Abstract: Research progress in the soft/hard template assisted fabrication of porous MgO,CaO,and CaCO₃ was summarized.Three-dimensional ordered macroporous polycrystalline MgO material with wormhole-like mesoporous walls could be generated with the triblock copolymer Pluronic F127 (PEO₁₀₆PPO₇₀PEO₁₀₆) and regularly packed monodispersed polymethyl methacrylate microspheres as soft and hard templates,respectively.By adopting the hydrothermal strategies,mesoporous polycrystalline CaCO₃,single-crystalline MgO,and single-crystalline CaO nano-and/or mircoparticles with rectangular parallelepiped and hexagonal prism morphologies could be obtained with triblock copolymer Pluronic P123 (PEO₂₀PPO₇₀PEO₂₀),cetyltrimethylammonium bromide,and poly(ethylene glycol) as soft template.Adopted hydrothermal temperature and surfactant nature greatly influenced the morphology,pore structure,and surface area of the as-obtained sample.Highest surface areas of the as-fabricated porous MgO,CaO,and CaCO₃ samples were 298,257,and 134 m²/g,respectively.

Key words: templating synthesis method, porous material；magnesium oxide, calcium oxide, calcium carbonate