Preparation And Characterization Of Nanomaterials With Ordered Structure

Several nanomaterials with ordered structure were prepared and characterized in this paper. It has hotspot study to prepare a great variety of nanomaterials with ordered structure assembled by nano constitutional unit structure, recently including nanothin film, nanotubes, nanowires(nanorods), dandelions, nanoprisms, nanodisks, nanocubes , nanobox, nano-triangle and some other complex structures, such as, pactination, fashbones, brige, hollow spheres, reticulin, mult-arms nanorods.The first part of this paper is aimed to prepare several sulfides with quaternary ammonium salt of 2-undecyl-1-dithioureido-ethyl-imidazoline (SUDEI) with blocklike structures (see the formula 3) as surfactant and template. The sulfides were characterized by TEM, SEM, XRD, UV-vis, respectively. It have not been reportedup to now to use SUDEI as template influence nanomaterials with ordered structure.â‘  In the presence of SUDEI, the monodisperse face-centered cubic β -sphalerite ZnS nanocrystal aggregates with average size of about 20⁵0 nm were synthesized through hydrothermal method.â‘¡ Mono-dispersed ZnS hollow spheres with diameter of 300⁵00 nm and the shell thickness of about 100¹50 nm have been synthesized by solvothermal method from ethanol solution in the presence of SUDEI. Its forming mechanism is similar to "organic-inorganic hybrid micelles" mechanism.â‘¢ Sb₂S₃ coralloid spheres with diameter of 2³ μm have been prepared under hydrothermal conditions. It was inferred that slice was firstly formed and then assembled and embed stepwise to form spheres in the presence of SUDEI.â‘£ PbS nanocrystal arranged planar sheet, monodisperse CdS nanoparticals, and monodispersed Bi₂S₃ nanorods have been prepared by a hydrothermal conditions in the presence of SUDEI.In the second part, we improved the previous work and amphiphilic polymer P(C₉-DMC) was synthesized through free radical polymerization which was used as...