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Issue 36, 2012
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Microwave-assisted hydrothermal synthesis of perovskite NaTaO3 nanocrystals and their photocatalytic properties

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Abstract

A fast and facile process for the preparation of perovskite NaTaO3 nanocrystals with Ta2O5 and NaOH as starting materials by a microwave-assisted hydrothermal (MHT) technique is reported. By pretreating the Ta2O5 powder by ball milling, pure-phase NaTaO3 can be synthesized under quite mild conditions through the formation of an intermediate pyrochlore Na2Ta2O6 phase, while much longer times are required in a conventional hydrothermal (CHT) process. After loading with NiO co-catalyst, the NaTaO3 nanocrystals prepared by the MHT method showed photocatalytic activity for overall water splitting more than two times greater than those prepared under CHT conditions.

Graphical abstract: Microwave-assisted hydrothermal synthesis of perovskite NaTaO3 nanocrystals and their photocatalytic properties

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Publication details

The article was received on 30 May 2012, accepted on 26 Jun 2012 and first published on 04 Jul 2012


Article type: Paper
DOI: 10.1039/C2JM33470D
Citation: J. Mater. Chem., 2012,22, 18808-18813
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    Microwave-assisted hydrothermal synthesis of perovskite NaTaO3 nanocrystals and their photocatalytic properties

    J. Shi, G. Liu, N. Wang and C. Li, J. Mater. Chem., 2012, 22, 18808
    DOI: 10.1039/C2JM33470D

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