Research Article
In Situ Synthesis of Structural Hierarchy Flowerlike Zeolite and Its Application for Fluoride Removal in Aqueous Solution
Figure 5
29Si solid-state magic-angle spinning (MAS) nuclear magnetic resonance (29SiMAS NMR) spectra of the halloysite and zeolite NaA (a). 27Al solid-state magic-angle spinning (MAS) nuclear magnetic resonance (27Al MAS NMR) spectra of the halloysite and zeolite NaA (b).
| (a) Chemical shift (ppm) |
| (b) Chemical shift (ppm) |