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Author:

Liu, L. (Liu, L..) | Li, J. (Li, J..) | Subhan, S. (Subhan, S..) | Yu, X. (Yu, X..) | Liu, Z. (Liu, Z..) | Chen, R. (Chen, R..) | Deng, J. (Deng, J..) | Ji, H. (Ji, H..) | Zhao, Z. (Zhao, Z..)

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Scopus SCIE

Abstract:

A major challenge in utilizing metal–organic frameworks (MOFs) for volatile organic compound (VOC) capture was their inclination for strong adsorption, which consequently impeded desorption and elevated energy demand. To overcome this challenge, the construction of HKUST-1@Cu nanofibers (HK@Cu-NF) with thermal conductive adsorption sites was proposed to synchronous enhance toluene adsorption and desorption efficiency for VOCs capture. In this work, Cu-based HKUST-1 was designed to grow on Cu nanofibers, and formed uniform coverage MOF layer with tight connection via homologous Cu self-transformation growth strategy. The synthesized composite was proved to maintain high surface area (1473 m2/g) and generate abundant unsaturated Cu sites on its nanointerface based from the thermally conductive Cu nanofibers. This unique connection structure endowed these adsorption sites with high affinity towards toluene and high thermal conductivity as well, and finally formed thermal conductive adsorption sites. As a result, HK@Cu-NF composite (80 % loading of HKUST-1) exhibited 1.9 times higher of toluene adsorption capacity at P/P0 = 0.002 and >3 times higher of thermal diffusivity than pure HKUST-1. Furthermore, it achieved enhancement in both adsorption and desorption efficiency for toluene, which reached 4.8 and 6.9 times of pure HKUST-1. Therefore, construction of thermal conductive adsorption sites successfully improved the adsorption efficiency and regeneration efficiency for VOCs capture, and realized the low energy VOCs desorption process. © 2024 Elsevier B.V.

Keyword:

Toluene adsorption/desorption Homologous Cu self-transformation growth Thermal conductive adsorption sites MOF composite nanofiber

Author Community:

  • [ 1 ] [Liu L.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured, Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
  • [ 2 ] [Li J.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured, Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
  • [ 3 ] [Subhan S.]Department of Chemistry, Bacha Khan University, KP, Charsadda, Pakistan
  • [ 4 ] [Yu X.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured, Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
  • [ 5 ] [Liu Z.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured, Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
  • [ 6 ] [Chen R.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured, Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
  • [ 7 ] [Deng J.]Department of Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China
  • [ 8 ] [Ji H.]College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
  • [ 9 ] [Zhao Z.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured, Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China
  • [ 10 ] [Zhao Z.]Key Laboratory of New Low-carbon Green Chemical Technology, Education Department of Guangxi Zhuang Autonomous Region, State Key Laboratory of Featured, Metal Materials and Life-cycle Safety for Composite Structures, School of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China

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Source :

Separation and Purification Technology

ISSN: 1383-5866

Year: 2024

Volume: 339

8 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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