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Published on: February 11, 2016
Photocatalytic removal of microcystin-LR by advanced WO3-based nanoparticles under simulated solar light
Chao Zhao1, Dawei Li2, Yonggang Liu3
1Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Japan ; School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China.
Abstract:
A series of advanced WO3-based photocatalysts including CuO/WO3, Pd/WO3, and Pt/WO3 were synthesized for the photocatalytic removal of microcystin-LR (MC-LR) under simulated solar light. In the present study, Pt/WO3 exhibited the best performance for the photocatalytic degradation of MC-LR. The MC-LR degradation can be described by pseudo-first-order kinetic model. Chloride ion (Cl-) with proper concentration could enhance the MC-LR degradation. The presence of metal cations (Cu2+ and Fe3+) improved the photocatalytic degradation of MC-LR. This study suggests that Pt/WO3 photocatalytic oxidation under solar light is a promising option for the purification of water containing MC-LR.
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