Facile Synthesis of High Quality TiO₂ Nanocrystals in Ionic Liquid via a Microwave-Assisted Process

Abstract

Herein we report a facile method to synthesize anatase nanocrystals (NCs) with uniform size and shape via a microwave-assisted route in ionic liquid. These NCs are highly crystalline, low in Ti3+ defect, and free of aggregation.

Microwave-assisted rapid synthesis of anatase TiO₂ nanosized particles in an ionic liquid-water system

“…However, this process requires a subsequent calcination at 500°C to obtain the crystalline phase. Kunlun et al 25) synthesized TiO 2 nanoparticles in 1-butyl-3-methylimidazolium tetrafluoroborate using a MW-assisted process. Although well-defined crystalline TiO 2 particles were directly obtained in the IL, high temperature over 230°C is probably essential for crystallization.…”

Microwaves as a synthetic route for preparing electrochemically active TiO2 nanoparticles

“…32 Interestingly, microwave-assisted synthesis can be carried out in domestic microwave ovens, [33][34][35] reproducible results being achieved as long as the amount of reagents, the irradiation time and the resting periods between irradiation intervals are adequately controlled. [36][37][38][39][40] The use of domestic apparatus has the advantage of lower cost whereas ovens specifically designed for laboratory operation allow temperature and pressure control. 41 In some MW laboratory ovens the irradiation of the sample can be much more homogeneous than in domestic MW ovens.…”

Nanostructuring of 1-butyl-4-methylpyridinium chloride in ionic liquid–iron oxide nanofluids

“…Longer alkyl side chains (greater than or equal to C 4 ) can cause the segregation of polar and nonpolar domains [3,4]. Besides, with a strong nanostructural organization tendency, many ILs are also used as a template or a surfactant for template-assisted, shapecontrolled synthesis of different nanostructures [5].…”