MODIFICATION AND PERFORMANCES OF TiO 2 PHOTOCATALYST TOWARDS DEGRADATION OF PARAQUAT DICHLORIDE
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Sustainability Science and Management
Abstract
Titanium dioxide, TiO2 nanostructured has been synthesised by microemulsion technique
under controlled hydrolysis of titanium butoxide, Ti(O(CH2)3)CH3 in hexadecyltrimethyl ammonium
bromide, HTAB in the form of nanodroplets microemulsion. The physical and chemical properties
of synthesised TiO2 have been determined by using SEM, XRD, BET and photocatalytic activity.
In order to measure its catalytic performance, the synthesised TiO2is used as catalyst to decompose
paraquat dichloride when exposed to UV bench lamp 302 nm 230 V~50 Hz. The result indicates that
paraquat dichloride is degraded by 70% within 4 hours. The optimum catalytic properties enable
to demonstrate TiO
2 nanostructured has good behaviour to photocatalytically degrade paraquat
dichloride to relatively safe and tolerable compounds in the environment.
Description
Keywords
TiO 2, microemulsion, photodegradation, paraquat dichloride