Add time:07/26/2019         Source:sciencedirect.com

Sodium hydroxide modified graphene oxide was used as manganese oxide support for the preparation of three nanocomposite catalysts via an one-pot preparation route, for the degradation of an endocrine disruptor, bisphenol-A. The nanocomposites were characterized for their structure by X-ray diffraction, for their morphology with scanning electron microscopy and for their surface chemistry with Fourier transform infrared spectroscopy, potentiometric titration and thermal analysis measurements. The nanocomposites prepared showed to possess high catalytic activity for the degradation/oxidation of bisphenol-A at ambient conditions, without light irradiation and/or the addition of oxidants, which was higher than that of the pure manganese oxides and can be attributed to the synergistic effect of the manganese oxide and the modified graphene oxide. The increase degradation of bisphenol-A presented by the nanocomposite with the higher manganese percentage could be attributed to the different manganese oxide phase formed.

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