Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor

[Image: see text] The K and Sr cations (K(+) and Sr(2+)) in a Sr(2)KTa(5)O(15) photocatalyst were found to be easily substituted by Na cations (Na(+)) to form Sr(x)K(y)Na(z)Ta(5)O(15) by a facile one-pot flux method using a mixture of potassium chloride (KCl) and sodium chloride (NaCl). Sr(x)K(y)Na(...

Descripción completa

Detalles Bibliográficos
Autores principales: Huang, Zeai, Yoshizawa, Sumika, Teramura, Kentaro, Asakura, Hiroyuki, Hosokawa, Saburo, Tanaka, Tsunehiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2017
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645129/
https://www.ncbi.nlm.nih.gov/pubmed/31457362
http://dx.doi.org/10.1021/acsomega.7b01305
_version_ 1783437397106622464
author Huang, Zeai
Yoshizawa, Sumika
Teramura, Kentaro
Asakura, Hiroyuki
Hosokawa, Saburo
Tanaka, Tsunehiro
author_facet Huang, Zeai
Yoshizawa, Sumika
Teramura, Kentaro
Asakura, Hiroyuki
Hosokawa, Saburo
Tanaka, Tsunehiro
author_sort Huang, Zeai
collection PubMed
description [Image: see text] The K and Sr cations (K(+) and Sr(2+)) in a Sr(2)KTa(5)O(15) photocatalyst were found to be easily substituted by Na cations (Na(+)) to form Sr(x)K(y)Na(z)Ta(5)O(15) by a facile one-pot flux method using a mixture of potassium chloride (KCl) and sodium chloride (NaCl). Sr(x)K(y)Na(z)Ta(5)O(15) fabricated using a mixture of KCl and NaCl with a Ag cocatalyst showed enhanced photocatalytic activity without apparent change in selectivity toward CO for the photocatalytic conversion of CO(2) using H(2)O. The present study demonstrates that the flux treatment significantly affected the phase, morphology, band gap, and surface Sr composition of the catalyst owing to the substitution of K(+) and Sr(2+) for Na(+). The stability and durability of the catalyst were also enhanced as compared to those of the photocatalyst fabricated using only KCl flux due to more stable Ag on the surface of Sr(x)K(y)Na(z)Ta(5)O(15).
format Online
Article
Text
id pubmed-6645129
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher American Chemical Society
record_format MEDLINE/PubMed
spelling pubmed-66451292019-08-27 Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor Huang, Zeai Yoshizawa, Sumika Teramura, Kentaro Asakura, Hiroyuki Hosokawa, Saburo Tanaka, Tsunehiro ACS Omega [Image: see text] The K and Sr cations (K(+) and Sr(2+)) in a Sr(2)KTa(5)O(15) photocatalyst were found to be easily substituted by Na cations (Na(+)) to form Sr(x)K(y)Na(z)Ta(5)O(15) by a facile one-pot flux method using a mixture of potassium chloride (KCl) and sodium chloride (NaCl). Sr(x)K(y)Na(z)Ta(5)O(15) fabricated using a mixture of KCl and NaCl with a Ag cocatalyst showed enhanced photocatalytic activity without apparent change in selectivity toward CO for the photocatalytic conversion of CO(2) using H(2)O. The present study demonstrates that the flux treatment significantly affected the phase, morphology, band gap, and surface Sr composition of the catalyst owing to the substitution of K(+) and Sr(2+) for Na(+). The stability and durability of the catalyst were also enhanced as compared to those of the photocatalyst fabricated using only KCl flux due to more stable Ag on the surface of Sr(x)K(y)Na(z)Ta(5)O(15). American Chemical Society 2017-11-20 /pmc/articles/PMC6645129/ /pubmed/31457362 http://dx.doi.org/10.1021/acsomega.7b01305 Text en Copyright © 2017 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Huang, Zeai
Yoshizawa, Sumika
Teramura, Kentaro
Asakura, Hiroyuki
Hosokawa, Saburo
Tanaka, Tsunehiro
Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor
title Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor
title_full Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor
title_fullStr Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor
title_full_unstemmed Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor
title_short Sodium Cation Substitution in Sr(2)KTa(5)O(15) toward Enhancement of Photocatalytic Conversion of CO(2) Using H(2)O as an Electron Donor
title_sort sodium cation substitution in sr(2)kta(5)o(15) toward enhancement of photocatalytic conversion of co(2) using h(2)o as an electron donor
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645129/
https://www.ncbi.nlm.nih.gov/pubmed/31457362
http://dx.doi.org/10.1021/acsomega.7b01305
work_keys_str_mv AT huangzeai sodiumcationsubstitutioninsr2kta5o15towardenhancementofphotocatalyticconversionofco2usingh2oasanelectrondonor
AT yoshizawasumika sodiumcationsubstitutioninsr2kta5o15towardenhancementofphotocatalyticconversionofco2usingh2oasanelectrondonor
AT teramurakentaro sodiumcationsubstitutioninsr2kta5o15towardenhancementofphotocatalyticconversionofco2usingh2oasanelectrondonor
AT asakurahiroyuki sodiumcationsubstitutioninsr2kta5o15towardenhancementofphotocatalyticconversionofco2usingh2oasanelectrondonor
AT hosokawasaburo sodiumcationsubstitutioninsr2kta5o15towardenhancementofphotocatalyticconversionofco2usingh2oasanelectrondonor
AT tanakatsunehiro sodiumcationsubstitutioninsr2kta5o15towardenhancementofphotocatalyticconversionofco2usingh2oasanelectrondonor

Ejemplares similares