Cu2O cubic and polyhedral structures versus commercial powder: shape effect on photocatalytic activity under visible light
Joint Authors
Santiago, Patricia
Luna, Ana L.
Herna´ndez, Fernando Plascencia-
Justin, Christophe Colbeau-
Rocha, Miguel Garcia
Aguilar, Guadalupe Valverde
Valenzuela, Miguel A.
Source
Journal of Saudi Chemical Society
Issue
Vol. 23, Issue 8 (31 Dec. 2019), pp.1016-1023, 8 p.
Publisher
Publication Date
2019-12-31
Country of Publication
Saudi Arabia
No. of Pages
8
Main Subjects
Abstract EN
A simple precipitation-reduction method was used to prepare cubic and polyhedral Cu2O structures.
Their morphological, structural, optical and electronic properties were analyzed and compared with those of commercial Cu2O by means of SEM, TEM, XRD, UV–vis DRS, Photoluminescence Spectroscopy and Time Resolved Microwave Conductivity.
Methyl orange (MO) photodegradation with visible light (blue-light LEDs, k = 450–470 nm) was taken as a model reaction to study the photocatalytic activity.
According to the results, Cu2O edge-and corner-truncated polyhedral particles significantly decreased the MO initial concentration by adsorption and photo catalysis, whereas, Cu2O cubic particles did not show MO adsorption but slightly higher photocatalytic activity than the polyhedral particles.
Commercial Cu2O showed MO adsorption and high electron mobility but it was completely inactive.
These results were explained in terms of the crystalline defects that influence both, the adsorption capacity and the photocatalytic activity.
American Psychological Association (APA)
Herna´ndez, Fernando Plascencia-& Luna, Ana L.& Justin, Christophe Colbeau-& Santiago, Patricia& Rocha, Miguel Garcia& Aguilar, Guadalupe Valverde…[et al.]. 2019. Cu2O cubic and polyhedral structures versus commercial powder: shape effect on photocatalytic activity under visible light. Journal of Saudi Chemical Society،Vol. 23, no. 8, pp.1016-1023.
https://search.emarefa.net/detail/BIM-1443183
Modern Language Association (MLA)
Herna´ndez, Fernando Plascencia-…[et al.]. Cu2O cubic and polyhedral structures versus commercial powder: shape effect on photocatalytic activity under visible light. Journal of Saudi Chemical Society Vol. 23, no. 8 (Dec. 2019), pp.1016-1023.
https://search.emarefa.net/detail/BIM-1443183
American Medical Association (AMA)
Herna´ndez, Fernando Plascencia-& Luna, Ana L.& Justin, Christophe Colbeau-& Santiago, Patricia& Rocha, Miguel Garcia& Aguilar, Guadalupe Valverde…[et al.]. Cu2O cubic and polyhedral structures versus commercial powder: shape effect on photocatalytic activity under visible light. Journal of Saudi Chemical Society. 2019. Vol. 23, no. 8, pp.1016-1023.
https://search.emarefa.net/detail/BIM-1443183
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 1023
Record ID
BIM-1443183