Preparation, characterization of a ceria loaded carbon nanotubes nanocomposites photocatalyst and degradation of azo dye Acid Orange 7

• Autorzy: Wen T. , Tang Y.-B. , Mo B.-Y.

Identyfikatory

DOI

10.1515/aep-2016-0015

• Języki publikacji: EN

Abstrakty

EN

A ceria loaded carbon nanotubes (CeO₂/CNTs) nanocomposites photocatalyst was prepared by chemical precipitation, and the preparation conditions were optimized using an orthogonal experiment method. HR-TEM, XRD, UV-Vis/DRS, TGA and XPS were used to characterize the photocatalyst. Nitrogen adsorption-desorption was employed to determine the BET specifi c surface area. The results indicated that the photocatalyst has no obvious impurities. CeO₂ was dispersed on the carbon nanotubes with a good loading effect and high loading effi ciency without agglomeration. The catalyst exhibits a strong ability to absorb light in the ultraviolet region and some ability to absorb light in the visible light region. The CeO₂/CNTs nanocomposites photocatalyst was used to degrade azo dye Acid Orange 7 (40 mg/L). The optical decolorization rate was 66.58% after xenon lamp irradiation for 4 h, which is better than that of commercial CeO₂ (43.13%). The results suggested that CeO₂ loading on CNTs not only enhanced the optical decolorization rate but also accelerated the separation of CeO₂/CNTs and water.

Słowa kluczowe

EN

carbon nanotube; ceria; nanocomposites photocatalyst; preparation; acid orange 7

• Wydawca: Institute of Environmental Engineering, Polish Academy of Sciences
• Czasopismo: Archives of Environmental Protection
• Rocznik: 2016
• Tom: Vol. 42, no. 2
• Strony: 12--19
• Opis fizyczny: Bibliogr.38 poz., rys., tab., wykr.

Twórcy

autor

Wen T.

• Jiangsu University of Science and Technology, China School of Environmental and Chemical Engineering

autor

Tang Y.-B.

• Jiangsu University of Science and Technology, China School of Environmental and Chemical Engineering

autor

Mo B.-Y.

• Jiangsu University of Science and Technology, China School of Environmental and Chemical Engineering

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.