Issue 11, 2017, Issue in Progress
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RSC Advances

Fabrication of ZIF-9@super-macroporous microsphere for adsorptive removal of Congo red from water†

Juan Dai,a   Shangzhen Xiao,a   Jing Liu,a   Jing He,a   Jiandu Lei ORCID logo *b  and  Luying Wang*a  

* Corresponding authors

a Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, China
E-mail: wangly@bjfu.edu.cn

b MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing, China
E-mail: ljd2012@bjfu.edu.cn

Abstract

A novel composite adsorbent of ZIF-9 nanoparticles growing on super-macroporous microspheres (SMM) was synthesized via in situ growth method for adsorptive removal of Congo red from water. The as-synthesized ZIF-9@SMM adsorbent was characterized by XRD, SEM, and BET experiments, and the results showed the ZIF-9 nanoparticles can successfully grow on the surfaces of SMM giving the microspherical shape and microporous structure. The effects of different adsorbents, solution concentration, temperature, and pH value on the adsorption performance were investigated, and the adsorption isotherm and kinetics were analyzed through the adsorption results. The ZIF-9@SMM for removing Congo red from water exhibited better adsorption performance than the ZIF-9, SMM and some other adsorbents. The excellent adsorption performance of ZIF-9@SMM indicated that the fabrication of in situ growth method is attractive to be applied for other novel composite adsorbents combining microporous materials and macroporous microspheres.

Graphical abstract: Fabrication of ZIF-9@super-macroporous microsphere for adsorptive removal of Congo red from water

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Article information

DOI
https://doi.org/10.1039/C6RA26763G
Article type
Paper
Submitted
14 Nov 2016
Accepted
07 Jan 2017
First published
18 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 6288-6296

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Fabrication of ZIF-9@super-macroporous microsphere for adsorptive removal of Congo red from water

J. Dai, S. Xiao, J. Liu, J. He, J. Lei and L. Wang, RSC Adv., 2017, 7, 6288 DOI: 10.1039/C6RA26763G

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