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The Effect of Zinc Oxide Nanoparticle Shape for Photodegradation of<br />

Rhodamine B Dye<br />

Siti Zulaikha Binti Mohd Khalid<br />

Supervisor: Dr Hanis Binti Mohd Yusoff<br />

Bachelor of Science (Chemical Sciences)<br />

School of Fundamental Science<br />

Zinc oxide (ZnO) with different shape which are spherical and nanorod were<br />

successfully prepared by using sol-gel method. In this method, zinc acetate<br />

dehydrated and polyvinyl pyrrolidone were used as a starting material. The obtained<br />

powder was characterized using X-ray diffraction (XRD), scanning electron microscope<br />

(SEM) and Fourier transform infra-red (FTIR). SEM micrographs showed that spherical<br />

and nanorod ZnO were obtained. These ZnO samples were then applied for the<br />

photodegradation of Rhodamine B (RhB) dye. Results from photodegradation showed<br />

the nanorod shape gave the highest degradation. The results of photocatalytic<br />

degradation of RhB dye in aqueous solution showed that the morphology of ZnO<br />

nanostructure influenced on the photocatalytic efficiency.<br />

459 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2018

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