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both zeolites showed similar crystallinity, therefore we can assure that the relative crystallinity values detailed in Table 2 for the zeolite samples prepared with and without the biomass-derivatives assistance are comparable to those of conventional Cpatarleysptsa2r0e16d, 6z, 3e0olites. 4 of 11 Figure 1. Diffraction patterns for the different zeolites: Ref. [1] series and Ref. [2]. 2 Theta series Zeolite synthesized for 24 h; NaOH 0.1 mol/L (ZSM-5 A(24)); for 48 h; NaOH Figure 1. Diffraction patterns for the different zeolites: Ref. [1] series and Ref. [2]. series 0.1 mol/L (ZSM-5 B(48)); for 72 h NaOH 0.1 mol/L (ZSM-5 C(72)); for 24 h; NaOH Zeolite synthesized for 24 h; NaOH 0.1 mol/L (ZSM‐5 A(24)); for 48 h; NaOH 0.1 mol/L 0.5 mol/L (ZSM-5 D(24)); for 48 h; NaOH 0.5 mol/L (ZSM-5 E(48)); for 72 h; NaOH (ZSM‐5 B(48)); for 72 h NaOH 0.1 mol/L (ZSM‐5 C(72)); for 24 h; NaOH 0.5 mol/L (ZSM‐5 0.5 mol/L (ZSM-5 F(72)). D(24)); for 48 h; NaOH 0.5 mol/L (ZSM‐5 E(48)); for 72 h; NaOH 0.5 mol/L (ZSM‐5 F(72)). Secondly, ZSM-5 properties were discussed in terms of SAR, textural property, crystal size, and morphology (Table 2). As observed for ZSM-5 reference materials (prepared in the absence of biomass), longer ageing times led to higher SAR values. However, a broad range of SAR was observed and yet the extract obtained at 0.1 mol/L of NaOH resulted in higher values compared to those reached at 0.5 mol/L of NaOH. The SAR based on the bulk composition was remarkably affected and values in the range of 25 to 150 were measured. Microporosities and mesoporosities are rather similar for all zeolites in line with literature data [22,23]. For the sake of clarity, a parent ZSM-5 was characterized by the nitrogen adsorption/desorption technique and similar microporous volumes were measured. ZSM-5 prepared in the presence of biomass derived-compounds exhibited a slightly lower mesoporous volume compared to its parent ZSM-5 counterpart. The ZSM-5 structure is orthorhombic 229 Figure 1. Cont. REF.1 REF.2 ZSM-5 A(24) ZSM-5 B(48) ZSM-5 C(72) ZSM-5 D(24) ZSM-5 E(48) ZSM-5 F(72) 30PDF Image | Zeolite Catalysis
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