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author:

Yue, Y. (Yue, Y..) [1] | Kang, Y. (Kang, Y..) [2] | Bai, Y. (Bai, Y..) [3] | Gu, L. (Gu, L..) [4] | Liu, H. (Liu, H..) [5] | Bao, J. (Bao, J..) [6] | Wang, T. (Wang, T..) [7] | Yuan, P. (Yuan, P..) [8] | Zhu, H. (Zhu, H..) [9] | Bai, Z. (Bai, Z..) [10] | Bao, X. (Bao, X..) [11]

Indexed by:

Scopus

Abstract:

The hydrothermal synthesis of zeolite from chemical Al/Si source in the presence of structure directing agent is considered to be a resource extensive, energy consuming, and environmental unfriendly process. Herein, we report a novel, cost-effective, and eco-friendly synthesis for the preparation of ZSM-5 zeolite from silicon-rich diatomite and aluminum-rich rectorite minerals in the absence of organic structure-directing agent and chemical Al/Si source. Synthesis factors (SiO 2 /Al 2 O 3 , Na 2 O/SiO 2 , and H 2 O/SiO 2 molar ratios along with seed content) and crystallization behavior were systematically investigated, providing fundamental knowledges on the formation of ZSM-5 from natural minerals. Synthesis under the optimized conditions (SiO 2 /Al 2 O 3 ratio of around 38, Na 2 O/SiO 2 ratios of 0.12–0.15, H 2 O/SiO 2 ratios of 15–25, and seed content above 0.5%) led to production of highly crystalline ZSM-5 zeolite with hexagonal prism morphology and large surface area. Various characterization techniques tracking the products at different crystallization times revealed that the crystallization process consisted of three stages: short induction stage (0–6 h), rapid growth stage (6–18 h), and stable growth stage (18–36 h). Moreover, the synthesized ZSM-5 crystals can be used as effective seed for producing the next generation of ZSM-5 zeolite. © 2018

Keyword:

Crystallization behavior; Natural minerals; Seed-assisted synthesis; Template-free; ZSM-5 zeolite

Community:

  • [ 1 ] [Yue, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 2 ] [Kang, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 3 ] [Bai, Y.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 4 ] [Gu, L.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 5 ] [Liu, H.]State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
  • [ 6 ] [Bao, J.]National Experimental Teaching Demonstrating Center, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 7 ] [Wang, T.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 8 ] [Yuan, P.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 9 ] [Zhu, H.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 10 ] [Bai, Z.]State Key Laboratory of Photocatalysis on Energy & Environment, Fuzhou University, Fuzhou, 350116, China
  • [ 11 ] [Bao, X.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
  • [ 12 ] [Bao, X.]State Key Laboratory of Photocatalysis on Energy & Environment, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address:

  • [Zhu, H.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou UniversityChina

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Source :

Applied Clay Science

ISSN: 0169-1317

Year: 2018

Volume: 158

Page: 177-185

3 . 8 9

JCR@2018

5 . 3 0 0

JCR@2023

ESI HC Threshold:153

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 48

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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