Preparation of Sandwich Bipolar Membrane and Its Photocatalytic Properties

doi:10.3724/SP.J.1095.2010.00070

Chinese Journal of Applied Chemistry ›› 2010, Vol. 27 ›› Issue (11): 1301-1305.DOI: 10.3724/SP.J.1095.2010.00070

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Preparation of Sandwich Bipolar Membrane and Its Photocatalytic Properties

CHEN Shuang¹, CHEN Qiao-Ping², ZHENG Xi¹, CHEN Xiao¹, CHEN Zhen^1,2*

(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

Abstract

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

CLC Number:

O646

CHEN Shuang1, CHEN Qiao-Ping2, ZHENG Xi1, CHEN Xiao1, CHEN Zhen1,2*. Preparation of Sandwich Bipolar Membrane and Its Photocatalytic Properties[J]. Chinese Journal of Applied Chemistry, 2010, 27(11): 1301-1305.

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Preparation of Sandwich Bipolar Membrane and Its Photocatalytic Properties

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