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Author:

Sheng, Mengdi (Sheng, Mengdi.) | Ouyang, Teng (Ouyang, Teng.) | Sun, Jihong (Sun, Jihong.) (Scholars:孙继红) | Bai, Shiyang (Bai, Shiyang.) | Wu, Xia (Wu, Xia.)

Indexed by:

EI Scopus SCIE

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.

Keyword:

Clinoptilolite Structural promotor Aluminosilicate sol Fractal SAXS

Author Community:

  • [ 1 ] [Sheng, Mengdi]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China
  • [ 2 ] [Ouyang, Teng]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China
  • [ 3 ] [Sun, Jihong]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China
  • [ 4 ] [Bai, Shiyang]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China
  • [ 5 ] [Wu, Xia]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 孙继红

    [Sun, Jihong]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China;;[Bai, Shiyang]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 PingLeYuan, Beijing 100124, Peoples R China

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Source :

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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