TiO2 Transparent Thin Film for Eliminating Toluene | Zendy

Suhaina Mohd Ibrahim | Zendy; Nobuaki Negishi | Zendy; Abdul Kadir Masrom | Zendy; Babak Mazinani | Zendy; Anita Ramli | Zendy; Aishah Isnin | Zendy; Mohamad Zahid Abdul Malek | Zendy

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TiO₂ Transparent Thin Film for Eliminating Toluene

Author(s) -

Suhaina Mohd Ibrahim,

Nobuaki Negishi,

Abdul Kadir Masrom,

Babak Mazinani,

Anita Ramli,

Aishah Isnin,

Mohamad Zahid Abdul Malek

Publication year - 2012

Publication title -

isrn nanotechnology

Language(s) - English

Resource type - Journals

eISSN - 2090-6072

pISSN - 2090-6064

DOI - 10.5402/2012/262703

Subject(s) - anatase , photocatalysis , toluene , titanium dioxide , materials science , chemical engineering , thin film , contact angle , calcination , dip coating , rutile , coating , amorphous solid , catalysis , nanotechnology , organic chemistry , chemistry , composite material , engineering

TiO2 nanoparticles undergo a single-phase transition: from amorphous to anatase when calcined at 450°C. It can be noticed from the XRD and AFM results that the particle size of TiO2 is below 30 nm. Results from viscometer and UV-Vis analysis showed that the film thickness is closely related to the viscosity of dip-coating solutions. It was found that the contact angle for water decreased after being illuminated with UV light at certain periods of time. This indicates that these films exhibit hydrophilic properties that can be used on self-cleaning surfaces and antifogging mirrors. Heterogeneous photocatalytic oxidation allows the oxidation of airborne volatile organic compounds (VOCs) into carbon dioxide and water in the presence of a semiconductor catalyst and UV light source. Titanium dioxide, due to its chemical stability, nontoxicity, and low cost, represents one of the most efficient photocatalysts. Photocatalytic activity of the TiO2 thin films was evaluated by using toluene and results showed that this film is successful in decomposing toluene.

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