Modified blue TiO2 nanostructures for efficient photo-oxidative removal of harmful NOx gases
| Autor: | Soo Wohn Lee, Gobinda Gyawali, Hoang Phuc Nguyen, Hao Huy Nguyen, Adriana Martinez-Oviedo |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Photoluminescence General Chemical Engineering chemistry.chemical_element Ethylenediamine 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Photochemistry Oxygen chemistry.chemical_compound 020401 chemical engineering chemistry Photocatalysis Lithium Irradiation 0204 chemical engineering 0210 nano-technology Absorption (electromagnetic radiation) NOx |
| Zdroj: | Korean Journal of Chemical Engineering. 37:1507-1514 |
| ISSN: | 1975-7220 0256-1115 |
| Popis: | Blue TiO2 nanostructures were produced via Lithium/ethylenediamine (Li/EDA) reduction method and applied for photo-oxidative removal of harmful NOx gases under simulated solar light irradiation. Blue TiO2 possesses some unique physicochemical properties such as enhanced visible-light absorption, superficial defects or oxygen vacancies, and the evolution of Ti3+ species. Moreover, the photoluminescence spectra (PL) revealed the efficient separation of photoinduced electron-hole pairs in the modified blue TiO2 nanostructures, enhancing their photocatalytic activities. The results indicated that the blue TiO2 nanostructures exhibited the highest performance towards photo-oxidation of NOx gases, with an efficiency of 72.6% under simulated solar light irradiation. |
| Databáze: | OpenAIRE |
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