Sol–gel synthesis of SnO2–MgO nanoparticles and their photocatalytic activity towards methylene blue degradation

Sol–gel synthesis of SnO2–MgO nanoparticles and their photocatalytic activity towards methylene blue degradation:

Highlights

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A simple sol–gel method for the synthesis of SnO₂–MgO nanoparticles is reported.

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Band gap of SnO₂ can be tuned by varying the magnesium content in SnO₂–MgO.

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SnO₂–MgO shows good photocatalytic activity towards degradation of methylene blue.

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Influence of In doping on the structural, photo-luminescence and alcohol response characteristics of the SnO2 nanoparticles

Influence of In doping on the structural, photo-luminescence and alcohol response characteristics of the SnO2 nanoparticles:

Highlights

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In-doped SnO₂ samples show smaller crystallinity with crystallite size: ∼7–9 nm.

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EDX analyses confirm the incorporation of indium ions in the SnO₂ lattice.

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Raman spectra are consistent with the results of XRD and SAED pattern.

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Alcohol response has been found to increase with the indium dopant concentration.

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3 at% In-doped sample exhibits maximum response (96.5%) to propan-2-ol at 250 °C.

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