Zeolite Y

(Gonghu Li, 2005)

LTA zeolite

(Rios et al., 2009)

Zeolite X

(Ozdemir and Piskin, 2013)

IR-spectra for synthesized zeolite

Asymmetric stretching

1135 - 725

950 - 1250

1060 - 971

958 - 1000

Symmetric stretching

1020 - 792

660 - 770

746 - 668

670 - 672

Double rings

(D4R and D6R)

566

500 - 650

560

564

Internal tetrahedral TO₄

(T = Si, Al)

450 - 500

420 - 500

458

444 - 467