| Title: | Removing volatile organic compounds in cooking fume by nano-sized TiO(2) photocatalytic reaction combined with ozone oxidation technique |
| Author(s): | Li YH; Cheng SW; Yuan CS; Lai TF; Hung CH; |
| Address: | "School of Resources and Environmental Science, Hubei University, Wuhan, China; Hubei Key Laboratory of Regional Development and Environmental Response, Hubei University, Wuhan, China. Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC. Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC. Electronic address: ycsngi@mail.nsysu.edu.tw. Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan, ROC" |
| DOI: | 10.1016/j.chemosphere.2018.06.035 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Chinese cooking fume is one of the sources of volatile organic compounds (VOCs) in the air. An innovative control technology combining photocatalytic degradation and ozone oxidation (UV/TiO(2)+O(3)) was developed to decompose VOCs in the cooking fume. Fiberglass filter (FGF) coated with TiO(2) was prepared by an impregnation procedure. A continuous-flow reaction system was self-designed by combining photocatalysis with advanced ozone oxidation technique. By passing the simulated cooking fume through the FGF, the VOC decomposition efficiency in the cooking fume could be increased by about 10%. The decomposition efficiency of VOCs in the cooking fume increased and then decreased with the inlet VOC concentration. A maximum VOC decomposition efficiency of 64% was obtained at 100?ª+ppm. Similar trend was observed for reaction temperature with the VOC decomposition efficiencies ranging from 64 to 68%. Moreover, inlet ozone concentration had a positive effect on the decomposition of VOCs in the cooking fume for inlet ozone1000?ª+ppm. 34% of VOC decomposition efficiency was achieved solely by ozone oxidation with or without near-UV irradiation. A maximum of 75% and 94% VOC decomposition efficiency could be achieved by O(3)+UV/TiO(2) and UV/TiO(2)+O(3) techniques, respectively. The maximum decomposition efficiencies of VOCs decreased to 79% for using UV/TiO(2)+O(3) technique with adding water in the oil fume. Comparing the chromatographical species of VOCs in the oil fume before and after the decomposition of VOCs by using UV/TiO(2)+O(3)technique, we found that both TVOC and VOC species in the oil fume were effectively decomposed" |
| Keywords: | Air Pollutants/analysis Catalysis *Cooking Filtration/*instrumentation Oxidation-Reduction Ozone/*chemistry Photochemical Processes Titanium/*chemistry Ultraviolet Rays Volatile Organic Compounds/analysis/*isolation & purification Cooking fume Nano-sized; |
| Notes: | "MedlineLi, Yu-Hua Cheng, Su-Wen Yuan, Chung-Shin Lai, Tzu-Fan Hung, Chung-Hsuang eng England 2018/06/16 Chemosphere. 2018 Oct; 208:808-817. doi: 10.1016/j.chemosphere.2018.06.035. Epub 2018 Jun 5" |
