sepiolite

The special structure of sepiolite determines that it contains zeolites throughout the structure. Water channels and holes and large surface area, it has a cross-sectional area of 0.36nm×1.06nm tubular through-channel and a theoretical surface area of up to 900. A large amount of water or polar substances, including low polar substances, can be absorbed in the channels and pores, so sepiolite has a strong adsorption capacity. It has strong adsorbability and can be used to improve the large specific surface, which makes it a good catalyst carrier. Some surface properties of sepiolite (such as weak surface acidity, magnesium ions are easy to be replaced by other ions, etc.), so that it can also be used as a catalyst for some reactions. So sepiolite is not only a good adsorbent, but also a good catalyst and catalyst carrier. The crystal structure of sepiolite has a continuous silica-oxygen tetrahedral layer. Each silicon - oxygen tetrahedron is connected to three adjacent tetrahedrons by sharing two angular peaks. The reactive oxygen species in the tetrahedron are periodically inverted along the B-axis, thus forming open channels of fixed size Wells parallel to the chain, which contain zeolite water. At the edge of the octahedron, two water molecules bind to magnesium ions and participate in the octahedral coordination.