Open AccessSELF-CLEANING GLASS BASED ON ACID-TREATED TiO<sub>2</sub> FILMS WITH PALMITIC ACID AS MODEL POLLUTANT
Author(s) -
Nurul Hidayat Aprilita,
Indriana Kartini,
Sofy Herawati Ratnaningtyas
Publication year - 2010
Publication title -
indonesian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.273
H-Index - 14
eISSN - 2460-1578
pISSN - 1411-9420
DOI - 10.22146/ijc.21623
Subject(s) - anatase , photodegradation , palmitic acid , photocatalysis , chemistry , pollutant , chemical engineering , thin film , layer (electronics) , porosity , nuclear chemistry , materials science , nanotechnology , catalysis , organic chemistry , fatty acid , engineering
Preparation and characterization of self-cleaning glass based on acid-treated TiO2 films as well as evaluation on their self-cleaning properties have been carried out. Palmitic acid photodegradation was used as model pollutant. Acid-treated TiO2 powders were deposited on glass surface by using spraying technique. The XRD results showed that acid-treated TiO2 film exhibited decreased anatase crystalline size. The corresponding SEM images showed porous surface morphology. Layer densification was observed as the film thickness increased. TiO2 photocatalytic activity increased as the length of UV radiation increased. Best results were obtained at experimental condition of 35 hours UV radiation time. It is also observed that the thickness of TiO2 layers influenced the efficiency of palmitic acid photodegradation. The film with 1.661 µm thick TiO2 layers and 6.933 mg weight (0.7164 mg/cm2) could degrade 97.54 % mg palmitic acid/cm2 thin film. Keywords: TiO2 films, acid treatment, self-cleaning glass