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Photocatalytic degradation of microcystin-LR with a nanostructured photocatalyst based on upconversion nanoparticles@TiO₂ composite under simulated solar lights.

ABSTRACT: In this work, we prepared advanced upconversion nanoparticle coated with TiO₂ photocatalysts (NaYF₄:Yb,Tm@TiO₂) to utilize not only UV energy but also the large portion of NIR energy in order to improve the utilization efficiency of solar lights. The MC-LR (10 μg/mL) degradation rate can be approached 100% within 30 min at the concentration of NaYF₄:Yb,Tm@TiO₂ 0.4 mg/mL and initial pH value 4, while 61%, using pure TiO₂ (P25) under simulated solar lights. The reaction processes were studied and fitted with the pseudo-first-order kinetic model. Highly reactive hydroxyl radicals (•OH) were found to be the major reactive species. Meanwhile, seven degradation intermediates of MC-LR were examined by liquid chromatography/mass spe

SUBMITTER: Wu S

PROVIDER: S-EPMC5663843 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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Photocatalytic degradation of microcystin-LR with a nanostructured photocatalyst based on upconversion nanoparticles@TiO₂ composite under simulated solar lights.

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Photocatalytic degradation of microcystin-LR with a nanostructured photocatalyst based on upconversion nanoparticles@TiO2 composite under simulated solar lights.

OmicsDI is part of the ELIXIR infrastructure

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Photocatalytic degradation of microcystin-LR with a nanostructured photocatalyst based on upconversion nanoparticles@TiO₂ composite under simulated solar lights.