PROBLEM TO BE SOLVED: To provide a porous hollow particle which has an inorganic porous structure of a metallic compound and maintains the shell shape of a particulate biomaterial, its manufacturing method, and a functional member.SOLUTION: The porous hollow particle is made by precipitating the metallic compound on the surface of the particulate biomaterial or covering the surface with the metallic compound, has the porous structure of the metallic compound, and maintains the shell shape of the particulate biomaterial. The functional member contains the hollow particle as a component. The manufacturing method can easily manufacture micron-sized porous hollow particle of which the particle shape and particle diameter are relatively uniform by an environment-friendly method. The porous hollow particle can be suitability used as a particulate material for, for example, an adsorbent, a separation material, pigment, a cosmetic, a catalyst, and paint by using its characteristics, such as high adsorptive capacity, a high light-reflex property, and a high friction function.COPYRIGHT: (C)2007,JPO&INPIT【課題】金属化合物の無機多孔質構造を有し、粒子状生体材料の外殻形状を保持している多孔質中空粒子、その製造方法及び機能性部材を提供する。【解決手段】粒子状生体材料の表面に金属化合物を析出又は被覆して形成した中空粒子であって、該金属化合物の多孔質膜構造を有し、該生体材料の外殻形状を保持している多孔質中空粒子、その製造方法、及び機能性部材。【効果】粒子形状及び粒子径が比較的均一に揃ったミクロンサイズの多孔質中空粒子を、簡便に、環境に優しい手法で作製し、提供することができる。この多孔質中空粒子は、その高吸着性能、高光反射性能、高摩擦機能等の特性を利用して、例えば、吸着剤、分離材、顔料、化粧料、触媒、塗料等の微粒子材料として好適に利用することができる。【選択図】図4
