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Materials Research Innovations Volume 23, 2019 - Issue 5
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Research Article

Synthesis of ε-MnO2 in deep eutectic solvent for visible-light-driven photocatalytic activity

Xiaochen LaiSchool of Chemistry and Materials Science, Liaoning Shihua University, Fushun, People’s Republic of China
,
Yun ChengSchool of Environmental and Biological Engineering, Liaoning Shihua University, Fushun, People’s Republic of China
,
Chunyu HanSchool of Chemistry and Materials Science, Liaoning Shihua University, Fushun, People’s Republic of China
&
Genxiang LuoSchool of Chemistry and Materials Science, Liaoning Shihua University, Fushun, People’s Republic of ChinaCorrespondence[email protected]
Pages 305-309 | Received 25 Nov 2017, Accepted 03 May 2018, Published online: 09 May 2018
 
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Abstract

ε-MnO2 were synthesized through Mn2+/MnO4−reaction using a deep eutectic solvent (DES) of choline chloride-urea. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet spectroscopy (UV). Moreover, the as-synthesized MnO2 were employed into the photocatalytic degradation of rhodamine B(RhB) dye solution in the presence of H2O2 under visible light irradiation. As a result, the sample synthesized at 25 °C exhibited much higher photocatalytic activity for degradation of RhB.

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