Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres

© 2017 the Partner Organisations. Flower-like cobalt aluminum layered double hydroxide (CoAl-LDH) hollow microspheres were synthesized via a one-step solvothermal method without any template. An Ostwald ripening mechanism was proposed for the formation of hollow nanostructures. These flower-like CoA...

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Main Authors: Huang, P., Liu, Jian, Wei, F., Zhu, Y., Wang, X., Cao, C., Song, W.
Format: Journal Article
Published: CHINESE CHEMICAL SOC 2017
Online Access:http://hdl.handle.net/20.500.11937/71946
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author Huang, P.
Liu, Jian
Wei, F.
Zhu, Y.
Wang, X.
Cao, C.
Song, W.
author_facet Huang, P.
Liu, Jian
Wei, F.
Zhu, Y.
Wang, X.
Cao, C.
Song, W.
author_sort Huang, P.
building Curtin Institutional Repository
collection Online Access
description © 2017 the Partner Organisations. Flower-like cobalt aluminum layered double hydroxide (CoAl-LDH) hollow microspheres were synthesized via a one-step solvothermal method without any template. An Ostwald ripening mechanism was proposed for the formation of hollow nanostructures. These flower-like CoAl-LDH hollow microspheres had a high surface area and exhibited excellent selectivity for anionic dyes. The limited space between LDH layers offered size selectivity for adsorbate molecules. For the small molecule methyl orange, the maximum adsorption capacity reached 816.0 mg g-1 under ambient conditions, while for larger molecules such as Eosin B, the adsorption capacity was only 95.1 mg g-1. All these features make the flower-like CoAl-LDH hollow microspheres an excellent adsorbent in water remediation.
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institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T10:50:25Z
publishDate 2017
publisher CHINESE CHEMICAL SOC
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spelling curtin-20.500.11937-719462018-12-13T09:31:55Z Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres Huang, P. Liu, Jian Wei, F. Zhu, Y. Wang, X. Cao, C. Song, W. © 2017 the Partner Organisations. Flower-like cobalt aluminum layered double hydroxide (CoAl-LDH) hollow microspheres were synthesized via a one-step solvothermal method without any template. An Ostwald ripening mechanism was proposed for the formation of hollow nanostructures. These flower-like CoAl-LDH hollow microspheres had a high surface area and exhibited excellent selectivity for anionic dyes. The limited space between LDH layers offered size selectivity for adsorbate molecules. For the small molecule methyl orange, the maximum adsorption capacity reached 816.0 mg g-1 under ambient conditions, while for larger molecules such as Eosin B, the adsorption capacity was only 95.1 mg g-1. All these features make the flower-like CoAl-LDH hollow microspheres an excellent adsorbent in water remediation. 2017 Journal Article http://hdl.handle.net/20.500.11937/71946 10.1039/c7qm00079k CHINESE CHEMICAL SOC restricted
spellingShingle Huang, P.
Liu, Jian
Wei, F.
Zhu, Y.
Wang, X.
Cao, C.
Song, W.
Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres
title Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres
title_full Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres
title_fullStr Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres
title_full_unstemmed Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres
title_short Size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres
title_sort size-selective adsorption of anionic dyes induced by the layer space in layered double hydroxide hollow microspheres
url http://hdl.handle.net/20.500.11937/71946