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Highly Selective Photocatalytic CO(2) Reduction to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles under Visible-Light Irradiation
[Image: see text] The ultimate goal of photocatalytic CO(2) reduction is to achieve high selectivity for a single product with high efficiency. One of the most significant challenges is that expensive catalysts prepared through complex processes are usually used. Herein, gram-scale cubic silicon car...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7877699/ https://www.ncbi.nlm.nih.gov/pubmed/33480244 http://dx.doi.org/10.1021/acsami.0c19945 |
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author | Li, Hao Sun, Jianwu |
author_facet | Li, Hao Sun, Jianwu |
author_sort | Li, Hao |
collection | PubMed |
description | [Image: see text] The ultimate goal of photocatalytic CO(2) reduction is to achieve high selectivity for a single product with high efficiency. One of the most significant challenges is that expensive catalysts prepared through complex processes are usually used. Herein, gram-scale cubic silicon carbide (3C-SiC) nanoparticles are prepared through a top-down ball-milling approach from low-priced 3C-SiC powders. This facile mechanical milling strategy ensures large-scale production of 3C-SiC nanoparticles with an amorphous silicon oxide (SiO(x)) shell and simultaneously induces abundant surface states. The surface states are demonstrated to trap the photogenerated carriers, thus remarkably enhancing the charge separation, while the thin SiO(x) shell prevents 3C-SiC from corrosion under visible light. The unique electronic structure of 3C-SiC tackles the challenge associated with low selectivity of photocatalytic CO(2) reduction to C(1) compounds. In conjugation with efficient water oxidation, 3C-SiC nanoparticles can reduce CO(2) into CH(4) with selectivity over 90%. |
format | Online Article Text |
id | pubmed-7877699 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-78776992021-02-12 Highly Selective Photocatalytic CO(2) Reduction to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles under Visible-Light Irradiation Li, Hao Sun, Jianwu ACS Appl Mater Interfaces [Image: see text] The ultimate goal of photocatalytic CO(2) reduction is to achieve high selectivity for a single product with high efficiency. One of the most significant challenges is that expensive catalysts prepared through complex processes are usually used. Herein, gram-scale cubic silicon carbide (3C-SiC) nanoparticles are prepared through a top-down ball-milling approach from low-priced 3C-SiC powders. This facile mechanical milling strategy ensures large-scale production of 3C-SiC nanoparticles with an amorphous silicon oxide (SiO(x)) shell and simultaneously induces abundant surface states. The surface states are demonstrated to trap the photogenerated carriers, thus remarkably enhancing the charge separation, while the thin SiO(x) shell prevents 3C-SiC from corrosion under visible light. The unique electronic structure of 3C-SiC tackles the challenge associated with low selectivity of photocatalytic CO(2) reduction to C(1) compounds. In conjugation with efficient water oxidation, 3C-SiC nanoparticles can reduce CO(2) into CH(4) with selectivity over 90%. American Chemical Society 2021-01-22 2021-02-03 /pmc/articles/PMC7877699/ /pubmed/33480244 http://dx.doi.org/10.1021/acsami.0c19945 Text en © 2021 American Chemical Society. Published by American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
spellingShingle | Li, Hao Sun, Jianwu Highly Selective Photocatalytic CO(2) Reduction to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles under Visible-Light Irradiation |
title | Highly
Selective Photocatalytic CO(2) Reduction
to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles
under Visible-Light Irradiation |
title_full | Highly
Selective Photocatalytic CO(2) Reduction
to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles
under Visible-Light Irradiation |
title_fullStr | Highly
Selective Photocatalytic CO(2) Reduction
to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles
under Visible-Light Irradiation |
title_full_unstemmed | Highly
Selective Photocatalytic CO(2) Reduction
to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles
under Visible-Light Irradiation |
title_short | Highly
Selective Photocatalytic CO(2) Reduction
to CH(4) by Ball-Milled Cubic Silicon Carbide Nanoparticles
under Visible-Light Irradiation |
title_sort | highly
selective photocatalytic co(2) reduction
to ch(4) by ball-milled cubic silicon carbide nanoparticles
under visible-light irradiation |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7877699/ https://www.ncbi.nlm.nih.gov/pubmed/33480244 http://dx.doi.org/10.1021/acsami.0c19945 |
work_keys_str_mv | AT lihao highlyselectivephotocatalyticco2reductiontoch4byballmilledcubicsiliconcarbidenanoparticlesundervisiblelightirradiation AT sunjianwu highlyselectivephotocatalyticco2reductiontoch4byballmilledcubicsiliconcarbidenanoparticlesundervisiblelightirradiation |