Indium sulfide hollow spheres consisting of nanoflakes with the thickness of about 20 nm were successfully prepared by dodecanethiol-assisted hydrothermal process at 180°C for 12 h, employing indium chloride tetrahydrate and L-cysteine as precursors. The diameter of In 2 S 3 hollow spheres is 3-5 µm. More interesting, some hollow spheres hold multipore shells. And indium sulfide hollow spheres can be converted to indium oxide hollow spheres consisting of multipore sheets when In 2 S 3 hollow spheres were oxidized in atmosphere in Muffle at 600°C for 6 h. The synthesized product was characterized by X-ray diffraction, energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, electron diffraction, UV-vis, and fluorescence spectrophotometer. The effects of the reaction conditions on morphologies of In 2 S 3 structures were investigated. The results show that temperature, sulfur source, and dodecanethiol play key roles on the formation of the morphology of In 2 S 3 crystal. The optical properties were also investigated. And the formation mechanism of In 2 S 3 hollow spheres is discussed.

Netted sphere-like CdS nanostructures consisting of the dentritic nanolines were prepared in ethylenediamine using L-cysteine and cadmium nitrate tetrahydrate as precursors by a solvothermal process at 150 °C for 8 h. The reaction time, the molar ratio of precursors, solvent, and temperature can be used as the additional means to control the size and morphology. The synthesized product was characterized by X-ray powder diffraction (XRD), Fourier transform-infrared (FT-IR) spectroscopy, Field emission scanning electron microscopy (FESEM), Energy-dispersive X-ray fluorescence spectroscopy (EDXS), Transmission electron microscopy (TEM), High-resolution transmission electron microscopy (HRTEM), Electron diffraction (ED), Ultraviolet–visible (UV–vis) spectrometer, Raman spectroscopy, and Fluorescence spectrophotometer. And the possible formation mechanism of the netted sphere-like CdS nanostructures is proposed.

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