Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties

In this study, we fabricated Er-doped ZnO/CuS/Au core-shell nanowires using two-step wet chemical methods and an ion-sputtering method on a glass substrate as a bifunctional photocatalytic and surface-enhanced Raman scattering (SERS) substrate. The characteristic properties of as-prepared photocatal...

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Autores principales:	Chia-Man Chou, Tan-Tzu Chang, Chin-Yi Chen, Yu-Cheng Chang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Er-doped ZnO/CuS/Au core-shell nanowires wet chemical ion-sputtering surface-enhanced Raman scattering photocatalytic activity acid orange 7 Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/e8defb907b2e43199b5b1e4d71d95f89
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spelling	oai:doaj.org-article:e8defb907b2e43199b5b1e4d71d95f892021-11-25T17:06:11ZConstructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties10.3390/catal111113472073-4344https://doaj.org/article/e8defb907b2e43199b5b1e4d71d95f892021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1347https://doaj.org/toc/2073-4344In this study, we fabricated Er-doped ZnO/CuS/Au core-shell nanowires using two-step wet chemical methods and an ion-sputtering method on a glass substrate as a bifunctional photocatalytic and surface-enhanced Raman scattering (SERS) substrate. The characteristic properties of as-prepared photocatalysts were confirmed by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray spectroscopy, DR/UV-Vis spectroscopy, and photoluminescence spectroscopy. Compared with Er-doped ZnO nanowires and Er-doped ZnO/CuS core-shell nanowires, Er-doped ZnO/CuS/Au core-shell nanowires exhibited remarkably photocatalytic activity to degrade acid orange 7 solutions under blue LED light. These results ascribed to the Er-doped ZnO/CuS/Au core-shell nanowires can enhance the visible-light absorbance and the separation efficiency of photogenerated electron-hole pairs, inducing their higher photocatalytic activity under blue LED light. In addition, Er-doped ZnO/CuS/Au core-shell nanowires exhibit high sensitivity, a low detection limit (10<sup>−6</sup> M), uniformity, recyclability, and stability of SERS performance for detected acid orange 7.Chia-Man ChouTan-Tzu ChangChin-Yi ChenYu-Cheng ChangMDPI AGarticleEr-doped ZnO/CuS/Au core-shell nanowireswet chemicalion-sputteringsurface-enhanced Raman scatteringphotocatalytic activityacid orange 7Chemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1347, p 1347 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Er-doped ZnO/CuS/Au core-shell nanowires wet chemical ion-sputtering surface-enhanced Raman scattering photocatalytic activity acid orange 7 Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	Er-doped ZnO/CuS/Au core-shell nanowires wet chemical ion-sputtering surface-enhanced Raman scattering photocatalytic activity acid orange 7 Chemical technology TP1-1185 Chemistry QD1-999 Chia-Man Chou Tan-Tzu Chang Chin-Yi Chen Yu-Cheng Chang Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties
description	In this study, we fabricated Er-doped ZnO/CuS/Au core-shell nanowires using two-step wet chemical methods and an ion-sputtering method on a glass substrate as a bifunctional photocatalytic and surface-enhanced Raman scattering (SERS) substrate. The characteristic properties of as-prepared photocatalysts were confirmed by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray spectroscopy, DR/UV-Vis spectroscopy, and photoluminescence spectroscopy. Compared with Er-doped ZnO nanowires and Er-doped ZnO/CuS core-shell nanowires, Er-doped ZnO/CuS/Au core-shell nanowires exhibited remarkably photocatalytic activity to degrade acid orange 7 solutions under blue LED light. These results ascribed to the Er-doped ZnO/CuS/Au core-shell nanowires can enhance the visible-light absorbance and the separation efficiency of photogenerated electron-hole pairs, inducing their higher photocatalytic activity under blue LED light. In addition, Er-doped ZnO/CuS/Au core-shell nanowires exhibit high sensitivity, a low detection limit (10<sup>−6</sup> M), uniformity, recyclability, and stability of SERS performance for detected acid orange 7.
format	article
author	Chia-Man Chou Tan-Tzu Chang Chin-Yi Chen Yu-Cheng Chang
author_facet	Chia-Man Chou Tan-Tzu Chang Chin-Yi Chen Yu-Cheng Chang
author_sort	Chia-Man Chou
title	Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties
title_short	Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties
title_full	Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties
title_fullStr	Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties
title_full_unstemmed	Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties
title_sort	constructing er-doped zno/cus/au core-shell nanowires with enhanced photocatalytic and sers properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e8defb907b2e43199b5b1e4d71d95f89
work_keys_str_mv	AT chiamanchou constructingerdopedznocusaucoreshellnanowireswithenhancedphotocatalyticandsersproperties AT tantzuchang constructingerdopedznocusaucoreshellnanowireswithenhancedphotocatalyticandsersproperties AT chinyichen constructingerdopedznocusaucoreshellnanowireswithenhancedphotocatalyticandsersproperties AT yuchengchang constructingerdopedznocusaucoreshellnanowireswithenhancedphotocatalyticandsersproperties
_version_	1718412748801441792

Constructing Er-Doped ZnO/CuS/Au Core-Shell Nanowires with Enhanced Photocatalytic and SERS Properties

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