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Citation: CHEN Shuang, CHEN Qiao-Ping, ZHENG Xi, CHEN Xiao, CHEN Zhen. Preparation of Sandwich Bipolar Membrane and Its Photocatalytic Properties[J]. Chinese Journal of Applied Chemistry, ;2010, 27(11): 1301-1305. doi: 10.3724/SP.J.1095.2010.00070 shu

Preparation of Sandwich Bipolar Membrane and Its Photocatalytic Properties

CHEN Shuang ^a, ,
CHEN Qiao-Ping ^b ,
ZHENG Xi ^a ,
CHEN Xiao ^a ,
CHEN Zhen ^a,b

a. College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007;
b. Chemistry Department of Ningde College, Ningde 352100

Received Date: 27 January 2010
Revised Date: 19 April 2010

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.
- bipolar membrane,
- sodium carboxymethyl cellulose,
- chitosan,
- oxine,
- nano-TiO₂,
- photocatalysis
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