Fig. 1 | Scientific Reports

Fig. 1

From: Preparation of ultramarine green pigments by recycling of the discarded molecular sieves for green vegetation spectral simulation

Fig. 1

The XRD pattern corresponding to (a) different heat-treatments condition and (b) different mass ratio of Na2CO3/S; (c) Raman spectra of the synthesized sample; FTIR spectrum of (d) different heat-treatments condition and (e) different mass ratio of Na2CO3/S; (f) Structural of ultramarine green pigments. The \(\:\varvec{\upbeta\:}\) -cage (right) is a unit cell of the framework and spheres represent Si (blue) Al (grey) and S2− (green).

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