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The mesoporous nanotubes of iron phosphate are synthesized by surfactant templating and solvothermal methods. When the concentration of the surfactant (SDS) is set at the transition region between its lamellar and hexagonal mesophases, the coassemblies of iron phosphate and SDS form a flake-type mesoporous iron phosphate. The following solvothermal treatment produces mesoporous nanotubes of FePO4 with diameters of 50-400 nm and lengths of several microns. The removal of surfactant by ion exchange and heat treatment produces the clean nanotubular and mesoporous iron phosphate, which possesses a specific surface area of 232 m2/g and a bimodal distribution of pore sizes, corresponding to the mesopores of the walls and the nanotube diameters, respectively. The novel tubular material with composite meso-macroporous structure, benefiting the diffusion of reactive molecules, has shown better catalytic performance for direct hydroxylation of benzene with hydrogen peroxide compared with conventional mesoporous iron phosphate. ·¢×ÔСľ³æAndroid¿Í»§¶Ë |
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