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New photocatalysts based on mixed-metal pyridine dicarboxylates

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New photocatalytically active isostructural two-dimensional mixed metal-pyridine dicarboxylates, [M(H2O)3Co{C5N1H3(COO)2}3])], M = Gd (1), Dy (2) and Y (3) have been prepared under hydrothermal conditions. The structure consists of a network of MO6(H2O)3, CoO3N3 polyhedral units connected by the pyridine dicarboxylates forming two-dimensional layers, which are arranged in an AAAA... fashion. The photocatalytic studies on 13 indicate that they are active catalysts for the degradation of simple organic dyes, such as Remazol brilliant blue R (RBBR) and Orange G (OG) in the presence of UV light. The compounds have also been characterized by powder XRD, IR, TGA, UV-Vis and magnetic studies.

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Acknowledgments

S.N thanks the Department of Science and Technology (DST), Government of India, for the award of a research grant.

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Correspondence to Giridhar Madras or Srinivasan Natarajan.

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Mahata, P., Madras, G. & Natarajan, S. New photocatalysts based on mixed-metal pyridine dicarboxylates. Catal Lett 115, 27–32 (2007). https://doi.org/10.1007/s10562-007-9067-z

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