We report here a Cu(II)-Schiff base complex that can assemble into one-dimensional (1D) nanoscale fibers, belts, and rods under different synthetic conditions. The ligand-structure effect is investigated by modification of the ligand structure. The formation of a 1D nanostructure was studied, and the formation of dimers was revealed as a key factor for 1D assembly. In dimethylformamide (DMF) medium, this complex represents one of the rare examples of low-molecular-weight “super-metallogelators” with a critical gelation concentration of 0.3 wt % for DMF. The ligand exhibits good selectivity toward different metal ions in terms of gel formation and only the Cu(II) complex forms gels. It is interesting that this metallogel is a kind of dynamic nanostructure, which can be transformed to rods with different aspect ratios via a solvent-mediated process under stimulation of ultrasound.

This work reports the synthesis of the coordinated Eu2O3 ethanol colloids by focused pulsed laser ablation at the interface of solid Eu2O3 target and a flowing liquid containing thenoyltrifluoroacetone (TTA) and 1,10-phenanthroline (Phen). The high resolution transmission electron microscopy, X-ray diffraction and infrared spectroscopy results show the coordinated Eu2O3 nanoparticles have the structure of an inner core of crystal Eu2O3 and an outer layer of ligands, TTA and Phen, coordinated to the surface europium ions of the Eu2O3 nanoparticles. Thermal stability analysis shows the mass of ligands in coordinated Eu2O3 clusters is 14.36%. The coordinated Eu2O3 ethanol colloids can irradiate intense red light under ultraviolet radiation, and their fluorescence spectrum presents typical characteristic emission peaks of Eu3+ ions.

The cyclohexane solution of PS (polystyrene) and the ethyl acetate solution of PMMA (polymethyl methacrylate) were used as flowing liquid; the ZnO/polymer hybrid colloids were successively produced by focused pulsed laser ablation of ZnO target in interface of solid and flowing liquid. As solvent in the hybrid colloids has volatized, the ZnO/polymer hybrid films were obtained. The hybrid colloids were characterized by high-resolution transmission electron microscopy (HRTEM) and select-area electron diffraction (SEAD). The results show a good dispersion of the ZnO nanoparticles in the polymer matrix. The hybrid films were characterized by fluorescence spectrum, Fourier transform infrared spectroscopy (FTIR) spectroscopy, thermogravimetry with FTIR (TG/FTIR), and X-ray photoelectron spectrum. The results show the ZnO/polymer hybrid films can radiate strong blue light under ultraviolet. Meanwhile, the ZnO/polymer hybrid films have higher chemical stability than ZnO nanoparticles because nano-ZnO nanoparticles were enwrapped by polymers. In addition, the ZnO hybrid films have higher thermal stability then the related pure polymers because of strong interaction among ZnO nanoparticles and polymers.

Nano Eu2O3 ethanol sols modified in situ were successively prepared by focused pulsed laser ablation at the interface of Eu2O3 target submerged in flowing liquid containing modifiers. It is found that the decorated nano Eu2O3 ethanol sols can radiate intense red light under ultraviolet radiation. The fluorescence spectrum of decorated nano Eu2O3 ethanol sol exhibits the characteristic peak of Eu3+ ion at 612 nm, which is different from that of non-decorated nano Eu2O3 ethanol sol. It is proved that the luminescence mechanism of nano Eu2O3 ethanol sols is the same as that of europium coordinate complex.