Photocatalytic Activities of HZSM-5 Supported TiO2 in Different Electrolyte Solutions

Wen Jie Zhang; Ke Xin Li; Hong Bo He

doi:10.4028/www.scientific.net/AMR.424-425.621

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 424-425Photocatalytic Activities of HZSM-5 Supported TiO2...

Photocatalytic Activities of HZSM-5 Supported TiO₂ in Different Electrolyte Solutions

Abstract:

Zeolite HZSM-5 was pre-treated by oxalic acid and used as support for TiO₂ prepared by sol-gel method. Photocatalytic activities of the supported TiO₂ on HZSM-5 were investigated with existence of three kinds of electrolytes, ie. NaCl, NaHCO₃ and NH₄C. The use of these electrolytes encountered very similar influences on adsorption and photocatalytic degradation on HZSM-5 supported TiO₂. Methyl orange total decoloration and photocatalytic degradation rates increased with electrolyte concentration when the concentration was lower than 0.1 mol/l. Adsorption of methyl orange of the photocatalyst went up constantly as electrolyte concentration rising from 0 to 1.0 mol/l. Photocatalytic degradation efficiencies undertook a slowly decrease at a long range of electrolyte concentration.

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Periodical:

Advanced Materials Research (Volumes 424-425)

Pages:

621-624

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.424-425.621

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Online since:

January 2012

Authors:

Wen Jie Zhang, Ke Xin Li, Hong Bo He

Keywords:

HZSM-5, Oxalic Acid, Photocatalysis, TiO₂

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