期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 33, 页码 17312-17319出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03756e
关键词
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资金
- New Energy and Industrial Technology Development Organization (NEDO) in Japan
- Japan Science and Technology (JST) Agency
Visible-light sensitive photocatalysts are desirable for indoor environmental remediation applications. Photocatalysts used for indoor environmental applications must have efficient visible-light activity and sustainable function under dark conditions, as indoor light instruments are typically switched off during the night. Herein, we report the synthesis and optimization of a highly visible-light sensitive Cu(II)-TiO2 nanocomposite with sustained anti-viral activity under dark conditions. The synthesized Cu(II)-TiO2 exhibited superior volatile organic compound decomposition and anti-viral activity under visible-light irradiation. Its quantum efficiency for the decomposition of gaseous 2-propanol reached 68.7%. In addition, Cu(II)-TiO2 completely inactivated the bacteriophage within 30 min of visible-light irradiation. Notably, the Cu(II)-TiO2 photocatalyst also exhibited sustained anti-viral activity under dark conditions after visible-light irradiation treatment. Taken together, these findings indicate that the prepared Cu(II)-TiO2 is potentially an effective risk-reduction material for indoor applications.
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