Decolorization of Rhodamine B dye by using multiwalled carbon nanotubes/Co–Ti oxides nanocomposite and Co–Ti oxides as photocatalysts
| Autor: | Idrees A. Khan, Noor Zada, Khalid Saeed |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Rhodamine B Oxide Nanoparticle 02 engineering and technology Multiwalled carbon nanotubes 010501 environmental sciences 01 natural sciences Catalysis chemistry.chemical_compound lcsh:Water supply for domestic and industrial purposes Photodegradation Cobolt Bimetallic strip 0105 earth and related environmental sciences Water Science and Technology Bimetallic nanoparticles Titanium lcsh:TD201-500 Nanocomposite 021001 nanoscience & nanotechnology chemistry Chemical engineering Photocatalysis 0210 nano-technology |
| Zdroj: | Applied Water Science, Vol 10, Iss 1, Pp 1-10 (2019) |
| ISSN: | 2190-5495 2190-5487 |
| Popis: | Functionalized multiwalled carbon nanotubes (F-MWCNTs)/Co–Ti oxide nanocomposites and neat Co–Ti oxide nanoparticles were synthesized by chemical reduction method. The scanning electron microscopy micrographs show that the bimetallic NPs in F-MWCNTs/Co–Ti are present in dispersed form while the neat Co–Ti nanoparticles were found in agglomerated form. The formation of nanocomposites and neat Co–Ti nanoparticles was also confirmed by energy-dispersive X-ray. Both types of nanocomposites were employed as photocatalyst for the photodegradation of Rhodamine B in aqueous medium under UV light irradiation. The photodegradation study was performed via UV–Vis spectrophotometer. The photodegradation results show that F-MWCNTs/Co–Ti oxide NPs degraded about 93.35% dye within 150 min irradiation time while the neat Co–Ti oxide NPs degraded about 91.76% dye within same irradiation time. The F-MWCNTs/Co–Ti can be easily removed and recycled due to its bulky composite nature as compared to neat Co–Ti oxide NPs. The effect of dye concentration, catalyst dosage, pH of medium and activity of recycled catalyst was also evaluated. |
| Databáze: | OpenAIRE |
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