| Title: | Indoor gas phase photoactivity of yttrium modified titanate films for fast acetaldehyde oxidation |
| Author(s): | Rodriguez-Gonzalez V; Sasaki M; Ishii J; Khan S; Terashima C; Suzuki N; Fujishima A; |
| Address: | "Instituto Potosino de Investigacion Cientifica y Tecnologica (IPICyT), Division de Materiales Avanzados, Camino a La Presa San Jose 2055, Lomas 4a. Seccion 78216, San Luis Potosi, Mexico; Photocatalysis International Research Center, Research Institute for Science & Technology, And Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan. Electronic address: vicenrg@hotmail.com. Photocatalysis International Research Center, Research Institute for Science & Technology, And Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan. Electronic address: 7219534@ed.tus.ac.jp. Photocatalysis International Research Center, Research Institute for Science & Technology, And Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan. Electronic address: 7218504@ed.tus.ac.jp. Photocatalysis International Research Center, Research Institute for Science & Technology, And Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan. Electronic address: sovannkhan@gmail.com. Photocatalysis International Research Center, Research Institute for Science & Technology, And Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan; Research Center for Space Colony, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, 278-8510, Japan; Research Initiative for Supra-Materials, Shinshu University, Wakasato, Nagano, 380-8553, Japan. Electronic address: terashima@rs.tus.ac.jp. Photocatalysis International Research Center, Research Institute for Science & Technology, And Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan; Research Center for Space Colony, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, 278-8510, Japan. Electronic address: suzuki.norihiro@rs.tus.ac.jp. Photocatalysis International Research Center, Research Institute for Science & Technology, And Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan. Electronic address: Fujishima_akira@rs.tus.ac.jp" |
| DOI: | 10.1016/j.chemosphere.2021.129992 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Photoactive materials hold structural and catalytic features that make them particularly suitable for environmental applications and in the present work, protonated H(3)Ti(3)O(7)-Y nanofiber-like materials were prepared via the microwave assisted hydrothermal technique. The as-prepared nanofibers exhibited high surface area with titanate structure. The nanofibers, before and after yttrium incorporation, were well-distributed and the fibrous morphology could be observed clearly; as the yttrium loading increased, ribbons and the anatase phase were formed. Practical films of these nanofibers confirmed their likely UV-photoactive properties with 200 ppm of acetaldehyde degradation within 25 min in the presence of 50% of humidity. Activity retention was achieved, keeping stability for 2 consecutive cycles at room temperature. Nowadays, the increase in home office work sets human health at risk, for the exposure to toxic volatile organic compounds and microorganisms such as viruses and bacteria is more frequent indoors. In this context, the synthesized photoactive yttrium-titanate films stand as upcoming practical UV-driven materials for cleaning pollution that concentrated urban activity and indoor environments" |
| Keywords: | "Acetaldehyde/analysis *Air Pollution, Indoor/analysis Catalysis Humans Oxidation-Reduction *Volatile Organic Compounds/analysis Yttrium Acetaldehyde degradation Gas-phase photooxidation Indoor pollution Microwave assisted hydrothermal method Nanofiber-lik;" |
| Notes: | "MedlineRodriguez-Gonzalez, Vicente Sasaki, Mao Ishii, Junki Khan, Sovann Terashima, Chiaki Suzuki, Norihiro Fujishima, Akira eng England 2021/03/05 Chemosphere. 2021 Jul; 275:129992. doi: 10.1016/j.chemosphere.2021.129992. Epub 2021 Feb 20" |
