Open AccessSynthesis and Characterization of CuO, TiO2, and CuO-TiO2Mixed Oxide by a Modified Oxalate Route
Author(s) -
Ekane Peter Etape,
Lambi John Ngolui,
Josepha Foba-Tendo,
Divine Mbom Yufanyi,
Beckley Victorine Namondo
Publication year - 2017
Publication title -
journal of applied chemistry
Language(s) - English
Resource type - Journals
eISSN - 2314-6923
pISSN - 2356-7171
DOI - 10.1155/2017/4518654
Subject(s) - oxalate , calcination , titanium oxide , copper , inorganic chemistry , copper oxide , photocatalysis , titanium , nuclear chemistry , oxide , materials science , aqueous solution , decomposition , thermal decomposition , precipitation , impurity , chemistry , catalysis , metallurgy , organic chemistry , physics , meteorology
Copper oxide (CuO), titanium oxide (TiO2), and Cu-doped TiO2 nanoparticles have been synthesized by pyrolysis of their corresponding precursors initially prepared by precipitation in aqueous solution using A. carambola fruit juice as a natural source of the precipitating agent (oxalate). The precursors were synthesized and characterized by FTIR, TGA, and PXRD. The results revealed that the precursors obtained were CuC2O4, TiO2(OH−)2C2O4, copper-doped titanium hydroxyl oxalate, and copper titanium hydroxyl oxalate. Complete decomposition for the as-prepared precursors containing titanium ions occurs at 600°C while impurity free copper oxalate decomposed at 450°C. The as-prepared precursors were decomposed and calcined at 600°C for 4 hours and the calcination products were characterized by XRD, SEM, and EDX. The results revealed the decomposition products to correspond to CuO, TiO2, Cu0.131Ti0.869O2, and CuO/TiO2
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