The present and future roles of banks in small business finance

ZnS nano-microcrystallites with different size were controllably synthesized by a facile homogeneous precipitation method. The products were characterized by X-ray diffraction, field emission scanning electron microscopy, high resolution transmission electron microscopy, N2-sorption BET surface area and UV–vis diffused reflectance spectra for their morphology, size and optical performance. Results show that the crystallinity and size of the...