Catalytic Ozonation of Rhodamine B over CuO Catalyst Confined in Multiwalled Carbon Nanotubes: An Experimental and Theoretical Account.

In this study, we combine magnetic solid phase extraction (MSPE), with the screen-printed carbon electrode (SPCE) modified by a molecular imprinted polymer (MIP) for sensitive and selective extraction and electrochemical determination of Rhodamine B in food samples. A magnetic solid phase extraction (MSPE) was carried out using magnetic poly(styrene-co-divinylbenzene) (PS-DVB) and magnetic nanoparticles (MNPs) synthetized on the surface of multiwalled carbon nanotubes (MWCNTs). An MIP was prepared on the surface of MWCNTs in the presence of titanium oxide nanoparticles (TiO2NPs) modifying the SPCE for the rapid electrochemical detection of Rhodamine B. The MIPs synthesis was optimized by varying the activated titanium oxide (TiO2) and multiwalled carbon nanotubes (MWCNTs) amounts. The MSPE and electrochemical detection conditions were optimized as well. The present method exhibited good selectivity, high sensitivity, and good reproducibility towards the determination of Rhodamine B, making it a suitable method for the determination of Rhodamine B in food samples.

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Simultaneous determination of 2,4,6-trichlorophenol and pentachlorophenol based on poly(Rhodamine B)/graphene oxide/multiwalled carbon nanotubes composite film modified electrode

Applied Surface Science ◽

10.1016/j.apsusc.2015.11.154 ◽

2016 ◽

Vol 361 ◽

pp. 72-79 ◽

Cited By ~ 15

Author(s):

Xiaolin Zhu ◽

Kexin Zhang ◽

Nan Lu ◽

Xing Yuan

Keyword(s):

Carbon Nanotubes ◽

Graphene Oxide ◽

Composite Film ◽

Simultaneous Determination ◽

Multiwalled Carbon Nanotubes ◽

Modified Electrode ◽

Rhodamine B ◽

Multiwalled Carbon

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The role of multiwalled carbon nanotubes (MWCNTs) in the catalytic ozonation of atrazine

Chemical Engineering Journal ◽

10.1016/j.cej.2013.12.023 ◽

2014 ◽

Vol 241 ◽

pp. 66-76 ◽

Cited By ~ 46

Author(s):

Xiaolei Fan ◽

João Restivo ◽

José J.M. Órfão ◽

Manuel Fernando R. Pereira ◽

Alexei A. Lapkin

Keyword(s):

Carbon Nanotubes ◽

Multiwalled Carbon Nanotubes ◽

Catalytic Ozonation ◽

Multiwalled Carbon

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Decolorization of Rhodamine B dye by using multiwalled carbon nanotubes/Co–Ti oxides nanocomposite and Co–Ti oxides as photocatalysts

Applied Water Science ◽

10.1007/s13201-019-1124-4 ◽

2019 ◽

Vol 10 (1) ◽

Cited By ~ 4

Author(s):

Noor Zada ◽

Khalid Saeed ◽

Idrees Khan

Keyword(s):

Carbon Nanotubes ◽

Multiwalled Carbon Nanotubes ◽

Rhodamine B ◽

Uv Light ◽

Irradiation Time ◽

Chemical Reduction ◽

Multiwalled Carbon ◽

Ti Oxides ◽

Functionalized Multiwalled Carbon Nanotubes ◽

Composite Nature

AbstractFunctionalized 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.

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