Cargando…
TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis
In this work, TiN film deposited by plasma enhanced atomic layer deposition (PEALD) is adopted to modify the commercial anatase TiO(2) powders. A series of analyses indicate that the surface modification of 20, 50 and 100 cycles of TiN by PEALD does not change the morphology, crystal size, lattice p...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6092356/ https://www.ncbi.nlm.nih.gov/pubmed/30108310 http://dx.doi.org/10.1038/s41598-018-30726-w |
_version_ | 1783347507285196800 |
---|---|
author | Cao, Yan-Qiang Zhao, Xi-Rui Chen, Jun Zhang, Wei Li, Min Zhu, Lin Zhang, Xue-Jin Wu, Di Li, Ai-Dong |
author_facet | Cao, Yan-Qiang Zhao, Xi-Rui Chen, Jun Zhang, Wei Li, Min Zhu, Lin Zhang, Xue-Jin Wu, Di Li, Ai-Dong |
author_sort | Cao, Yan-Qiang |
collection | PubMed |
description | In this work, TiN film deposited by plasma enhanced atomic layer deposition (PEALD) is adopted to modify the commercial anatase TiO(2) powders. A series of analyses indicate that the surface modification of 20, 50 and 100 cycles of TiN by PEALD does not change the morphology, crystal size, lattice parameters, and surface area of TiO(2) nano powders, but forms an ultrathin amorphous layer of nitrogen doped TiO(2) (TiO(x)N(y)) on the powder surfaces. This ultrathin TiO(x)N(y) can facilitate the absorption of TiO(2) in visible light spectrum. As a result, TiO(x)N(y) coated TiO(2) powders exhibit excellent photocatalytic degradation towards methyl orange under the visible light with good photocatalytic stability compared to pristine TiO(2) powders. TiO(x)N(y) (100 cycles PEALD TiN) coated TiO(2) powders exhibit the excellent photocatalytic activity with the degradation efficiency of 96.5% in 2 hours, much higher than that of pristine TiO(2) powder of only 4.4%. These results clearly demonstrate that only an ultrathin surface modification layer can dramatically improve the visible light photocatalytic activity of commercial TiO(2) powders. Therefore, this surface modification using ALD is an extremely promising route to prepare visible light active photocatalysts. |
format | Online Article Text |
id | pubmed-6092356 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-60923562018-08-20 TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis Cao, Yan-Qiang Zhao, Xi-Rui Chen, Jun Zhang, Wei Li, Min Zhu, Lin Zhang, Xue-Jin Wu, Di Li, Ai-Dong Sci Rep Article In this work, TiN film deposited by plasma enhanced atomic layer deposition (PEALD) is adopted to modify the commercial anatase TiO(2) powders. A series of analyses indicate that the surface modification of 20, 50 and 100 cycles of TiN by PEALD does not change the morphology, crystal size, lattice parameters, and surface area of TiO(2) nano powders, but forms an ultrathin amorphous layer of nitrogen doped TiO(2) (TiO(x)N(y)) on the powder surfaces. This ultrathin TiO(x)N(y) can facilitate the absorption of TiO(2) in visible light spectrum. As a result, TiO(x)N(y) coated TiO(2) powders exhibit excellent photocatalytic degradation towards methyl orange under the visible light with good photocatalytic stability compared to pristine TiO(2) powders. TiO(x)N(y) (100 cycles PEALD TiN) coated TiO(2) powders exhibit the excellent photocatalytic activity with the degradation efficiency of 96.5% in 2 hours, much higher than that of pristine TiO(2) powder of only 4.4%. These results clearly demonstrate that only an ultrathin surface modification layer can dramatically improve the visible light photocatalytic activity of commercial TiO(2) powders. Therefore, this surface modification using ALD is an extremely promising route to prepare visible light active photocatalysts. Nature Publishing Group UK 2018-08-14 /pmc/articles/PMC6092356/ /pubmed/30108310 http://dx.doi.org/10.1038/s41598-018-30726-w Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Cao, Yan-Qiang Zhao, Xi-Rui Chen, Jun Zhang, Wei Li, Min Zhu, Lin Zhang, Xue-Jin Wu, Di Li, Ai-Dong TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis |
title | TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis |
title_full | TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis |
title_fullStr | TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis |
title_full_unstemmed | TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis |
title_short | TiO(x)N(y) Modified TiO(2) Powders Prepared by Plasma Enhanced Atomic Layer Deposition for Highly Visible Light Photocatalysis |
title_sort | tio(x)n(y) modified tio(2) powders prepared by plasma enhanced atomic layer deposition for highly visible light photocatalysis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6092356/ https://www.ncbi.nlm.nih.gov/pubmed/30108310 http://dx.doi.org/10.1038/s41598-018-30726-w |
work_keys_str_mv | AT caoyanqiang tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT zhaoxirui tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT chenjun tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT zhangwei tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT limin tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT zhulin tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT zhangxuejin tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT wudi tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis AT liaidong tioxnymodifiedtio2powderspreparedbyplasmaenhancedatomiclayerdepositionforhighlyvisiblelightphotocatalysis |