Journal
MOLECULES
Volume 26, Issue 20, Pages -Publisher
MDPI
DOI: 10.3390/molecules26206221
Keywords
photocatalysis; nitrogen-doped TiO2; copper metal; isopropanol degradation; sterilization
Funding
- Key Special Focus Project of China Hunan Provincial Science and Technology Department [2020SK3025]
- Changsha Municipal Natural Science Foundation [kq2014119]
- Opening Project of Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, China [2020kfkt02]
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Developing efficient and cost-effective photocatalysts sensitive to indoor light holds promise for the practical use of photocatalysis technology. In this study, N-doped TiO2 photocatalyst with Cu crystalline cocatalyst was synthesized and showed high activity in decomposing isopropanol and inactivating E. coli under household white LED lamp irradiation.
Developing efficient and cheap photocatalysts that are sensitive to indoor light is promising for the practical application of photocatalysis technology. Here, N-doped TiO2 photocatalyst with loaded Cu crystalline cocatalyst is synthesized by a simple one-pot method. The structure is confirmed by transmission electron microscopy and X-ray photoelectron spectroscopy analysis, which exhibit that Cu metal nanocrystalline is uniformly deposited on the surface of N-doped TiO2 material. UV-Vis absorption spectra illustrate that the modified samples possess favorable visible light absorption properties and suppressed-electron hole separation. The as-fabricated Cu-loaded N-TiO2 materials show high activity in photocatalytic decomposing isopropanol and inactivating E. coli under the irradiation of a household white LED lamp. The developed synthetic strategy and photocatalytic materials reported here are promising for indoor environment purification.
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