Laser oxidative pyrolysis synthesis and annealing of TiO2 nanoparticles embedded in carbon–silica shells/matrix

2015 ◽  
Vol 336 ◽  
pp. 226-233 ◽  
Author(s):  
C.T. Fleaca ◽  
M. Scarisoreanu ◽  
I. Morjan ◽  
C. Luculescu ◽  
A.-M. Niculescu ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Oxidative Pyrolysis ◽  
Pyrolysis Synthesis

Preparation of Thin Films of TiO2 Nanoparticles using Electrophoresis Deposition Method

2009 ◽  
Vol 129 (9) ◽  
pp. 620-626
Author(s):  
Kazuatsu Ito ◽  
Yuuki Sato ◽  
Motonari Adachi ◽  
Shinzo Yoshikado
Keyword(s):  
Thin Films ◽  
Tio2 Nanoparticles ◽  
Deposition Method ◽  
Electrophoresis Deposition

Thermo-Oxidative Decomposition of Lovage (Levisticum officinale) and Davana (Artemisia pallens) Essential Oils under Simulated Tobacco Heating Product Conditions

2020 ◽  
Vol 29 (1) ◽  
pp. 27-43
Author(s):  
Emma Jakab ◽  
Zoltán Sebestyén ◽  
Bence Babinszki ◽  
Eszter Barta-Rajnai ◽  
Zsuzsanna Czégény ◽  
...  
Keyword(s):  
Low Temperature ◽  
Essential Oils ◽  
Relative Yield ◽  
Gas Chromatography Mass Spectrometry ◽  
Intramolecular Rearrangement ◽  
Oxidation Reactions ◽  
Pyrolysis Gas ◽  
Oxidative Decomposition ◽  
Oxidative Pyrolysis ◽  
Artemisia Pallens

SummaryThe thermo-oxidative decomposition of lovage (Levisticum officinale) and davana (Artemisia pallens) essential oils has been studied by pyrolysis-gas chromatography/mass spectrometry in 9% oxygen and 91% nitrogen atmosphere at 300 °C to simulate low-temperature tobacco heating conditions. Both lovage and davana oils contain numerous chemical substances; the main components of both oils are various oxygen-containing compounds. Isobenzofuranones are the most important constituents of lovage oil, and their relative intensity changed significantly during oxidative pyrolysis. (Z)-ligustilide underwent two kinds of decomposition reactions: an aromatization reaction resulting in the formation of butylidenephthalide and the scission of the lactone ring with the elimination of carbon dioxide or carbon monoxide. Davanone is the main component of davana oil, which did not decompose considerably during low-temperature oxidative pyrolysis. However, the relative yield of the second most intensive component, bicyclogermacrene, reduced markedly due to bond rearrangement reactions. Davana ether underwent oxidation reactions leading to the formation of various furanic compounds. The changes in the composition of both essential oils could be interpreted in terms of bond splitting, intramolecular rearrangement mechanisms and oxidation reactions of several constituents during low-temperature oxidative pyrolysis. The applied thermo-oxidative method was found to be suitable to study the stability of the essential oils and monitor the decomposition products under simulated tobacco heating conditions. In spite of the complicated composition of the essential oils, no evidence for interaction between the oil components was found. [Beitr. Tabakforsch. Int. 29 (2020) 27–43]

Advances in the laser pyrolysis synthesis of nanoparticles

2006 ◽  
Vol 31 (3) ◽  
pp. 295-315 ◽  
Author(s):  
Nathalie Herlin-Boime ◽  
Martine Mayne-L'Hermitte ◽  
Cécile Reynaud
Keyword(s):  
Laser Pyrolysis ◽  
Synthesis Of Nanoparticles ◽  
Pyrolysis Synthesis

Effect of Oleic Acid Surface Modification on Dispersibility of TiO2 Nanoparticles in Transformer Oils

2013 ◽  
Vol 28 (6) ◽  
pp. 594-598 ◽  
Author(s):  
Yu-Zhen LÜ ◽  
Sheng-Nan ZHANG ◽  
Yue-Fan DU ◽  
Mu-Tian CHEN ◽  
Cheng-Rong LI
Keyword(s):  
Surface Modification ◽  
Oleic Acid ◽  
Tio2 Nanoparticles ◽  
Transformer Oils

Visible Light Active Ce-doped TiO2 Nanoparticles for Photocatalytic Degradation of Methylene Blue

2016 ◽  
Vol 13 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Rani P. Barkul ◽  
Farah-Naaz A. Shaikh ◽  
Sagar D. Delekar ◽  
Meghshyam K. Patil
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Tio2 Nanoparticles ◽  
Doped Tio2 ◽  
Visible Light Active
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