Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion
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Maria Bernardi
,
Vinícius Araújo
Abstract
Wurtzite-type Zn1−x MnxO (x = 0, 0.03, 0.05, 0.07) nanostructures were successfully synthesised using a simple microwave-assisted hydrothermal route and their catalytic properties were investigated in the cellulose conversion. The morphology of the nanocatalysts is dopant-dependent. Pure ZnO presented multi-plate morphology with a flower-like shape of nanometric sizes, while the Zn0.97Mn0.03O sample is formed by nanoplates with the presence of spherical nanoparticles; the Zn0.95Mn0.05O and Zn0.93Mn0.07O samples are mainly formed by nanorods with the presence of a small quantity of spherical nanoparticles. The catalyst without Mn did not show any catalytic activity in the cellulose conversion. The Mn doping promoted an increase in the density of weak acid sites which, according to the catalytic results, favoured promotion of the reaction.
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© 2013 Institute of Chemistry, Slovak Academy of Sciences
Artikel in diesem Heft
- Environmental catalysis — Topical issue
- Structured catalysts for methanol-to-olefins conversion: a review
- Diesel soot combustion catalysts: review of active phases
- State of the art in catalytic oxidation of chlorinated volatile organic compounds
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- Mesoporous phosphated and sulphated silica as solid acid catalysts for glycerol acetylation
- Valorisation of bio-oil resulting from fast pyrolysis of wood
- Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion
- Montmorillonite intercalated with SiO2, SiO2-Al2O3 or SiO2-TiO2 pillars by surfactant-directed method as catalytic supports for DeNOx process
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Artikel in diesem Heft
- Environmental catalysis — Topical issue
- Structured catalysts for methanol-to-olefins conversion: a review
- Diesel soot combustion catalysts: review of active phases
- State of the art in catalytic oxidation of chlorinated volatile organic compounds
- Effect of zinc introduction on catalytic performance of ZSM-5 in conversion of methanol to light olefins
- Mesoporous phosphated and sulphated silica as solid acid catalysts for glycerol acetylation
- Valorisation of bio-oil resulting from fast pyrolysis of wood
- Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion
- Montmorillonite intercalated with SiO2, SiO2-Al2O3 or SiO2-TiO2 pillars by surfactant-directed method as catalytic supports for DeNOx process
- Fe- and Cu-oxides supported on γ-Al2O3 as catalysts for the selective catalytic reduction of NO with ethanol. Part I: catalyst preparation, characterization, and activity
- Characterization of LaRhO3 perovskites for dry (CO2) reforming of methane (DRM)
- Visible light photoelectrocatalytic degradation of rhodamine B using a dye-sensitised TiO2 electrode
- CdS/TiO2 composite films for methylene blue photodecomposition under visible light irradiation and non-photocorrosion of cadmium sulfide
- Photocatalytic air-cleaning using TiO2 nanoparticles in porous silica substrate
- Cost-effectiveness analysis to assess commercial TiO2 photocatalysts for acetaldehyde degradation in air
- Solid waste decontamination by thermal desorption and catalytic oxidation methods
