Different morphologies of Cu2O materials were synthesized with a simple one-pot reaction by adding reductant into a Benedict mixing solution containing copper sulfate, sodium carbonate, and sodium citrate. Effects of reducing agent, dispersant, and temperature on material structures were investigated. Novel 'balsam pear' rod and star shapes of Cu2O were obtained at a reaction temperature of 70 °C when glucose was used as a reductant. The cubic shape of Cu2O was prepared at 25 °C with ascorbic acid as a reductant. Moreover, the size of the cube increased and the crystal faces sharpened when the temperature increased. The products were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The results showed uniform morphology of Cu2O in each condition. The synthesis method is simple, environmentally-friendly, and highly repeatable.
Bibliographical noteFunding Information:
This work was supported by the National Natural Science Foundation of China ( 21106051 , 51106061 , 21276101 ), the Foundation of Jiangsu Key Laboratory for Chemistry of Materials ( JSKC13132 ), the Program for Science and Technology Development of Huai’an ( HAG2013026 ), the Program for Excellent Youth of Jiangsu Qing-Lan Project and the Jiangsu Program for Production, Teaching and Research ( BK2015235 ).
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering