Synthesis of two-dimensional TiO2@multi-walled carbon nanotube nanocomposites as smart nanocatalyst for ultra-deep oxidative desulfurization of liquid fuel: Optimization via response surface methodology

Deep Oxidative Desulfurization of Model Fuels Catalyzed by Subnanosized Ti Oxoclusters

“…These peaks are characteristic for anatase TiO 2 according to the reference code (JCPDS 21-1272). 58,59 The average particle diameter which was calculated using the Debye−Scherrer equation was 14.87 nm for anatase TiO 2 . 60 In addition, the ILstabilized Ti oxoclusters (Ti oxo−Br, Ti oxo−HSO 4 , Ti oxo− OTf, and Ti oxo−PF 6 ) all showed an amorphous structure (Figure S6b−e), and the peaks attributing to the anatase phase almost were not discernible, revealing that the Ti oxocluster showed very poor crystallinity due to the modification of ILs, in comparison with the as-synthesized 500-TiO 2 .…”

Combined Heterogeneous Catalyst Based on Titanium Oxide for Highly Efficient Oxidative Desulfurization of Model Fuels

“…The authors of refs − have shown that the use of titanium-containing zeolite TS-1 as a catalyst makes it possible to completely oxidize the model mixture of DBT with hydrogen peroxide or organic peroxides without ultraviolet exposure. The synthesis of various titanium silicates and the deposition of titanium and its oxide on mesoporous supports also allow for oxidation without an ultraviolet source, − while the authors of the study also managed to reduce the reaction time to 20 min.…”

“…Titanium oxide is of particular interest among carriers due to its unique physicochemical properties, non-toxic nature, relative cheapness, and accessibility, as well as due to its resistance to ultraviolet irradiation and stability for aggressive oxidant treatment. , The application of titanium oxide with various additives as a catalyst for oxidative desulfurization under ultraviolet irradiating is known. − Despite the high activity at low temperatures, such catalysts have significant drawbacks when introduced to industrythe use of light for hydrogen peroxide decomposition. Approaches for the production of titanium-containing catalysts that do not require UV radiation are known in the literature. − These catalytic systems require a sufficiently long time of oxidation, and therefore the task is to develop catalysts in the presence of which oxidation will take place without UV and in a minimum contact time.…”

Numerical investigation of TiO2 and MWCNTs turbine meter oil nanofluids: Flow and hydrodynamic properties

“…Titanium dioxide (TiO2) nanoparticles are used in many industries because of their excellent heat transfer, lubricity, optical, electrical, and catalytic properties. These applications include industrial pigments, environmental clean-up photocatalysts, skin protectors in sunscreens, and lubricants as additives [24][25][26][27][28][29]. Many investigations have shown the anti-friction characteristics of TiO2 nanoparticles due to their inherent anti-friction functionality, ease of synthesis, and low toxicity [30][31][32][33].…”