Synthesis of high-performance zeolite t membrane in fluoride media

Fei Zhang; Yi Hong Zheng; Tian Gui; Hua Mei Wang; Na Hu; Rong Fei Zhou; Xiang Shu Chen

doi:10.11862/CJIC.2014.270

Synthesis of high-performance zeolite t membrane in fluoride media

Fei Zhang, Yi Hong Zheng, Tian Gui, Hua Mei Wang, Na Hu, Rong Fei Zhou, Xiang Shu Chen

Jiangxi Normal University

Research output: Contribution to journal › Article › peer-review

Abstract

Oriented zeolite T membranes with high pervaporation performance were synthesized on seeded porous mullite supports in fluoride media. Zeolite powders and membranes were characterized by means of XRD, SEM and MAS NMR. The influences of synthesis conditions such as additive, n_NaF/n_KF ratio, synthesis temperature and time on membrane growth and separation properties were investigated. Fast crystallization mechanism of zeolite T layers in fluoride media was also suggested. The addition of alkali metal fluorides promoted the crystallization of supported zeolite T layers and affected the morphology of crystals. Fluoride-derived zeolite T membranes under optimized synthesis conditions had an average flux of (4.91 ±0.18) kg · m⁻² · h⁻¹ and an average separation factor of 7 060±1 130 for a 10:90 (w/w) of water/i-propanol mixture at 348 K.

Original language	English
Pages (from-to)	1845-1854
Number of pages	10
Journal	Chinese Journal of Inorganic Chemistry
Volume	30
Issue number	8
DOIs	https://doi.org/10.11862/CJIC.2014.270
State	Published - 1 Aug 2014
Externally published	Yes

Keywords

Fluoride salts
Mullite support
Pervaporation
Zeolite T membrane

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10.11862/CJIC.2014.270

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title = "Synthesis of high-performance zeolite t membrane in fluoride media",

abstract = "Oriented zeolite T membranes with high pervaporation performance were synthesized on seeded porous mullite supports in fluoride media. Zeolite powders and membranes were characterized by means of XRD, SEM and MAS NMR. The influences of synthesis conditions such as additive, nNaF/nKF ratio, synthesis temperature and time on membrane growth and separation properties were investigated. Fast crystallization mechanism of zeolite T layers in fluoride media was also suggested. The addition of alkali metal fluorides promoted the crystallization of supported zeolite T layers and affected the morphology of crystals. Fluoride-derived zeolite T membranes under optimized synthesis conditions had an average flux of (4.91 ±0.18) kg · m−2 · h−1 and an average separation factor of 7 060±1 130 for a 10:90 (w/w) of water/i-propanol mixture at 348 K.",

keywords = "Fluoride salts, Mullite support, Pervaporation, Zeolite T membrane",

author = "Fei Zhang and Zheng, {Yi Hong} and Tian Gui and Wang, {Hua Mei} and Na Hu and Zhou, {Rong Fei} and Chen, {Xiang Shu}",

year = "2014",

month = aug,

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doi = "10.11862/CJIC.2014.270",

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TY - JOUR

T1 - Synthesis of high-performance zeolite t membrane in fluoride media

AU - Zhang, Fei

AU - Zheng, Yi Hong

AU - Gui, Tian

AU - Wang, Hua Mei

AU - Hu, Na

AU - Zhou, Rong Fei

AU - Chen, Xiang Shu

PY - 2014/8/1

Y1 - 2014/8/1

N2 - Oriented zeolite T membranes with high pervaporation performance were synthesized on seeded porous mullite supports in fluoride media. Zeolite powders and membranes were characterized by means of XRD, SEM and MAS NMR. The influences of synthesis conditions such as additive, nNaF/nKF ratio, synthesis temperature and time on membrane growth and separation properties were investigated. Fast crystallization mechanism of zeolite T layers in fluoride media was also suggested. The addition of alkali metal fluorides promoted the crystallization of supported zeolite T layers and affected the morphology of crystals. Fluoride-derived zeolite T membranes under optimized synthesis conditions had an average flux of (4.91 ±0.18) kg · m−2 · h−1 and an average separation factor of 7 060±1 130 for a 10:90 (w/w) of water/i-propanol mixture at 348 K.

AB - Oriented zeolite T membranes with high pervaporation performance were synthesized on seeded porous mullite supports in fluoride media. Zeolite powders and membranes were characterized by means of XRD, SEM and MAS NMR. The influences of synthesis conditions such as additive, nNaF/nKF ratio, synthesis temperature and time on membrane growth and separation properties were investigated. Fast crystallization mechanism of zeolite T layers in fluoride media was also suggested. The addition of alkali metal fluorides promoted the crystallization of supported zeolite T layers and affected the morphology of crystals. Fluoride-derived zeolite T membranes under optimized synthesis conditions had an average flux of (4.91 ±0.18) kg · m−2 · h−1 and an average separation factor of 7 060±1 130 for a 10:90 (w/w) of water/i-propanol mixture at 348 K.

KW - Fluoride salts

KW - Mullite support

KW - Pervaporation

KW - Zeolite T membrane

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U2 - 10.11862/CJIC.2014.270

DO - 10.11862/CJIC.2014.270

M3 - 文章

AN - SCOPUS:84907057032

SN - 1001-4861

VL - 30

SP - 1845

EP - 1854

JO - Chinese Journal of Inorganic Chemistry

JF - Chinese Journal of Inorganic Chemistry

IS - 8

ER -

Synthesis of high-performance zeolite t membrane in fluoride media

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Keywords

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