TY - JOUR
T1 - Indoor gas phase photoactivity of yttrium modified titanate films for fast acetaldehyde oxidation
AU - Rodríguez-González, Vicente
AU - Sasaki, Mao
AU - Ishii, Junki
AU - Khan, Sovann
AU - Terashima, Chiaki
AU - Suzuki, Norihiro
AU - Fujishima, Akira
N1 - Funding Information:
M. S. and J. I., contributed for development of methodology, materials analysis, S.K contributed for conceptualization, writing-reviewing and editing and materials characterization. N.S., C.T., and A.F. contributed in support for materials characterizations and data interpretation. V.R.-G. contributed for funding acquisition conceptualization, supervision of experiments, and writing-original-draft preparation and writing-reviewing and editing.
Funding Information:
V.R.-G. received support from CONACyT-Mexico for the Visiting Scientists and Scientists on Sabbatical Leave Fellowship Program 2018–2019. We thank B. Rivera-Escoto, A. I. Peña-Maldonado and Hector Silva-Pereira of LINAN-IPICYT for the characterization of the materials studied in this work (XRD-SEM-TEM). S. K. appreciates the postdoctoral position from Japan Society for the Promotion of Science (JSPS)-P18337.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/7
Y1 - 2021/7
N2 - Photoactive materials hold structural and catalytic features that make them particularly suitable for environmental applications and in the present work, protonated H3Ti3O7–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.
AB - Photoactive materials hold structural and catalytic features that make them particularly suitable for environmental applications and in the present work, protonated H3Ti3O7–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.
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U2 - 10.1016/j.chemosphere.2021.129992
DO - 10.1016/j.chemosphere.2021.129992
M3 - Article
C2 - 33662721
AN - SCOPUS:85101694380
SN - 0045-6535
VL - 275
JO - Chemosphere
JF - Chemosphere
M1 - 129992
ER -
