Hy everyone, i would like to know when the porous volume of a zeolite diminshes following heat treatments such as ion exchange and impregnation does this mean that we lose some of its cristallinity? thanks for answering to my question please
The loss of porous volume in zeolites after heat treatments such as ion exchange and impregnation does not necessarily indicate a loss of crystallinity. Crystallinity refers to the degree of order in the atomic arrangement of a material, and this is generally not affected by heat treatments that do not exceed the decomposition temperature of the material.
However, heat treatments can cause changes in the pore structure of zeolites, which can lead to a reduction in the total porous volume. This is due to various factors, such as the collapse or partial filling of pores, or the formation of non-porous phases. These changes in the pore structure can affect the performance of the zeolite in various applications, such as catalysis or adsorption.
In summary, the loss of porous volume in zeolites following heat treatments is not necessarily an indication of a loss of crystallinity, but rather a result of changes in the pore structure of the material.
Thank you Professor Ahmad Al Khraisat for answering me. I found it really explainful.
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