ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline

To overcome the limitations of large-scale applications for MOFs in the powder form, herein, we proposed a strategy of in-situ growth ZIF-8 onto polyaniline (PANI) modified coconut hydrogel (CCH). Firstly, PANI played the role of metal chelated layers, which were coated on CCH by in-situ polymerizat...

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Main Authors: Liu Qun, Zeng Fanming, Li Xiao, Su Zhongmin
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/45/e3sconf_iceeb2020_04055.pdf
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author Liu Qun
Zeng Fanming
Li Xiao
Su Zhongmin
author_facet Liu Qun
Zeng Fanming
Li Xiao
Su Zhongmin
author_sort Liu Qun
collection DOAJ
description To overcome the limitations of large-scale applications for MOFs in the powder form, herein, we proposed a strategy of in-situ growth ZIF-8 onto polyaniline (PANI) modified coconut hydrogel (CCH). Firstly, PANI played the role of metal chelated layers, which were coated on CCH by in-situ polymerization. Then, ZIF-8 nanocrystals were in-situ growth on the surface of the PANI coated CCH to synthesise the composite adsorbent ZIF-8/PANI/CCH. Finally, after vacuum freeze-dried, a white and well structured ZIF-8/PANI/CCA(ZIF-8/polyaniline/coconut aerogel) was obtained. The loading mass ratios of ZIF-8 on CCA and PANI/CCA were 11.3% and 37.5%, respectively, which indicates that PANI as interface layers can effectively promote the in-situ growth of ZIF-8. The obtained composite adsorbent (ZIF-8/PANI/CCA) was applied for the adsorption of tetracycline (TC),and the removal efficiency reaches over 91.6%. This strategy may provide an effective and versatile pathway to increase MOF loading mass on natural polysaccharide aerogel and sequentially branch out their applications in pollutant treatment fields.
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spelling doaj.art-cdf2fecc804e4f64ba117e5d3076eceb2022-12-21T21:33:07ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011850405510.1051/e3sconf/202018504055e3sconf_iceeb2020_04055ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracyclineLiu QunZeng FanmingLi XiaoSu ZhongminTo overcome the limitations of large-scale applications for MOFs in the powder form, herein, we proposed a strategy of in-situ growth ZIF-8 onto polyaniline (PANI) modified coconut hydrogel (CCH). Firstly, PANI played the role of metal chelated layers, which were coated on CCH by in-situ polymerization. Then, ZIF-8 nanocrystals were in-situ growth on the surface of the PANI coated CCH to synthesise the composite adsorbent ZIF-8/PANI/CCH. Finally, after vacuum freeze-dried, a white and well structured ZIF-8/PANI/CCA(ZIF-8/polyaniline/coconut aerogel) was obtained. The loading mass ratios of ZIF-8 on CCA and PANI/CCA were 11.3% and 37.5%, respectively, which indicates that PANI as interface layers can effectively promote the in-situ growth of ZIF-8. The obtained composite adsorbent (ZIF-8/PANI/CCA) was applied for the adsorption of tetracycline (TC),and the removal efficiency reaches over 91.6%. This strategy may provide an effective and versatile pathway to increase MOF loading mass on natural polysaccharide aerogel and sequentially branch out their applications in pollutant treatment fields.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/45/e3sconf_iceeb2020_04055.pdf
spellingShingle Liu Qun
Zeng Fanming
Li Xiao
Su Zhongmin
ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline
E3S Web of Conferences
title ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline
title_full ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline
title_fullStr ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline
title_full_unstemmed ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline
title_short ZIF-8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline
title_sort zif 8 and polyaniline modified coconut gel to fabricate composite aerogel for efficient removal of tetracycline
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/45/e3sconf_iceeb2020_04055.pdf
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AT lixiao zif8andpolyanilinemodifiedcoconutgeltofabricatecompositeaerogelforefficientremovaloftetracycline
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