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Optimization of the Preparation Process of Nano-TiO2/Micro-Cu Composite Particles

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Abstract:

Nano-TiO2/micro-Cu composite particles were prepared by hydrolysis of Ti(OBu)4 in abundant acidic aqueous solution and subsequent reflux in the presence of micron size Cu powders. The preparation process was optimized using response surface design with the degradation of TiO2/Cu particles to Methyl orange as target. The particle morphology and composition were characterized by FE-SEM, XPS and XRD. The photon absorption properties of composite particles was investigated by the UV-VIS DRS experiments, and the results show the photoabsorption property of composite particles is intermediate between TiO2 particles and Cu powders, showing cooperative effect by the combination of oxide semiconductor particles with metal substrate.

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Periodical:

Advanced Materials Research (Volumes 105-106)

Pages:

492-494

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.105-106.492

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Online since:

April 2010

Authors:

Bin Wang, Hai Ping Cui, Jun Yan, Shi Guo Du

Keywords:

Composite Particle, Micron Size Cu Powder, Photocatalytic, TiO2 Nanoparticle

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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