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. 2022 Apr 15;27(8):2557. doi: 10.3390/molecules27082557

Figure 1.

Figure 1

SEM and XRD tests of NMGM with different NaOH additions: (a,c,e,g) are the SEM tests of NMGM with Na2O/SiO2 of 0.2, 0.4, 0.8, 1.2, respectively; (b,d,f,h) SEM of NMGM with Na2O/SiO2 of 0.2, 0.4, 0.8, 1.2, respectively; (i) is the XRD pattern of different Na2O/SiO2 ratios (*: characteristic peaks of NaA molecular sieves).