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International Journal of Chemical Reactor Engineering

Ed. by de Lasa, Hugo / Xu, Charles Chunbao

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1542-6580
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Volume 9, Issue 1

Issues

Volume 9 (2011)

Volume 8 (2010)

Volume 7 (2009)

Volume 6 (2008)

Volume 5 (2007)

Volume 4 (2006)

Volume 3 (2005)

Volume 2 (2004)

Volume 1 (2002)

Facile Preparation of P-25 Films Dip-Coated Nickel Foam and High Photocatalytic Activity for the Degradation of Quinoline and Industrial Wastewater

Suiyi Zhu / Xia Yang / Gu-Ning Wang / Lei-Lei Zhang / He-Feng Zhu / Ming-Xin Huo
Published Online: 2011-05-11 | DOI: https://doi.org/10.1515/1542-6580.2605

A kind of P-25 TiO2 films coated nickel foam was synthesized by a facile dip-coating/calcination route, and used to fabricate a continuous-flow three-phase photocatalytic reactor. The morphology, crystal phase structure, surface composition and specific surface area of P-25 films coated nickel foam were investigated by field emission scanning electron microscope (FE-SEM), X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS) and nitrogen adsorption-desorption measurements, respectively. The results indicated that the coated/ calcined P-25 films had the porous surface structure fabricated by nano-sized titanium dioxide consisted of two crystal phases and incorporated with a NiO interlayer. The increase of P-25 contents enhanced the specific surface area; however, 20 percent of initial P-25 sol would result in visible large cracks because of too high P-25 content and consequently cause the peeling of films. The photocatalytic activities of nickel foam with different coating amounts of P-25 for the degradation of quinoline aqueous solutions were investigated with a continuous-flow three-phase photocatalytic reactor based on the P-25 films coated nickel foam. The results suggested that nickel foam coated with 10 percent of P-25 sol had an optimal photocatalytic activity for the degradation of quinoline aqueous solutions. The continuous-flow three-phase photocatalytic reactor fabricated with P-25 films coated nickel foam with an optimal P-25 coating amount shows high photocatalytic activity and stability for the degradation of quinoline aqueous solutions and industrial wastewater. The treated industrial wastewater meets the international discharge standard.

Keywords: dip-coating; nickel foam; photocatalysis; quinoline; titanium dioxide

About the article

Published Online: 2011-05-11


Citation Information: International Journal of Chemical Reactor Engineering, Volume 9, Issue 1, ISSN (Online) 1542-6580, DOI: https://doi.org/10.1515/1542-6580.2605.

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