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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Enhancing Nb2O5 activity for CO2 photoreduction through Cu nanoparticles cocatalyst deposited by DC-magnetron sputtering

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Author(s):
Faria, Ana Luiza A. [1] ; Centurion, Higor A. [2] ; Torres, Juliana A. [3] ; Goncalves, V, Renato ; Ribeiro, Lucas S. [4] ; Riberio, Caue [3] ; da Cruz, Jean C. [4] ; Nogueira, Francisco G. E. [1]
Total Authors: 8
Affiliation:
[1] Univ Fed Sao Carlos, Grad Program Chem Engn, Rod Washington Luiz Km 235, BR-13565905 Sao Paulo, SP - Brazil
[2] V, Univ Sao Paulo, Sao Carlos Inst Phys, BR-13566590 Sao Carlos, SP - Brazil
[3] Embrapa Instrumentat, Rua 105 Novembro 1452, BR-13560970 Sao Carlos, SP - Brazil
[4] UFSCar Fed Univ Sao Carlos, Dept Chem, Interdisciplinary Lab Electrochem & Ceram LIEC, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: JOURNAL OF CO2 UTILIZATION; v. 53, NOV 2021.
Web of Science Citations: 0
Abstract

Herein we demonstrate that the deposition of a small loading of Cu nanoparticles (0.51 wt %) by DC-magnetron sputtering over niobium oxide (Nb2O5) increases its photocatalytic activity for the reduction of carbon dioxide (CO2) into methane (CH4), methanol (CH3OH), acetone (CH3COCH3), acetic acid (CH3COOH), isopropanol (CH3CH(OH)CH3) and formate (HCOO-). The improvement in the CO2 photoreduction of the Nb2O5/Cu can be attributed mainly to a reduction in the recombination rate of the electron-holes pairs photogenerated due to the electron trapping by Cu species as observed by the photoluminescence analysis, high dispersion of Cu, and high specific surface area of material even after addition Cu. (AU)

FAPESP's process: 16/21515-7 - Development of magnesium oxide with zinc and titanium heterostructure for application in artificial photosynthesis processes
Grantee:Juliana Arriel Torres
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 18/12871-0 - Modification of the temperature transition profile of thermosensitive nanocomposites
Grantee:Lucas da Silva Ribeiro
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 18/09723-9 - CO2 PHOTOCONVERSION IN PRODUCTS WITH VALUE-ADDED: EXPERIMENTAL AND THEORIC STUDIES
Grantee:Francisco Guilherme Esteves Nogueira
Support Opportunities: Regular Research Grants