1. Ktisis Cyprus University of Technology

Journals Inorganic Chemistry Frontiers

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Journal description

Name
Inorganic Chemistry Frontiers
Subjects
Photochemical Activity
Nanoparticles
ISSN
2052-1553
Description
The rational design of semiconductor nanostructures is of utmost importance for efficient solar energy conversion and environmental remediation. In this article, we report high-surface-area mesoporous networks consisting of Ni-implanted cubic CoO (Co 1-x Ni x O) nanoparticles as promising catalysts for the detoxification of aqueous Cr(vi) solutions. Mechanistic studies with X-ray photoelectron, UV-vis optical absorption, fluorescence and electrochemical impedance spectroscopy and theoretical (DFT) calculations indicate that the performance enhancement of these catalysts arises from the high charge transfer kinetics and oxidation efficiency of surface-reaching holes. By tuning the chemical composition, the Co 1-x Ni x O mesoporous catalyst at 2 atomic% Ni content imparts outstanding photocatalytic Cr(vi) reduction and water oxidation activity, corresponding to an apparent quantum yield (QY) of 1.5% at λ = 375 nm irradiation light.
Impact Factor (2 years)
5.934
Publisher
Royal Society of Chemistry
Journal Webpage
Journal type
Hybrid Journal

Journals Publications
(All)


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Issue DateTitleAuthor(s)
17-Dec-2020Surface defect engineering of mesoporous Cu/ZnS nanocrystal-linked networks for improved visible-light photocatalytic hydrogen productionDaskalakis, Ioannis ; Vamvasakis, Ioannis ; Papadas, Ioannis T. ; Tsatsos, Sotirios ; Choulis, Stelios A. ; Kennou, Stella ; Armatas, Gerasimos S. 
21-Mar-2019Boosting photochemical activity by Ni doping of mesoporous CoO nanoparticle assembliesVelegraki, Georgia ; Vamvasakis, Ioannis ; Papadas, Ioannis T. ; Tsatsos, Sotiris ; Pournara, Anastasia ; Manos, Manolis J. ; Choulis, Stelios A. ; Kennou, Stella ; Kopidakis, Georgios ; Armatas, Gerasimos S.