Synthesis and Characterization of K2Ln2/3Ta2O7·nH2O (Ln= La, Pr, Nd), Layered Tantalates Photocatalysts for Water Splitting.

Authors

  • Hoover Valencia-Sanchez Escuela de Química, Universidad Tecnológica de Pereira, Carrera 27 10-02 Los Alamos, C. P. 660003, Pereira-Colombia, Tel. (+57)63137242

DOI:

https://doi.org/10.29356/jmcs.v59i2.21

Keywords:

Photocatalyst, Water Splitting, Ruddlesden-Popper, Hydrogen production

Abstract

Three compounds of the K2Ln2/3Ta2O7 (Ln = La, Nd, Pr) cation-deficient Ruddlesden-Popper series were prepared by the Pechini (polymeric complex) method. The crystal structures of the hydrated form of these compounds were determined by Rietveld analysis of the X-ray powder diffraction data and High Resolution Transmission Electron Microscopy (HRTEM). The samples were also analyzed to determine specific area (BET), degree of hydration (TGA), and photocatalytic activity for hydrogen evolution from water and aqueous methanol solution.

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Published

2017-10-12

Issue

Vol. 59 No. 2 (2015): Regular Issue

Section

Regular Articles

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