Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane

doi:10.1016/j.cjche.2020.05.023

中国化学工程学报 ›› 2021, Vol. 29 ›› Issue (1): 103-109.DOI: 10.1016/j.cjche.2020.05.023

• Separation Science and Engineering • 上一篇下一篇

Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane

Xiujuan Li, Le Chen, Dandan Zhu, Song Yang, Zhong Wu, Mingyang He, Zhihui Zhang, Qun Chen

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China

收稿日期:2020-03-08 修回日期:2020-05-10 出版日期:2021-01-28 发布日期:2021-04-02
通讯作者: Le Chen, Zhihui Zhang
基金资助:
This research was supported by the National Natural Science Foundation of China (Nos. 11775037 and 21676030), the Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology (BM212110), and The Postgraduate Innovation Project of Changzhou University (KYCX19_1782).

Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane

Xiujuan Li, Le Chen, Dandan Zhu, Song Yang, Zhong Wu, Mingyang He, Zhihui Zhang, Qun Chen

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China

Received:2020-03-08 Revised:2020-05-10 Online:2021-01-28 Published:2021-04-02
Contact: Le Chen, Zhihui Zhang
Supported by:
This research was supported by the National Natural Science Foundation of China (Nos. 11775037 and 21676030), the Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology (BM212110), and The Postgraduate Innovation Project of Changzhou University (KYCX19_1782).

摘要/Abstract

摘要： A novel ZIF-8-CMC hybrid material was fabricated from the hybridization of ZIF-8 and carboxymethylcellulose (CMC) by impregnation method for n-hexane/3-methylpentane separation. The surface properties of ZIF-8 were tailored by introducing CMC into ZIF-8 nanoparticles. In this work, adsorption separation of n-hexane (nHEX) and 3-methylpentane (3MP) on ZIF-8-CMC were investigated by batch vapor-phase adsorption and liquid-phase breakthrough adsorption. The adsorption selectivity of nHEX/3MP reversed from preferable adsorption of nHEX to preferable adsorption of 3MP upon the increasing of CMC containing in the hybrid materials. As the temperature increases, the adsorption amounts of nHEX and 3MP decrease. With the increasing of CMC contents, the nHEX uptake decreased, the uptake capacity of 3MP increased gradually. For liquid-phase breakthrough adsorption, the dynamic adsorption capacity of nHEX also decreased with the increasing of temperature.

关键词: Zeolitic imidazolate frameworks, Carboxymethylcellulose (CMC), n-Hexane, Adsorption separation

Abstract: A novel ZIF-8-CMC hybrid material was fabricated from the hybridization of ZIF-8 and carboxymethylcellulose (CMC) by impregnation method for n-hexane/3-methylpentane separation. The surface properties of ZIF-8 were tailored by introducing CMC into ZIF-8 nanoparticles. In this work, adsorption separation of n-hexane (nHEX) and 3-methylpentane (3MP) on ZIF-8-CMC were investigated by batch vapor-phase adsorption and liquid-phase breakthrough adsorption. The adsorption selectivity of nHEX/3MP reversed from preferable adsorption of nHEX to preferable adsorption of 3MP upon the increasing of CMC containing in the hybrid materials. As the temperature increases, the adsorption amounts of nHEX and 3MP decrease. With the increasing of CMC contents, the nHEX uptake decreased, the uptake capacity of 3MP increased gradually. For liquid-phase breakthrough adsorption, the dynamic adsorption capacity of nHEX also decreased with the increasing of temperature.

Key words: Zeolitic imidazolate frameworks, Carboxymethylcellulose (CMC), n-Hexane, Adsorption separation

Xiujuan Li, Le Chen, Dandan Zhu, Song Yang, Zhong Wu, Mingyang He, Zhihui Zhang, Qun Chen. Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane[J]. 中国化学工程学报, 2021, 29(1): 103-109.

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Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane

Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane

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