molecular sieves otherwise zeolite-like materials (rus. молекулярные сита otherwise цеолитоподобные материалы) — materials with a regular system of pores usually ranging from 0.2 to 2 nm in size that allow separating components of a compound depending on the size and shape of their molecules.

Description

Molecular sieves include porous materials of different compositions and structures with pore sizes equivalent to the sizes of molecules. Typical molecular sieves include some metallosilicates (including zeolites ), aluminophosphates, carbon materials, metal-organic frameworks, etc. Molecular sieves are used primarily as selective sorbents and catalysts.

Illustrations

Microphotograph of mordenite type zeolite with pore size ~0.7 nm
Microphotograph of mordenite type zeolite with pore size ~0.7 nm taken by a transmission electron microscope. Author: Andrey V. Smirnov, Lomonosov Moscow State University.

Authors

  • Smirnov Andrey V.
  • Tolkachev Nikolay N.

Source

  1. Szostak R. Molecular Sieves. Principles of Synthesis and Identification. — N.Y.: Van Nostrand Reinhold, 1989. — 524 p.

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