Porous C/SiC ceramics were prepared by chemical vapor reaction of SiO and porous C/C composites. The porous C/SiC ceramics presented a hierarchical structured consisted of carbon fibers, SiC layer, microspheres and nanowires. The density of porous C/C composites control the growth of SiC nanowires and nanolayer, and influence the pore size distribution and specific surface area of the porous C/SiC ceramics. The C/SiC samples converting from the C/C composites with a density of 0.46 g/cm³ possess the superior adsorption properties. The adsorption efficiency can reach 98.2% within 80 min, indicating that C/SiC samples have a promising adsorption property for MB from aqueous solution. Furthermore, the adsorption efficiency after five cycles microwave regeneration still reached 80.2%, which present excellent regeneration stability.

通过SiO与多孔C / C复合材料的化学气相反应制备了多孔C / SiC陶瓷。多孔C / SiC陶瓷呈现出由碳纤维，SiC层，微球和纳米线组成的分层结构。多孔C / C复合材料的密度控制SiC纳米线和纳米层的生长，并影响多孔C / SiC陶瓷的孔径分布和比表面积。由C / C复合材料转换而成的C / SiC样品，密度为0.46 g / cm ³具有优异的吸附性能。80分钟内吸附效率可达到98.2％，表明C / SiC样品对水溶液中的MB具有良好的吸附性能。此外，微波再生5个循环后的吸附效率仍达到80.2％，表现出优异的再生稳定性。