Temperature-induced formation of cellulose nanofiber film with remarkably high gas separation performance

Xiong Fei Zhang; Yi Feng; Chaobo Huang; Yichang Pan; Jianfeng Yao

doi:10.1007/s10570-017-1529-x

Temperature-induced formation of cellulose nanofiber film with remarkably high gas separation performance

Xiong Fei Zhang, Yi Feng, Chaobo Huang, Yichang Pan, Jianfeng Yao

COLLEGE OF CHEMICAL ENGINEERING

Nanjing Forestry University

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

36 Scopus citations

Abstract

Free-standing cellulose nanofiber (CNF) films were prepared by a specially designed oven-drying approach. For the first time, the evaporation rate was carefully controlled to enhance the gas separation performance of the CNF film with the highest H₂/N₂ and H₂/O₂ selectivities of 159.4 and 218.2, respectively. The dense structure formed by the CNFs and the intra- and inter-fibrillar hydrogen bonds are believed to contribute to the separation property. Particularly, the specific role of floating-shape film precursor formed at the rapid evaporation stage (stage I) and the mechanism for film formation were investigated. This study demonstrated that the evaporation rate controlled by the heating temperature exhibited significant influence on surface, uniformity and gas separation of the CNF films.

Original language	English
Pages (from-to)	5649-5656
Number of pages	8
Journal	Cellulose
Volume	24
Issue number	12
DOIs	https://doi.org/10.1007/s10570-017-1529-x
State	Published - 1 Dec 2017

Keywords

Cellulose nanofiber membrane
H separation
Mechanism
O barrier

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10.1007/s10570-017-1529-x

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title = "Temperature-induced formation of cellulose nanofiber film with remarkably high gas separation performance",

abstract = "Free-standing cellulose nanofiber (CNF) films were prepared by a specially designed oven-drying approach. For the first time, the evaporation rate was carefully controlled to enhance the gas separation performance of the CNF film with the highest H2/N2 and H2/O2 selectivities of 159.4 and 218.2, respectively. The dense structure formed by the CNFs and the intra- and inter-fibrillar hydrogen bonds are believed to contribute to the separation property. Particularly, the specific role of floating-shape film precursor formed at the rapid evaporation stage (stage I) and the mechanism for film formation were investigated. This study demonstrated that the evaporation rate controlled by the heating temperature exhibited significant influence on surface, uniformity and gas separation of the CNF films.",

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T1 - Temperature-induced formation of cellulose nanofiber film with remarkably high gas separation performance

AU - Zhang, Xiong Fei

AU - Feng, Yi

AU - Huang, Chaobo

AU - Pan, Yichang

AU - Yao, Jianfeng

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Free-standing cellulose nanofiber (CNF) films were prepared by a specially designed oven-drying approach. For the first time, the evaporation rate was carefully controlled to enhance the gas separation performance of the CNF film with the highest H2/N2 and H2/O2 selectivities of 159.4 and 218.2, respectively. The dense structure formed by the CNFs and the intra- and inter-fibrillar hydrogen bonds are believed to contribute to the separation property. Particularly, the specific role of floating-shape film precursor formed at the rapid evaporation stage (stage I) and the mechanism for film formation were investigated. This study demonstrated that the evaporation rate controlled by the heating temperature exhibited significant influence on surface, uniformity and gas separation of the CNF films.

AB - Free-standing cellulose nanofiber (CNF) films were prepared by a specially designed oven-drying approach. For the first time, the evaporation rate was carefully controlled to enhance the gas separation performance of the CNF film with the highest H2/N2 and H2/O2 selectivities of 159.4 and 218.2, respectively. The dense structure formed by the CNFs and the intra- and inter-fibrillar hydrogen bonds are believed to contribute to the separation property. Particularly, the specific role of floating-shape film precursor formed at the rapid evaporation stage (stage I) and the mechanism for film formation were investigated. This study demonstrated that the evaporation rate controlled by the heating temperature exhibited significant influence on surface, uniformity and gas separation of the CNF films.

KW - Cellulose nanofiber membrane

KW - H separation

KW - Mechanism

KW - O barrier

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Temperature-induced formation of cellulose nanofiber film with remarkably high gas separation performance

Abstract

Keywords

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