[Study on crystal structure of modified mordenite].

Area of Science:

• Materials Science
• Inorganic Chemistry
• Zeolite Chemistry

Context:

• Mordenite is a widely used zeolite mineral.
• Understanding structural modifications is key to optimizing its properties.
• Ion exchange is a common method for altering zeolite characteristics.

Purpose:

• To investigate the structural and adsorption property changes in mordenite after Al3+ supplementation.
• To analyze the impact of substituting silicon (Si4+) with aluminum (Al3+) on the mordenite framework.

Summary:

• The crystal structure of mordenite remains unchanged after Al3+ supplementation on Si4+ sites.
• Increased negative charges attract more positive ions (Na+, K+) and crystal water into the lattice.
• Unit cell dimensions expand, vacancy volume increases, and adsorption capacity is enhanced.

Impact:

• Modified mordenite exhibits improved adsorption capabilities.
• This research provides insights into tailoring zeolite structures for specific applications.
• The findings contribute to the development of advanced materials for separation and catalysis.