSF PHGH PHGH PHGH Fig 4 Contact angle of membrane samples PSF a PSF b PSF /PDA c PSF /PDA-1% PHGH d PSF /PDA-2% PHGH e PSF /PDA-3% PHGH 2 3 PSF /PDA PHGH 5 PHGH PHGH PHGH PHGH PHGH 2 4 6 PHGH MgCl 2 PHGH MgCl 2 PHGH PHGH 7 PSF /PDA PSF /PDA-PHGH MgCl 2 > MgSO 4 > Na 2 SO 4 > NaCl PDA PHGH
No 9 李霞等 : 基于多巴胺自聚合与表面接枝 PHGH 制备抗菌纳滤膜 2029 Fig 5 Influence of PHGH content on grafting Fig 6 Infiuence of PHGH concent on the performance degree of composite membranes Fig 7 Rejections of different inorganic salts for composite membranes Fig 8 Infiuence of PHGH concent on rejections of different dyes for composite membranes 8 PHGH 3 PHGH PHGH 3% 100% 90 5% 2 5 1 50 5% PHGH PHGH 3% 98 5% PHGH PHGH Mg 2 + Ca 2 + 14 PHGH Table 1 Antibacterial activity of composite membranes against E coli Membrane sample AR % Membrane sample AR % PSF /PDA 50 5 ± 6 8 PSF /PDA-2% PHGH 92 8 ± 1 1 PSF /PDA-1% PHGH 85 5 ± 4 6 PSF /PDA-3% PHGH 98 5 ± 1 4 PHGH PSF PSF 90 5% PHGH PHGH 3% 98 5% 1 Mansourpanah Y Madaeni S S Rahimpour A J Membr Sci 2009 343 1 /2 219 228 2 Chen S H Chang D J Liou R M Hsu C S Lin S S J Appl Polym Sci 2002 83 1112 1118
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