A Green Method to Prepare Composite of Graphene Oxide-Manganese Oxide using a Modified Hummer鈥檚 Method

阅读量:

19

作者:

MJ GrosM MasruriRT Tjahjanto

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摘要:

A composite graphene oxide-manganese oxide (GO-MnO) was facilely fabricated in one-step preparation by modified Hummer's method. The Hummer's method for graphene oxide preparation produced manganese residue as by product, therefore, we modified the Hummers method to convert the manganese residue into value-added materials with aqueous sodium hydroxide (NaOH). The number of Mn on composite and surface chemistry was investigated. GO-MnO was characterized by atomic absorption spectroscopy (AAS), UV-Visible spectrometer, fourier transform infrared (FT-IR), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Quantitative measurements showed that GO-MnO 1 and 2 have the number of Mn of 1.4231 and 2.0958 μg/g, respectively. FTIR showed the presence of functional groups such as hydroxyl, epoxy, carboxyl, carbonyl and manganese oxide. XRD confirmed the interlayer spacing of GO-MnO synthesized by our techniques is lower than GO-MnO produced by other processes. TEM showed that GO-MnO is single layer yet and Mn species was not homogeneously distributed on composite.

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DOI:

10.1088/1757-899X/833/1/012067

年份:

2020

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