中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (11): 1301-1305.DOI: 10.3724/SP.J.1095.2010.00070

• 研究论文 • 上一篇    下一篇

三明治式双极膜的制备及其光催化性能

陈双1,陈巧平2,郑曦1,陈晓1,陈震1,2*   

  1. (1.福建师范大学化学与材料学院 福州 350007;2.宁德师范学院化学系 宁德 352100)
  • 收稿日期:2010-01-27 修回日期:2010-03-28 出版日期:2010-11-10 发布日期:2010-11-10
  • 通讯作者: 陈震，男，研究员，博士生导师; E-mail:zc1224@publ.fz.fj.cn; 研究方向：应用电化学
  • 基金资助:
    福建省科技厅福建省自然科学基金(D0710009)福建省教育厅(20075032)资助项目

Preparation of Sandwich Bipolar Membrane and Its Photocatalytic Properties

CHEN Shuang1, CHEN Qiao-Ping2, ZHENG Xi1, CHEN Xiao1, CHEN Zhen1,2*   

  1. (1.College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007;
    2.Chemistry Department of Ningde College,Ningde 352100)
  • Received:2010-01-27 Revised:2010-03-28 Published:2010-11-10 Online:2010-11-10

PDF

1763

被引次数

1

摘要：

以Cr3+交联羧甲基纤维素钠(CMC)作为阳膜层，戊二醛改性壳聚糖(CS)作为阴膜层，纳米TiO2光催化剂作为双极膜的中间层，在TiO2上涂布光敏剂八羟基喹啉（Oxine）以增强其光催化解离水的性能，制备了三明治式的双极膜（mCMC/TiO2-Oxine/mCS BPM)。 该双极膜在紫外光照射下，具有高的水解离效率，优良的亲水性能，双极膜阻抗小，工作电压低，当工作电流密度达0.12 A/cm2时，电槽工作电压小于5.0 V。

关键词: 双极膜, 羧甲基纤维素钠, 壳聚糖, 八羟基喹啉, 纳米二氧化钛, 光催化

Abstract:

The mCMC/TiO2-Oxine/mCS bipolar membrane(BPM) was prepared by using carboxymethyl cellulose(CMC) as the anodic layer, chitosan(CS) as the cathodic layer, and Cr3+ and glutaraldehyde as the linking reagents. Nano-TiO2 was taken as an interlayer. The BPM showed a sandwich composition. TiO2 was modified with the photosensitizer, oxine as a photocatalyst to enhance the photocatalytic properties for splitting the water in the interlayer of the BPM. The bipolar membrane exhibited an excellent hydrophilic performance, lower impedance and working voltage. When the working current density was as high as 0.12 A/cm2, the working voltage was as low as 5.0 V with UV irradiation.

Key words: Bipolar membrane, sodium carboxymethyl cellulose, chitosan, Oxine, titanium dioxide, photocatalysis

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