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Titanium Dioxide Nanotubes Coated On Glass as Photocatalyst for Methyl<br />

Orange Wastewater Treatment<br />

Nadhra Hidayah Binti Mohd Halim<br />

Supervisor: Dr.Mohd Hasmizam Bin Razali<br />

Bachelor of Science (Chemical Sciences)<br />

School of Fundamental Science<br />

Methyl orange is known as one of the anionic dyes which is the major pollutants that<br />

enter both aquatic and atmospheric systems via textile industries. In this research,<br />

methyl orange was degraded using titanium dioxide powder and TiO2 thin film coated<br />

on glass. Titanium dioxide powder and TiO2 thin film were prepared using sol-gel<br />

method and paste-gel coating method, respectively with TTIP was used as TiO2<br />

starting material. The prepared photocatalyst were characterized by XRD and titanium<br />

dioxide powder had higher crystalline anatase phase as compared to TiO2 thin film.<br />

SEM analysis revealed that titanium dioxide powder had spherical shape while TiO2<br />

thin film had triangular shape. For the photocatalytic activity, titanium dioxide powder<br />

had higher degradation rate (71%) than TiO2 thin film (52%) due to the chemical<br />

stability and amount of catalyst used for the removal of methyl orange.<br />

422 | 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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