SSSAJ -- Saha et al. 68 (4): 1197 Figure IG1

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Fig. 1. Fourier transform infrared (FTIR) spectra of untreated montmorillonite (Mt), hydroxyaluminum (HyA)-Mt, and hydroxyaluminosilicate (HAS)-Mts: untreated Mt (a), HyA-Mt (b), hydroxyaluminosilicate with Si/Al molar ratio = 0.24 (HAS1)-Mt (c), and hydroxyaluminosilicate with Si/Al molar ratio = 0.48 (HAS2)-Mt (d).