Hydrothermal solidification of zeolite/tobermorite composites
Hydrothermal solidification of zeolite/tobermorite composites
复制标题
DOI：
10.2109/jcersj2.117.147
复制
发表时间：
2009-02
影响因子：
1.1
通讯作者：
H. Maeda;T. Okada;E. H. Ishida
中科院分区：
文献类型：
--
作者：
H. Maeda;T. Okada;E. H. Ishida
通过水热处理由丝光沸石和熟石灰组成的粉末压坯制备新型沸石/雪硅钙石复合材料。由于丝光沸石和熟石灰的反应，水热过程后形成托贝莫来石。水热加工后的弯曲强度大于7MPa。 X射线衍射分析结果表明，水热处理后丝光沸石残留，导致复合材料中存在丝光沸石固有的微孔。该复合材料表现出超过 6 nm 的宽介孔尺寸分布。复合材料的强度、中孔形成和比表面积的改善取决于形成的雪硅钙石的数量和尺寸。
Novel zeolite/tobermorite composites were prepared by hydrothermal treatment of a powder-compact consisting of mordenite and slaked lime. Tobermorite formed after the hydrothermal process due to the reaction of mordenite and slaked lime. The bending strength after the hydrothermal process was more than 7 MPa. X-ray diffraction analysis results showed that mordenite remained after the hydrothermal treatment, resulting in the existence of inherent micropores of mordenite in the composites. The composites exhibited a broad mesopore size distribution of more than 6 nm. The improvement in strength, mesopore formation, and specific surface area of the composites depended on the amount and size of the tobermorite that was formed.