A novel ultralight three-dimensional house-of-cards titania monolith for extraordinary heavy-metal adsorption

Wenli Zhao; I. Wei Chen; Fangfang Xu; Fuqiang Huang

doi:10.1039/c7ta04142j

A novel ultralight three-dimensional house-of-cards titania monolith for extraordinary heavy-metal adsorption

Wenli Zhao, I. Wei Chen, Fangfang Xu^*, Fuqiang Huang

^*Corresponding author for this work

Physical Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Ultralight graphene foams have recently attracted attention due to their unique properties and applications, but few analogues of metal oxides possible to prepare. Here, a new monolith of three-dimensional titania has been prepared for the first time by a simple lyophilization treatment of exfoliated titanate nanosheets in colloidal suspension. The robust and shape-formable foam is of a density as low as 5 mg cm^-3. It possesses a porous layered architecture, large interlayer spacing, and large and negatively charged specific surface area, which exhibits excellent hygroscopicity and capacity for metal cation adsorption. In both mechanical compression and heavy metal ion absorption from water, it demonstrates remarkable recyclability and fast kinetics, capable of full recovery and repeated operation. Significantly outperforming all other inorganic sorbents, it may find applications in decontamination/enrichment/recovery of toxic, radioactive and valuable metal ions.

Original language	English (US)
Pages (from-to)	15724-15729
Number of pages	6
Journal	JOURNAL OF MATERIALS CHEMISTRY A
Volume	5
Issue number	30
DOIs	https://doi.org/10.1039/c7ta04142j
State	Published - 2017

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/c7ta04142j

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title = "A novel ultralight three-dimensional house-of-cards titania monolith for extraordinary heavy-metal adsorption",

abstract = "Ultralight graphene foams have recently attracted attention due to their unique properties and applications, but few analogues of metal oxides possible to prepare. Here, a new monolith of three-dimensional titania has been prepared for the first time by a simple lyophilization treatment of exfoliated titanate nanosheets in colloidal suspension. The robust and shape-formable foam is of a density as low as 5 mg cm-3. It possesses a porous layered architecture, large interlayer spacing, and large and negatively charged specific surface area, which exhibits excellent hygroscopicity and capacity for metal cation adsorption. In both mechanical compression and heavy metal ion absorption from water, it demonstrates remarkable recyclability and fast kinetics, capable of full recovery and repeated operation. Significantly outperforming all other inorganic sorbents, it may find applications in decontamination/enrichment/recovery of toxic, radioactive and valuable metal ions.",

author = "Wenli Zhao and Chen, {I. Wei} and Fangfang Xu and Fuqiang Huang",

note = "Funding Information: This work is financially supported by the National key research and development program (Grant no. 2016YFB0901600), National Natural Science Foundation of China (Grant no. 61376056 and 51502331), and Shanghai Technical Platform for Testing and Characterization on Inorganic Materials (14DZ2292900). Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

year = "2017",

doi = "10.1039/c7ta04142j",

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pages = "15724--15729",

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T1 - A novel ultralight three-dimensional house-of-cards titania monolith for extraordinary heavy-metal adsorption

AU - Zhao, Wenli

AU - Chen, I. Wei

AU - Xu, Fangfang

AU - Huang, Fuqiang

N1 - Funding Information: This work is financially supported by the National key research and development program (Grant no. 2016YFB0901600), National Natural Science Foundation of China (Grant no. 61376056 and 51502331), and Shanghai Technical Platform for Testing and Characterization on Inorganic Materials (14DZ2292900). Publisher Copyright: © 2017 The Royal Society of Chemistry.

PY - 2017

Y1 - 2017

N2 - Ultralight graphene foams have recently attracted attention due to their unique properties and applications, but few analogues of metal oxides possible to prepare. Here, a new monolith of three-dimensional titania has been prepared for the first time by a simple lyophilization treatment of exfoliated titanate nanosheets in colloidal suspension. The robust and shape-formable foam is of a density as low as 5 mg cm-3. It possesses a porous layered architecture, large interlayer spacing, and large and negatively charged specific surface area, which exhibits excellent hygroscopicity and capacity for metal cation adsorption. In both mechanical compression and heavy metal ion absorption from water, it demonstrates remarkable recyclability and fast kinetics, capable of full recovery and repeated operation. Significantly outperforming all other inorganic sorbents, it may find applications in decontamination/enrichment/recovery of toxic, radioactive and valuable metal ions.

AB - Ultralight graphene foams have recently attracted attention due to their unique properties and applications, but few analogues of metal oxides possible to prepare. Here, a new monolith of three-dimensional titania has been prepared for the first time by a simple lyophilization treatment of exfoliated titanate nanosheets in colloidal suspension. The robust and shape-formable foam is of a density as low as 5 mg cm-3. It possesses a porous layered architecture, large interlayer spacing, and large and negatively charged specific surface area, which exhibits excellent hygroscopicity and capacity for metal cation adsorption. In both mechanical compression and heavy metal ion absorption from water, it demonstrates remarkable recyclability and fast kinetics, capable of full recovery and repeated operation. Significantly outperforming all other inorganic sorbents, it may find applications in decontamination/enrichment/recovery of toxic, radioactive and valuable metal ions.

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U2 - 10.1039/c7ta04142j

DO - 10.1039/c7ta04142j

M3 - Article

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IS - 30

ER -

A novel ultralight three-dimensional house-of-cards titania monolith for extraordinary heavy-metal adsorption

Abstract

ASJC Scopus subject areas

UN SDGs

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