Citation: SHI Shuyun, REN Baixing. Photocatalytic Degradation of Methylene Blue Wastewater by Novel Polyoxometalates Salt[J]. Chinese Journal of Applied Chemistry, ;2016, 33(5): 577-582. doi: 10.11944/j.issn.1000-0518.2016.05.150296 shu

Photocatalytic Degradation of Methylene Blue Wastewater by Novel Polyoxometalates Salt

SHI Shuyun ,
REN Baixing ^,

1.
College of Environmental Science and Engineering, Jilin Normal University, Siping, Jilin 136000, China

Corresponding author: REN Baixing,
Received Date: 17 August 2015
Available Online: 23 December 2015
Fund Project:

[PMo₈V₆O₄₂][Co(Phen)₂][Him]₂·2H₃O·3H₂O(1) was prepared by hydrothermal synthesis method and characterized by means of IR, Raman, UV, XRD and XPS. Its photocatalytic performance toward degradation of methylene blue wastewater was investigated. Under the optimized conditions, i.e., catalyst dosage of 50 mg/L, 4 mg/L methylene blue at pH=1 and the reaction time 220 min, 99.2% of the methylene blue is degraded photocatalytically. The kinetics of the photodegradation of methylene blue is satisfied by the pseudo-first-order equation, with a constant at 0.0144 min^-1, and fitting coefficient of 0.9918. The photocatalyst also exhibits good reusability. The degradation rate for methylene blue still keeps at 92.4% after 4 recycles.
- hydrothermal,
- polyoxometalate salt,
- methylene blue,
- photocatalysis,
- degradation
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沈阳化工大学材料科学与工程学院沈阳 110142