Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 8, Issue 3, Pages 1523-1527Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2008.036
Keywords
copper sulfide; solvothermal; composition; morphology; growth; optical property
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The present work reports the effect of reaction time on solvothermal synthesis of copper sulfides from CuCl2 center dot 2H(2)O and thiourea with various compositions and morphologies using ethylenediamine as solvent at 120 degrees C. X-ray diffraction patterns of the products at different durations shows the development of different stoichiometric composition of copper sulfides in where Cu:S ratio increases from 1.39 to 1.79 indicating transformation of Cu(39)to Cu7S4. As inferred by EDX and XPS studies of the final products. SEM shows the growth of bundles of nanorods of length approximate to 1 mu m and diameter in nanometer range are observed after 6 h. On increasing the reaction duration to 9 h, nanorods tends to combines with each other and growth occurs in six directions and after 12 h leads to the formation of flower-like morphology of copper sulfide. The optical properties of these products also have been studied.
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