Template Synthesis Of Three Kinds Of Mesoporous Metal Oxide Nanomaterials

Mesoporous nano metal oxide materials are novel functional materials. There are many special advantageous properties, such as regular porous structure, adjustable aperture within 2-50 nm, high specific surface area, excellent thermal stability, easily modified surface and so on. So these materials are applied in the field of catalysts and catalyst supports, new composite materials, adsorption materials.P123 acted as soft template, the mesoporous nickel oxide(NiO) nanomaterials were synthesized by precursor route and solvothermal methods, and their adsorption properties were also studied. The mixture of Nickel nitrate, ethanol and water was used as precursors, and P123 was used as a structure directing agent, the NiO mesoporous materials were obtained by solvothermal methods under certain temperature and time conditions. The synthesized products were characterized in detail by TG, XRD, TEM and other analytical testing methods. The analysis results show that synthesized products are NiO microspheres which are composed by mesoporous lamellar, The diameter size of NiO microspheres can be improved by increasing the reaction temperature and prolonging the reaction time. The NiO microspheres have a good adsorption capacity for Congo Red solution, and the maximum adsorbent rate can reach 96.80%.P123 acted as soft template and anodic aluminum oxide(AAO) as hard template, the one-dimensional rare earth mesoporous nanomaterials are synthesized as rare earth metal source, the mixture of praseodymium nitrate/neodymium nitrate, P123, ethanol and water used as precursors, the nano channel of AAO template were filled with precursors and annealed, one dimensional Pr6O11/Nd2O3 mesoporous nanomaterials were obtained in the hole of the AAO template. The synthesized products were characterized by TG, XRD, TEM, and other analytical testing methods. The one-dimensional Pr6O11/Nd2O3 have mesoporous strcture, uniformly distributed and larger surface area. The one-dimensional Pr6O11/Nd2O3 have a good adsorption capacity for Congo Red solution.