Preparation of Zn1–xMnxO nanoparticles by a simple “green” method and photocatalytic activity under visible light irradiation
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und
Abstract
A simple “green” method was applied for preparation of Zn1 –xMnxO nanoparticles (x = 0, 0.025, 0.05, 0.075, 0.15 and 0.20) in water by refluxing for 2 h at about 90 °C. This method is mild and highly efficient involving no templates, surfactants or additives; therefore, it is very promising for low-cost and large-scale production. Powder X-ray diffraction patterns demonstrate that the nanoparticles have the same crystal structure, and loading of Mn2+ ions does not change the structure of ZnO. Scanning electron microscopy images show that the nanoparticles are mainly spherical. UV-Vis diffuse reflectance spectra of the samples demonstrate increasing visible light absorption with mole fraction of Mn2+ ions. Photocatalytic degradation of methylene blue on the nanoparticles was evaluated under visible light irradiation. Among the prepared nanoparticles, Zn0.95Mn0.05O has the highest photocatalytic activity. Moreover, effects of refluxing time and calcination temperature on photocatalytic activity were investigated.
References
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© 2011, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Changes in the Editorial Office of IJMR
- Original Contributions
- Influence of the nature of an electric field applied during the solution heat treatment of the Al-Mg-Si-Cu Alloy AA6111 on subsequent natural aging
- Isothermal dynamic thermal diffusivity studies of the reduction of NiO and NiWO4 precursors by hydrogen
- Heating rate effects on reverse martensitic transformation in a Cu – Zn – Al shape memory alloy
- Effect of Ce content on the microstructure of semisolid Mg-10Al alloy
- Dielectric properties of low-temperature sintered Ba(Fe0.5Nb0.5)O3 with BaCu(B2O5) addition
- Recovery stress and shape memory stability in Ni–Ti–Cu thin wires at high temperatures
- Microstructure and mechanical properties of WC-Ni-Al based cemented carbides developed for engineering applications
- Microstructure of austenitic stainless steels of various phase stabilities after cyclic and tensile deformation
- High temperature workability behaviour of a modified P92 steel
- Influence of mineralized collagen fibrils on the thermo-sensitivity of an injectable scaffold for bone regeneration
- Low temperature synthesis of CuGeO3 nanoflowers from n-heptane solvent
- Preparation of Zn1–xMnxO nanoparticles by a simple “green” method and photocatalytic activity under visible light irradiation
- Surface morphology, electrical and optical properties n-type doped MOCVD grown GaSb using dimethyltellurium
- The role of polymethylhydrosiloxane in the sol-gel synthesis of high surface area porous silicon carbide
- Synthesis, characterization and dehydration–rehydration study of sol-gel derived hydroxide hydrogel of the MgO–ZrO2 system
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Changes in the Editorial Office of IJMR
- Original Contributions
- Influence of the nature of an electric field applied during the solution heat treatment of the Al-Mg-Si-Cu Alloy AA6111 on subsequent natural aging
- Isothermal dynamic thermal diffusivity studies of the reduction of NiO and NiWO4 precursors by hydrogen
- Heating rate effects on reverse martensitic transformation in a Cu – Zn – Al shape memory alloy
- Effect of Ce content on the microstructure of semisolid Mg-10Al alloy
- Dielectric properties of low-temperature sintered Ba(Fe0.5Nb0.5)O3 with BaCu(B2O5) addition
- Recovery stress and shape memory stability in Ni–Ti–Cu thin wires at high temperatures
- Microstructure and mechanical properties of WC-Ni-Al based cemented carbides developed for engineering applications
- Microstructure of austenitic stainless steels of various phase stabilities after cyclic and tensile deformation
- High temperature workability behaviour of a modified P92 steel
- Influence of mineralized collagen fibrils on the thermo-sensitivity of an injectable scaffold for bone regeneration
- Low temperature synthesis of CuGeO3 nanoflowers from n-heptane solvent
- Preparation of Zn1–xMnxO nanoparticles by a simple “green” method and photocatalytic activity under visible light irradiation
- Surface morphology, electrical and optical properties n-type doped MOCVD grown GaSb using dimethyltellurium
- The role of polymethylhydrosiloxane in the sol-gel synthesis of high surface area porous silicon carbide
- Synthesis, characterization and dehydration–rehydration study of sol-gel derived hydroxide hydrogel of the MgO–ZrO2 system
- DGM News
- DGM News