Preparation of Sandwich Bipolar Membrane and its Photocatalytic Properties

Abstract:

The mCMC/TiO₂-Oxine/mCS bipolar membrane (BPM) was prepared by carboxymethyl cellulose (CMC) as an anodic layer and chitosan (CS) as a cathodic layer modified by Cr³⁺ and glutaraldehyde as linking reagents, respectively. The Nano-TiO₂ modified with the photosensitizer oxine was taken as a photocatalytic interlayer to enhance the water splitting in the interlayer of the BPM. The mCMC/TiO₂-Oxine/mCS BPM shows a sandwich composition, and exhibited an excellent hydrophilic performance, lower impedance and working voltage. When the working current density is as high as 120 mA • cm^-2, the working voltage is as low as 5.0 V with UV irradiation.

• Periodical: Advanced Materials Research (Volumes 233-235)
• Pages: 1650-1654
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.233-235.1650
• Online since: May 2011
• Authors: Qiao Ping Chen, Shuang Chen, Ri Yao Chen, Hong Fang Xie, Zhen Chen
• Keywords: Bipolar Membrane, Chitosan (CS), Oxine, Photocatalytic, Sodium Carboxymethyl Cellulose, TiO₂

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