Acid–base and photocatalytic properties of TiO-based nanomaterials
Applied Nanoscience (Switzerland), ISSN: 2190-5517, Vol: 12, Issue: 3, Page: 691-700
2022
- 9Citations
- 14Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
The acid–base properties and photocatalytic activity for the degradation of Congo Red and methylene blue of TiO-based nanomaterials (commercial TiO, sulfonated TiO (TiO-S) and nanocomposites TiO and TiO-S with carbon nanotubes) have been studied. The results indicated the important role of the acid–base properties of catalysts for influencing on the efficacy of photocatalytic processes. A correlation between the photocatalytic activity and the strength of the acid sites of the catalysts has been observed for the photodegradation of methylene blue. Sulphur-free samples (TiO P25 and TiO-MWCNT), which are superior in acid strength then sulphur-containing catalysts, shown higher activity (99–100%) for methylene blue photodegradation. Sulphur-containing (TiO-S and TiO-S-MWCNT) nanocomposites with a bifunctional acid–base nature were the most effective photocatalysts in a Congo Red photodegradation process. This was due to the presence of both acid and base functional groups in Congo Red dye. The obtained results suggested the crucial role of methylene blue and Congo Red adsorption on the surface of photocatalysts as an important stage for the effective organic dyes photodegradation.
Bibliographic Details
Springer Science and Business Media LLC
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