Limits...
Photocatalytic removal of microcystin-LR by advanced WO3-based nanoparticles under simulated solar light.

Zhao C, Li D, Liu Y, Feng C, Zhang Z, Sugiura N, Yang Y - ScientificWorldJournal (2015)

Bottom Line: In the present study, Pt/WO3 exhibited the best performance for the photocatalytic degradation of MC-LR.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.

View Article: PubMed Central - PubMed

Affiliation: Graduate 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.

No MeSH data available.


SEM images of WO3 and modified WO3 samples: (a) CuO/WO3, (b) Pd/WO3, (c) Pt/WO3, and (d) pure WO3.
© Copyright Policy - open-access
Related In: Results  -  Collection


getmorefigures.php?uid=PMC4390111&req=5

fig2: SEM images of WO3 and modified WO3 samples: (a) CuO/WO3, (b) Pd/WO3, (c) Pt/WO3, and (d) pure WO3.

Mentions: The morphology and microstructure of the developed photocatalysts were analyzed by scanning electron microscopy (SEM) (Figure 2). The SEM images of pure and modified WO3 photocatalysts showed that they are composed of particles with size ranging from 100 to 200 nm. The specific surface area of the pure WO3 was about 5 m2 g−1 which is in agreement with other reports [22]. The specific surface area of modified WO3 photocatalysts (CuO/WO3, Pd/WO3, and Pt/WO3) was slightly increased to 6.0, 6.5, and 7.0 m2 g−1, respectively, due to the metals loading and a grind of WO3 powders in the preparation process.


Photocatalytic removal of microcystin-LR by advanced WO3-based nanoparticles under simulated solar light.

Zhao C, Li D, Liu Y, Feng C, Zhang Z, Sugiura N, Yang Y - ScientificWorldJournal (2015)

SEM images of WO3 and modified WO3 samples: (a) CuO/WO3, (b) Pd/WO3, (c) Pt/WO3, and (d) pure WO3.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4390111&req=5

fig2: SEM images of WO3 and modified WO3 samples: (a) CuO/WO3, (b) Pd/WO3, (c) Pt/WO3, and (d) pure WO3.
Mentions: The morphology and microstructure of the developed photocatalysts were analyzed by scanning electron microscopy (SEM) (Figure 2). The SEM images of pure and modified WO3 photocatalysts showed that they are composed of particles with size ranging from 100 to 200 nm. The specific surface area of the pure WO3 was about 5 m2 g−1 which is in agreement with other reports [22]. The specific surface area of modified WO3 photocatalysts (CuO/WO3, Pd/WO3, and Pt/WO3) was slightly increased to 6.0, 6.5, and 7.0 m2 g−1, respectively, due to the metals loading and a grind of WO3 powders in the preparation process.

Bottom Line: In the present study, Pt/WO3 exhibited the best performance for the photocatalytic degradation of MC-LR.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.

View Article: PubMed Central - PubMed

Affiliation: Graduate 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.

No MeSH data available.