Abstract: A method for combined characterization of pore structure includes steps as follows. Firstly, CO2, N2 and high-pressure mercury intrusion porosimetry characterization curves are plotted based on actual measurement data, then, average values of the overlapping range of the CO2 and N2 characterization curves are calculated, and a function yi?=ƒ(x) is fitted. Each pore volume yi? corresponding to each pore diameter xi is calculated, and a curve is plotted with xi as a horizontal coordinate and yi? as a vertical coordinate, thereby obtaining a characterization curve of the overlapping range between CO2 and N2 adsorptions. The same data processing is used to process the overlapping range data of the N2 and high-pressure mercury intrusion porosimetry characterization curves, to obtain the characterization curve between them. The characterization curves are spliced with the original CO2, N2, and high-pressure mercury intrusion porosimetry characterization curves to obtain a combined characterization curve.

Abstract: A method of synthesizing anatase TiO2 nanosheets, the method comprising the steps of: (a) mixing a titanium complex with an ethanolamine derivative; (b) adding water to form a mixture; and (c) heating the mixture at a temperature ranging from about 150° C. to about 200° C. to obtain anatase TiO2 nanosheets having O-terminated {100} facets.

Abstract: The present invention discloses a method preparing a TiO2 nanostructure comprising: mixing an organic acid and an aminoalcohol to form an ionic liquid; heating the ionic liquid with titanium ions and lithium ions to form a layered structure; and annealing the mixture to form the TiO2 nanostructure. There is also provided uses of the prepared nanostructure.