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Issue 4, 2015
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Synthesis of robust hierarchically porous zirconium phosphate monolith for efficient ion adsorption

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Abstract

Hierarchically porous monolithic materials are advantageous as adsorbents, catalysts and catalyst supports due to the better accessibility of reactants to the active sites and the ease of recycle and reuse. Traditional synthetic routes, however, have limitations in designing hierarchical porosity as well as the mechanically stable monolithic shape in inorganic phosphate materials, which are useful as adsorbents and catalysts. We present a low-temperature, one-step liquid phase synthesis of hierarchically porous zirconium phosphate (ZrP) monoliths with tunable compositions (from Zr(HPO4)2 (Zr : P = 1 : 2) to NaSICON (Na super ionic conductor)-type ZrP (Zr : P = 1 : 1.5)) as well as macropore size (from 0.5 to 5 μm). The as-synthesized ZrP monolith with a high reactive surface area (600 m2 g−1) and relatively high mechanical strength (Young's modulus 320 MPa) was applied to ion adsorption. A simple syringe device inserted tightly with the ZrP monolith as a continuous flow setup was demonstrated to remove various toxic metal ions in aqueous solutions, which shows promising results for water purification.

Graphical abstract: Synthesis of robust hierarchically porous zirconium phosphate monolith for efficient ion adsorption

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Publication details

The article was received on 07 Oct 2014, accepted on 19 Nov 2014 and first published on 20 Nov 2014


Article type: Paper
DOI: 10.1039/C4NJ01749H
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Citation: New J. Chem., 2015,39, 2444-2450
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    Synthesis of robust hierarchically porous zirconium phosphate monolith for efficient ion adsorption

    Y. Zhu, T. Shimizu, T. Kitajima, K. Morisato, N. Moitra, N. Brun, T. Kiyomura, K. Kanamori, K. Takeda, H. Kurata, M. Tafu and K. Nakanishi, New J. Chem., 2015, 39, 2444
    DOI: 10.1039/C4NJ01749H

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