摘要
分别用八羧基铜酞菁[CuPc(COOH)8]和四氨基铜酞菁(CuTAPc)改性海藻酸钠(SA)阳膜层和壳聚糖(CS)阴膜层,制备了CuPc(COOH)8-SA/CuTAPc-CS双极膜.实验结果表明,经八羧基铜酞菁和四氨基铜酞菁改性后,促进了双极膜中间层水的解离,增大了阳离子交换膜层和阴离子交换膜层的离子交换容量及H+和OH-的透过率.与Fe3+改性的Fe-SA/mCS双极膜相比,CuPc(COOH)8-SA/CuTAPc-CS双极膜的阻抗、电阻压降(即IR降)和溶胀度降低.当电流密度高达120 mA/cm2时,CuPc(COOH)8-SA/CuTAPc-CS双极膜的IR降仅为0.9 V.
The sodium alginate（SA） cation layer and the chitosan（CS） anion layer were modified by copper octocarboxyphthalocyanine[CuPc（COOH）8] and copper tetraaminophthalocyanine（CuTAPc） to prepare the CuPc（COOH）8-SA/CuTAPc-CS bipolar membranes（BPM）.The ion exchange capacity and hydrogen ion transmigration rate of the CuPc（COOH）8-SA cation exchange membrane,and the ion exchange capacity and hydroxide ion transmigration rate of the CuTAPc-CS anion exchange membrane were increased.The water splitting rate at the interlayer of the CuPc（COOH）8-SA/CuTAPc-CS BPM was promoted.In comparison with the Fe-SA/mCS BPM modified by Fe3＋,the membrane impedance,IR drop and swelling degree of the CuPc（COOH）8-SA/CuTAPc-CS BPM all obviously decreased.The IR drop of the CuPc（COOH）8-SA/CuTAPc-CS BPM was 0.9 V at a higher current density of 120 mA/cm2.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第3期530-536,共7页
Chemical Journal of Chinese Universities
基金
福建省自然科学基金(批准号:D0710009)资助
关键词
八羧基铜酞菁
四氨基铜酞菁
海藻酸钠
壳聚糖
双极膜
Copper octocarboxyphthalocyanine
Copper tetraaminophthalocyanine
Sodium alginate
Chitosan
Bipolar membrane
