Ru/CdS Quantum Dots Templated on Clay Nanotubes as Visible-Light-Active Photocatalysts: Optimization of S/Cd Ratio and Ru Content | Sciact - CRIS-system of Boreskov Institute of Catalysis

Ru/CdS Quantum Dots Templated on Clay Nanotubes as Visible-Light-Active Photocatalysts: Optimization of S/Cd Ratio and Ru Content Full article

Journal

Chemistry - A European Journal
ISSN: 0947-6539 , E-ISSN: 1521-3765

Output data

Year: 2020, Volume: 26, Number: 57, Pages: 13085-13092 Pages count : 8 DOI: 10.1002/chem.202002192

Tags

cadmium sulfide; clays; nanostructures; photochemistry; quantum dots

Authors

Stavitskaya Anna V. ¹ , Kozlova Ekaterina A. ^2,3 , Kurenkova Anna Yu. ² , Glotov Aleksandr P. ¹ , Selischev Dmitry S. ² , Ivanov Evgenii V. ¹ , Kozlov Denis V. ² , Vinokurov Vladimir A. ¹ , Fakhrullin Rawil F. ^1,4 , Lvov Yuri M. ⁵

Affiliations

1	Department of physical and colloid chemistry, Gubkin University, Moscow, Russia, 119991
2	Department of photocatalysis, Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russian Federation, 630090
3	Novosibirsk State University, Novosibirsk, Russian Federation, 630090
4	Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Republic of Tatarstan, Russian Federation, 420000
5	Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, USA, 71272

Funding (1)

Government of the Russian Federation

14.Z50.31.0035

Nanoarchitectual approach based on in situ quantum dots formation within/outside clay nanotubes was developed. The efficient and stable photocatalysts active under visible light were achieved with ruthenium doped cadmium sulfide quantum dots templated on the surface of azine modified halloysite nanotubes. The catalytic activity was tested in hydrogen evolution reaction from water solution of electrolytes under visible light. Ru doping enhanced the photocatalytic activity of CdS quantum dots thanks to better light adsorption and electron-hole pair separation due to formation of metal-semiconductor heterojunction. We found that sulfur to cadmium ratio (S/Cd) was the major factor for stable nanoparticles formation on the surface of the azine modified clay. The quantum yield of 9.3 % was reached using Ru/CdS/Halloysite containing 5.2 wt. % of Cd doped with 0.1 wt. % of Ru and S/Cd ratio equaling one. CdS/Halloysite hybrid in vivo and in vitro studies demonstrated an absence of toxic effect in eukaryotic cells and nematodes in short term tests, thus providing promising photosensitive materials for multiple applications.

Stavitskaya A.V. , Kozlova E.A. , Kurenkova A.Y. , Glotov A.P. , Selischev D.S. , Ivanov E.V. , Kozlov D.V. , Vinokurov V.A. , Fakhrullin R.F. , Lvov Y.M.
Ru/CdS Quantum Dots Templated on Clay Nanotubes as Visible-Light-Active Photocatalysts: Optimization of S/Cd Ratio and Ru Content
Chemistry - A European Journal. 2020. V.26. N57. P.13085-13092. DOI: 10.1002/chem.202002192 WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	May 3, 2020
Accepted:	Jul 8, 2020
Published online:	Sep 21, 2020
Published print:	Oct 9, 2020

Web of science:	WOS:000571432400001
Scopus:	2-s2.0-85091199642
Elibrary:	45347247
Chemical Abstracts:	2020:1894803
PMID:	32640117
OpenAlex:	W3040793047

DB	Citing
Scopus	47
Web of science	45
Elibrary	50
OpenAlex	50