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Development of Polyaniline Conducting Electrode for Metal Ion<br />

Electrochemical Sensor<br />

Siti Raihana Binti Ramli<br />

Supervisor: Dr. Hafiza binti Mohamed Zuki<br />

Bachelor of Science (Analytical and Environmental Chemistry)<br />

School of Marine and Environmental Sciences<br />

Universiti Malaysia Terengganu<br />

A conducting polymer of polyaniline (PANI) film was prepared by chemical oxidative<br />

polymerization method. Polyaniline was synthesized with ammonium persulphate as<br />

oxidant and the green dark colour of polyaniline powder yield was 84.47%. The<br />

polymer was characterized using Fourier Transform Infrared (FTIR). The FTIR<br />

spectrum showed the presence of N-H stretching at 3572.30 cm -1 and C=O stretching<br />

at 1724.48 cm -1 . Different methods of polyaniline immobilizations were used which<br />

are deep coating PVC film on glass matrices and electrodeposition coating on screenprinted<br />

electrodes (SPEs). The surface morphology of the immobilized films were<br />

analysed using Scanning Electron Microscope (SEM) and their performances were<br />

tested using cyclic voltammetry potentiostat. All polyaniline conducting electrodes<br />

developed shows responses towards metal ions. This proven the polyaniline capable<br />

to be further developed as commercialized working electrode.<br />

1973 | UMT UNDERGRADUATE RESEARCH DAY 2018

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