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has been cited by the following article:

• TITLE: Kinetics Study on Photocatalytic Degradation of Methyl Orange Catalyzed by Sea Urchin-Like Cu2O

  AUTHORS: R. J. Gao, T. Ding, X. J. Duan

  KEYWORDS: Cuprous Oxide, Sea Urchin-Like, Photo-Catalyst, Reaction Kinetic, Methyl Orange

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.4 No.6, May 26, 2016

  ABSTRACT: Sea urchin-like cuprous oxide with hollow glass microsphere as core was prepared using sodium sulfite as the reducing agent and sodium acetate-acetic acid as buffer solution in copper sulfate solution. Methyl orange was selected as degradation target for photocatalytic experiments. The photocatalytic activities were investigated by visible spectro- photometer. Photocatalytic kinetics parameters were studied by the Langmuir-Hinshelwood model and Arrhenius formula. It was observed that the sea urchin-like morphology dramatically improved the photocatalytic activity of cuprous oxide. The photo-degradation belongs to the first-order reaction and the maximum degradation rate could reach 94.37%. The activation energy and pre-exponential factor are 41.18 KJ·mol-1 and 1.07 × 106, respectively. After seven times recycling, the sample still showed high photo-catalytic efficiency and stability.