| Title: | Photocatalytic oxidation of toluene and isopropanol by LaFeO(3)/black-TiO(2) |
| Author(s): | Lee YE; Chung WC; Chang MB; |
| Address: | "Graduate Institute of Environmental Engineering, National Central University, No.300, Zhongda Road, Zhongli District, Taoyuan City, 32001, Taiwan. Graduate Institute of Environmental Engineering, National Central University, No.300, Zhongda Road, Zhongli District, Taoyuan City, 32001, Taiwan. mbchang@ncuen.ncu.edu.tw" |
| Journal Title: | Environ Sci Pollut Res Int |
| DOI: | 10.1007/s11356-019-05436-z |
| ISSN/ISBN: | 1614-7499 (Electronic) 0944-1344 (Linking) |
| Abstract: | "Large amount of volatile organic compounds (VOCs) are emitted from industrial, mobile, and domestic sources, causing adverse effects on human health and environment. Among VOCs, toluene and isopropanol (IPA) are commonly used as solvent, soldering flux, and spray paint and their emissions need to be reduced. Several VOCs abatement technologies are available to reduce VOC emission and photocatalytic oxidation of VOC is regarded as a viable technique due to its advantage of utilizing solar energy. TiO(2) has been investigated for its oxidation capability toward VOCs because of its good photocatalytic activity. However the utilization is limited to UV due to its wider bandgap; furthermore, its fast recombination rate of electron-hole pair reduces the oxidation rate of VOCs. Black-TiO(2) and perovskite-type photocatalyst such as LaFeO(3) can be applied to enhance photocatalytic activity due to narrower bandgap and longer electron-hole pair lifetime. In this study, black-TiO(2) and LaFeO(3) are prepared and investigated for their photocatalytic oxidation rates toward toluene and IPA. Results show that toluene removals achieved with black-TiO(2) and LaFeO(3) are 89% and 98% while IPA removals are 90% and 94%, respectively. Both photocatalysts show better photocatalytic activity than TiO(2) and good absorption capability toward visible light. Graphical abstract" |
| Keywords: | 2-Propanol/*chemistry/isolation & purification Air Pollutants/*chemistry/isolation & purification Calcium Compounds/*chemistry Catalysis Environmental Restoration and Remediation Light Oxidation-Reduction Oxides/*chemistry Photochemical Processes Titanium; |
| Notes: | "MedlineLee, Yun-En Chung, Wei-Chieh Chang, Moo-Been eng MOST 105-2221-E-008-007-MY3/Science and Technology of the Republic of China/ Germany 2019/05/23 Environ Sci Pollut Res Int. 2019 Jul; 26(20):20908-20919. doi: 10.1007/s11356-019-05436-z. Epub 2019 May 21" |
