“…Microwave radiations can also be applied to produce various TiO 2 nanomaterials [40]. In industrial processing, this method has an advantage of rapid heat transfer and selective heating.…”
Section: Sonochemical and Microwave-assisted Methodsmentioning
Titanium dioxide (TiO 2 ) semiconductor nanoparticles are one kind of important and promising photocatalysts in photocatalysis because of their unique optical and electronic properties. Their properties, which are determined by the preparation method, are very crucial in photocatalysis. In this chapter, an overview was carried out on the different methods that are used or have been used to prepare titanium dioxide nanoparticles. There are various methods that can be used to synthesize TiO 2 and the most commonly used methods include sol-gel process, chemical vapor deposition (CVD) and hydrothermal method among others. This review will focus on selected preparation methods of titanium dioxide photocatalyst.
“…Microwave radiations can also be applied to produce various TiO 2 nanomaterials [40]. In industrial processing, this method has an advantage of rapid heat transfer and selective heating.…”
Section: Sonochemical and Microwave-assisted Methodsmentioning
Titanium dioxide (TiO 2 ) semiconductor nanoparticles are one kind of important and promising photocatalysts in photocatalysis because of their unique optical and electronic properties. Their properties, which are determined by the preparation method, are very crucial in photocatalysis. In this chapter, an overview was carried out on the different methods that are used or have been used to prepare titanium dioxide nanoparticles. There are various methods that can be used to synthesize TiO 2 and the most commonly used methods include sol-gel process, chemical vapor deposition (CVD) and hydrothermal method among others. This review will focus on selected preparation methods of titanium dioxide photocatalyst.
“…Серед них можна виділити: золь-гель метод [21][22][23], метод осадження з безводного рідинного середовища [24][25][26], гідротермальний [27][28][29], темплатний [30][31][32], сольвотермальний [33][34][35] методи, метод анодного окиснення [36], міцелярний метод [37][38], хімічне осадження з парової фази [39], сонохімічний [40][41][42], та мікрохвильовий [43][44][45] методи. Проте, саме гідро-термальна обробка відкриває широкі можливості для керування морфологією TiO 2 та розміром і ступенем кристалічності його частинок [46].…”
Гідротермальний синтез нанодисперсного діоксиду титану (огляд)1 ДЗ "Південноукраїнський національний педагогічний університет імені К.Д. Ушинського", вул. Старопортофранківська, 26, м. Одеса, 65020, Україна,
“…It is easy to operate, efficient in terms of energy and therefore is considered more environment-friendly. [23][24][25] In the case of TiO 2 the most clear advantage brought out by this route is the reduction of processing time, [26][27][28][29][30] other reported advantages are the production of smaller particles and differences in the polymorphs when compared with those obtained from conventional heating. 29 The microwave (MW) time reduction effect is a consequence of the enhancement in the reaction rate, due to improvements in the nucleation step.…”
Nanocrystalline anatase was synthesized, using both domestic and laboratory microwave ovens, from different precursors. Nanoparticulate anatase was obtained after microwave irradiation of tetra-butyl orthotitanate solution in benzyl alcohol. As-synthesized samples have orange color due to the presence of organics that were eliminated after annealing at 500°C, whereas the size of small anatase nanocrystals (around 8 nm) was preserved. Other nanocrystalline anatase samples were obtained from hexafluorotitanate-organic salt ionic liquid-like precursors. In this case, use of a domestic microwave oven and very short processing times (1-3 min irradiation time) were involved. Good specific capacity values and capacity retention at high C rates for insertion/deinsertion of Li 1 were recorded when testing such nanoparticles as electrode material in lithium cells. The electrochemical performances were found be strongly dependent on the phase composition, which in turn could be tuned through the synthetic procedure.
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