Synthesis and catalytic application of Pd/PdO/Fe3O4@polymer-like graphene quantum dots |
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Authors: | Sajjad Keshipour Amal Al-Azmi |
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Institution: | 1. Department of Nanochemistry, Nanotechnology Research Center, Urmia University, Urmia, Iran;2. Chemistry Department, Kuwait University, P. O. Box 5969, Safat, 13060 Kuwait |
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Abstract: | A novel approach was achieved for growing citric acid towards polymer-like graphene quantum dots (PGQD) with high efficiency in the presence of sodium hydroxide as a base catalyst. This protocol is completely safe, simple, fast, and efficient by a bottom up strategy. Thermal treatment of a mixture containing citric acid with NaOH at 300 °C gave PGQD during 5 min. The reaction afforded a new heterogeneous catalyst, Pd/PdO/Fe3O4@PGQD, in the presence of Pd and Fe3O4. The magnetically recoverable catalyst showed high activity in the oxidation of alkylarenes and alcohols using H2O2 as a green oxidant at room temperature. Comparison of the results with previous reports showed the efficiency of the catalyst to have high turnover numbers in mild reaction conditions. |
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Keywords: | citric acid fast synthesis graphene oxidation Pd catalysis poly graphene quantum dot |
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