Form of presentation | Articles in international journals and collections |
Year of publication | 2020 |
Язык | английский |
|
Antipin Igor Sergeevich, author
Gubaydullin Aydar Timergalievich, author
Morozova Yuliya Ernestovna, author
Ovsyannikov Aleksandr Sergeevich, author
Sayfina Alina Fuadovna, author
Shalaeva Yana Viktorovna, author
|
|
Kadirov Marsil Kakhirovich, author
Nizameev Irek Rashatovich, author
|
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Shumatbaeva Alina Marselovna, postgraduate kfu
|
Bibliographic description in the original language |
Shalaeva Ya.V., Photocatalytic properties of supramolecular nanoassociates based on gold and platinum nanoparticles, capped by amphiphilic calix[4]resorcinarenes, towards organic dyes. / Shalaeva Ya.V., Morozova Ju.E., Gubaidullin A.T., Saifina A.F., Shumatbaeva A.M., Nizameev I.R., Kadirov M.K., Ovsyannikov A.S., Antipin I.S. // Colloids Surf., A. - 2020.- Vol. 596. – 124700. DOI: 10.1016/j.colsurfa.2020.124700
|
Annotation |
The synthesis of colloidal platinum nanoparticles (PtNPs) (d core ≈1-40 nm) in an aqueous solution was carried out using amido(dimethyl)amino- and carboxy- calix[4]resorcinarenes with alkyl substituents on the lower rim as stabilizer. The nanoparticles were characterized by spectrophotometry, IR, TEM, DLS, PXRD and SAXS. It was shown that PtNPs and gold nanoparticles (AuNPs) obtained, stabilized by calix[4]resorcinarenes, demonstrate the photocatalytic activity in the photodegradation of methyl orange and rhodamine B toxic dyes under visible light irradiation. The rate constants of catalytic reaction (K 1 , min −1 ) and activity of nanocatalysts (K 2 , min −1 mol −1 ) were calculated. It was found that size of metal core, structure of macrocycle stabilizing the surface of metal nanoparticles, its ability to form self-associates and bind dye molecules define the rate of dye photodegradation reaction. The study of the interaction of PtNPs and AuNPs capped with amidoamine macrocycles with organic photolinkers by spectrophotometry and fluorescence showed the binding of photolinkers by macrocycles, PtNPs and AuNPs. The photocatalytic activity of obtained cooperative nanoassociates was studied. The addition of photolinkers leads to both an increase and a decrease in the reaction rate, depending on the
structure of linker and macrocycle. An increase in the reaction rate occurs due to the formation of photoactive supramolecular nanoassociates and the additional photosensitizing action of the photolinker on the surface of ametal nanoparticle. Such hybrid nanocatalysts based on metal nanoparticle and calixresorcinarenes have the potential to be used in the field of effective photodegradation of toxic water pollutants. |
Keywords |
Calix[4]resorcinarene, gold and platinum nanoparticles, dyes, photodegradation, photoactive organic linkers, supramolecular nanocatalyst |
The name of the journal |
Colloids and Surfaces A: Physicochemical and Engineering Aspects
|
URL |
https://www.sciencedirect.com/science/article/pii/S0927775720302934 |
Please use this ID to quote from or refer to the card |
https://repository.kpfu.ru/eng/?p_id=241497&p_lang=2 |
Full metadata record |
Field DC |
Value |
Language |
dc.contributor.author |
Antipin Igor Sergeevich |
ru_RU |
dc.contributor.author |
Gubaydullin Aydar Timergalievich |
ru_RU |
dc.contributor.author |
Morozova Yuliya Ernestovna |
ru_RU |
dc.contributor.author |
Ovsyannikov Aleksandr Sergeevich |
ru_RU |
dc.contributor.author |
Sayfina Alina Fuadovna |
ru_RU |
dc.contributor.author |
Shalaeva Yana Viktorovna |
ru_RU |
dc.contributor.author |
Kadirov Marsil Kakhirovich |
ru_RU |
dc.contributor.author |
Nizameev Irek Rashatovich |
ru_RU |
dc.contributor.author |
Shumatbaeva Alina Marselovna |
ru_RU |
dc.date.accessioned |
2020-01-01T00:00:00Z |
ru_RU |
dc.date.available |
2020-01-01T00:00:00Z |
ru_RU |
dc.date.issued |
2020 |
ru_RU |
dc.identifier.citation |
Shalaeva Ya.V., Photocatalytic properties of supramolecular nanoassociates based on gold and platinum nanoparticles, capped by amphiphilic calix[4]resorcinarenes, towards organic dyes. / Shalaeva Ya.V., Morozova Ju.E., Gubaidullin A.T., Saifina A.F., Shumatbaeva A.M., Nizameev I.R., Kadirov M.K., Ovsyannikov A.S., Antipin I.S. // Colloids Surf., A. - 2020.- Vol. 596. – 124700. DOI: 10.1016/j.colsurfa.2020.124700
|
ru_RU |
dc.identifier.uri |
https://repository.kpfu.ru/eng/?p_id=241497&p_lang=2 |
ru_RU |
dc.description.abstract |
Colloids and Surfaces A: Physicochemical and Engineering Aspects |
ru_RU |
dc.description.abstract |
The synthesis of colloidal platinum nanoparticles (PtNPs) (d core ≈1-40 nm) in an aqueous solution was carried out using amido(dimethyl)amino- and carboxy- calix[4]resorcinarenes with alkyl substituents on the lower rim as stabilizer. The nanoparticles were characterized by spectrophotometry, IR, TEM, DLS, PXRD and SAXS. It was shown that PtNPs and gold nanoparticles (AuNPs) obtained, stabilized by calix[4]resorcinarenes, demonstrate the photocatalytic activity in the photodegradation of methyl orange and rhodamine B toxic dyes under visible light irradiation. The rate constants of catalytic reaction (K 1 , min −1 ) and activity of nanocatalysts (K 2 , min −1 mol −1 ) were calculated. It was found that size of metal core, structure of macrocycle stabilizing the surface of metal nanoparticles, its ability to form self-associates and bind dye molecules define the rate of dye photodegradation reaction. The study of the interaction of PtNPs and AuNPs capped with amidoamine macrocycles with organic photolinkers by spectrophotometry and fluorescence showed the binding of photolinkers by macrocycles, PtNPs and AuNPs. The photocatalytic activity of obtained cooperative nanoassociates was studied. The addition of photolinkers leads to both an increase and a decrease in the reaction rate, depending on the
structure of linker and macrocycle. An increase in the reaction rate occurs due to the formation of photoactive supramolecular nanoassociates and the additional photosensitizing action of the photolinker on the surface of ametal nanoparticle. Such hybrid nanocatalysts based on metal nanoparticle and calixresorcinarenes have the potential to be used in the field of effective photodegradation of toxic water pollutants. |
ru_RU |
dc.language.iso |
ru |
ru_RU |
dc.subject |
Calix[4]resorcinarene |
ru_RU |
dc.subject |
gold and platinum nanoparticles |
ru_RU |
dc.subject |
dyes |
ru_RU |
dc.subject |
photodegradation |
ru_RU |
dc.subject |
photoactive organic linkers |
ru_RU |
dc.subject |
supramolecular nanocatalyst |
ru_RU |
dc.title |
Photocatalytic properties of supramolecular nanoassociates based on gold and platinum nanoparticles, capped by amphiphilic calix[4]resorcinarenes, towards organic dyes |
ru_RU |
dc.type |
Articles in international journals and collections |
ru_RU |
|