The Microwave‐Assisted Ionic‐Liquid Method: A Promising Methodology in Nanomaterials

Abstract

In recent years, the microwave-assisted ionic-liquid method has been accepted as a promising methodology for the preparation of nanomaterials and cellulose-based nanocomposites. Applications of this method in the preparation of cellulose-based nanocomposites comply with the major principles of green chemistry, that is, they use an environmentally friendly method in environmentally preferable solvents to make use of renewable materials. This minireview focuses on the recent development of the synthesis of nanomaterials and cellulose-based nanocomposites by means of the microwave-assisted ionic-liquid method. We first discuss the preparation of nanomaterials including noble metals, metal oxides, complex metal oxides, metal sulfides, and other nanomaterials by means of this method. Then we provide an overview of the synthesis of cellulose-based nanocomposites by using this method. The emphasis is on the synthesis, microstructure, and properties of nanostructured materials obtained through this methodology. Our recent research on nanomaterials and cellulose-based nanocomposites by this rapid method is summarized. In addition, the formation mechanisms involved in the microwave-assisted ionic-liquid synthesis of nanostructured materials are discussed briefly. Finally, the future perspectives of this methodology in the synthesis of nanostructured materials are proposed.

Microwave-assisted rapid synthesis and characterization of CaF 2 particles-filled cellulose nanocomposites in ionic liquid

“…This is due to the restrain effect of cellulose. In the previous study, it was found the restrain effect of cellulose during the synthesis of inorganic materials (Ma, Zhu, Zhu, & Sun, 2014). On the other hand, the effect of the ionic radius may result in the failure synthetic.…”

Characterization of cationic parenchyma cellulose derivative by rapid preparation of low microwave power

“…Figure 15 exhibits the XRD pattern of the PC and its cationic derivatives. The characteristic peaks of PC and insoluble CPC are observed in the diffractions of 16.0°, 22.5°, and 34.7°, which can be indexed to cellulose I crystal [45][46][47]. In comparison with the diffraction pattern of original cellulose, the diffraction pattern of insoluble CPC shows a decrease in intensity and a broadening of peak at 2θ = 22.5°.…”

Progress of Catalytic Valorization of Bio-Glycerol with Urea into Glycerol Carbonate as a Monomer for Polymeric Materials

“…Moreover, compared to the traditional in vacuo manner, reactive distillation improved the glycerol conversion of 29.1% and saved in energy consumption by 37.1%, accordingly. Importantly, the interesting microwave irradiation technology has been developed and employed in various procedures, like chemical reaction [71,72], material synthesis [73], nanotechnology [74] and biochemical processes [75,76]. It is noteworthy that microwave would improve the product yield and shorten the reaction time in producing carbonates from CO 2 and epoxide [77], NaHCO 3 and olefins [78], CO and diols [79], and polycarbonates from open-ring polymerization of trimethylene carbonate [80].…”