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Received January 21, 2020
Accepted April 27, 2020
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Modified blue TiO2 nanostructures for efficient photo-oxidative removal of harmful NOx gases
Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam 1Department of Fusion Science and Technology, Sun Moon University, Asan 31460, Korea 2Department of Environmental and Bio-chemical Engineering, Sun Moon University, Asan 31460, Korea 3Research Center for Eco-Multifunctional Nano Materials, Sun Moon University, Asan 31460, Korea
ggobinda@sunmoon.ac.kr
Korean Journal of Chemical Engineering, September 2020, 37(9), 1507-1514(8), 10.1007/s11814-020-0560-z
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Abstract
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.
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References
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