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Abstract:
Nanosol precursors with different hydrothermal treatment time were obtained at 150 degrees C, which was used as structure promoter (SP) to synthesis the clinoptilolites (CPs). The effected mechanism of the SP on the selforganization stage, the nucleation and growth of CP was investigated by XRD, SEM, SAXS, DLS, Uv-Raman, FT-IR and Si-29-NMR. During the self-organization stage of the SP with shorter pre-crystallization time (less than 100 h), its fractal structure underwent a process from densification (surface fractal) to looseness (mass fractal), and then to densification (surface fractal) accompanying with increased particle size and enhanced crystallinity of CP, which effectively promoted the formation of crystal nuclei, acting as structure directing agent. While the crystal growth of resultant CP in the SP pre-crystallized for longer time (144 h) could shorten the induction period, but had little impact on the growth period, serving as "seed". However, overmuch resulted in that a large amount of heterophase (phillipsite) coexisted with CP.
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MATERIALS CHEMISTRY AND PHYSICS
ISSN: 0254-0584
Year: 2021
Volume: 263
4 . 6 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:116
JCR Journal Grade:2
Cited Count:
WoS CC Cited Count: 9
SCOPUS Cited Count: 9
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 8
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