三维金属氧化物纳米材料的研究进展

As a newly developing continuous porous nanomaterial, three-dimensional metal oxide nanomaterials (3D-MONs) have triggered increased interest, which not only maximally keep the unique inherited chemical nature of metal oxides, but also endow them with excellent physical properties, including extremely low density, high specific surface area, high porosity as well as low thermal conductivity. This article mainly featured recent research progress towards various preparation methods of 3D-MONs, such as hydrothermal synthesis, sol-gel method, template method, solution blow-spinning technique and direct foaming method. Their similarities and differences were discussed. Applications of 3D-MONs in sewage treatment, air cleaning, energy storage and thermal insulation were also discussed. On this basis, the problems to be solved in the synthesis of 3D-MONs and their application prospects are propose.