Isolation and Characterization of Chromobacterium violaceum and Pedobacter glucosidilyticus for Dye Sensitized Solar Cell (DSSC) Application

Mohamad Amirul, Mohd Ibrahim (2018) Isolation and Characterization of Chromobacterium violaceum and Pedobacter glucosidilyticus for Dye Sensitized Solar Cell (DSSC) Application. [Final Year Project Report] (Unpublished)

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Abstract

This thesis reported isolation and characterization of bacterial pigment from Chromabacterium violaceum and Pedobacter glucosidilyticus used in dye sensitized solar cell (DSSC) applications. This study purpose was to determine the voltage produce by DDSC using bacterial pigment under sunlight at 12 P. M and 3 P. M. The C. violaceum and P. glucosidilyticus were isolated from the wastewater sample in UNIMAS. Violacein pigment was extracted from C. violaceum and flexirubin was obtained from P. glucosidilyticus. Both pigmented bacteria were gram-negative, pink and rod-shaped bacteria with 2 μm length. Molecular test has been done to identify C. violaceum and P. glucosidilyticus. The absorption wavelength of violacein and flexirubin were 557.732 nm and 473.929 nm respectively. The design of DSSC in sandwich structure on conductor glass using titanium dioxide (TiO2) electrode, redox electrolyte, bacterial pigment and carbon electrode. The highest voltage produced by violacein was 570 mV and flexirubin was 20.1 mV that give maximum current density 1.520 iA/cm2. Hence, the pigment produced by C. violaceum and P. glucosidilyticus can be used as photosensitizer in DSSC.

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