| 八羧基铜酞菁修饰海藻酸钠阳膜层制备CuPc(COOH)8-SA/mCS双极膜及其表征 |
| Preparation and Characterization of CuPc (COOH)8-SA/mCS Bipolar Membrane Modified by Copper Octocarboxyphthalocyanine in Cation Layer |
|
| 摘要: 在海藻酸钠(SA)中添加八羧基铜酞菁(CuPc(COOH)8)，并分别用Fe3+离子和戊二醛作为交联剂对海藻酸钠-八羧基铜酞菁阳膜层和壳聚糖(CS)阴膜层进行改性，制备了八羧基铜酞菁-海藻酸钠/改性壳聚糖双极膜(CuPc(COOH)8-SA/mCS BPM)。在海藻酸钠中添加八羧基铜酞菁以促进中间层中水的解离。用FTIR、SEM等对制备的CuPc(COOH)8-SA/mCS双极膜进行了表征。作为比对，制备了Fe3+离子改性的Fe-SA/mCS双极膜和二茂铁(Fc)离子改性的Fc-SA/mCS双极膜。实验结果表明，CuPc(COOH)8-SA阳离子交换膜的离子交换容量、H+离子透过率均获得提高。与Fe3+离子改性或二茂铁离子改性的mSA/mCS双极膜相比，CuPc(COOH)8-SA/mCS双极膜的阻抗、电阻压降(IR降)和溶胀度降低，在H+离子浓度低于8 mol·L-1的酸溶液中具有稳定的工作性能。 |
| 关键词: 八羧基铜酞菁 海藻酸钠 壳聚糖 双极膜 |
| 基金项目: |
| Abstract: In this paper, the sodium alginate(SA) cation layer was modified by copper octocarboxyphthalocyanine(CuPc(COOH)8), then the CuPc(COOH)8-SA and chitosan(CS) were modified by Fe3+ and glutaraldehyde as linking reagents to prepare CuPc(COOH)8-SA/mCS bipolar membrane(BPM). The FTIR and SEM were used to characterize the CuPc(COOH)8-SA/mCS BPM. The CuPc(COOH)8 can promote water splitting at the interlayer of the CuPc(COOH)8-SA/mCS BPM. For comparison with the CuPc(COOH)8-SA/mCS BPM, the mSA/mCS BPMs modified by Fe3+ and ferrocene were prepared. The experimental results showed that the ion exchange capacity and hydrogen ion transmigration rate of the CuPc(COOH)8-SA cation exchange membrane were increased. In comparison with the mSA/mCS BPM modified by Fe3+ or ferrocene, the membrane impedance, IR drop and swelling degree of the CuPc(COOH)8-SA/mCS BPM were decreased. The BPM was stable in an acid solution(cH+＜8 mol·L-1). |
| Keywords: copper octocarboxyphthalocyanine sodium alginate chitosan bipolar membrane |
| |
| 摘要点击次数: 2389 |
| 全文下载次数: 1995 |
| 陈日耀,陈 震,郑 曦,陈 晓,张娟灵.八羧基铜酞菁修饰海藻酸钠阳膜层制备CuPc(COOH)8-SA/mCS双极膜及其表征[J].无机化学学报,2009,25(12):2143-2150. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
