Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detection
In this paper, the aluminum/graphitic‑carbon nitride (Al/C3N4) loaded with various sizes of prismatic Ag nanoparticles (AgNPs) was facilely prepared. By means of XRD, XPS, Raman and fluorescence spectroscopy, it was demonstrated that strong interaction between Al/C3N4 and various sizes of prismatic...
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doaj-a4bb9ee5cab0495890f3f549d7e96ad22020-11-25T02:50:40ZengElsevierMaterials & Design0264-12752020-06-01191Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detectionXuejuan Chen0Hui Gu1Lixia Qin2Shi-Zhao Kang3Xiangqing Li4School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, ChinaSchool of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, ChinaCorresponding authors.; School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, ChinaSchool of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, ChinaCorresponding authors.; School of Chemical and Environmental Engineering, Center of Graphene Research, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, ChinaIn this paper, the aluminum/graphitic‑carbon nitride (Al/C3N4) loaded with various sizes of prismatic Ag nanoparticles (AgNPs) was facilely prepared. By means of XRD, XPS, Raman and fluorescence spectroscopy, it was demonstrated that strong interaction between Al/C3N4 and various sizes of prismatic AgNPs can be achieved, which was beneficial for the uniform distribution of AgNPs on surfaces of Al/C3N4. Interestingly, the change trend of AgNPs' size in Al/C3N4/Agx exhibited a distinct “W-shaped” with the increase of reduction time. Also, as the changing size of prismatic AgNPs, the surface-enhanced Raman scattering (SERS) intensity of brilliant blue on Al/C3N4/Agx showed the “M-shaped” based on the bands at 1166 cm−1, 1242 cm−1, 1580 cm−1, and 1606 cm−1. Moreover, the SERS spectra of brilliant blue and relative SERS intensities were hardly changed on the Al/C3N4/Ag168 substrate for 45 days or after seven recycles. In addition, brilliant blue, crystal violet and 4-aminothiophenol with low concentration can also be detected, which indicated that the Al/C3N4/Agx as a recyclable SERS substrate not only presented a continuous stability but also kept high sensitivity for detection of environmental pollutants.http://www.sciencedirect.com/science/article/pii/S026412752030143XFabricationC3N4/AgNano-micro compositeRecyclable substrateSERS detection |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xuejuan Chen Hui Gu Lixia Qin Shi-Zhao Kang Xiangqing Li |
spellingShingle |
Xuejuan Chen Hui Gu Lixia Qin Shi-Zhao Kang Xiangqing Li Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detection Materials & Design Fabrication C3N4/Ag Nano-micro composite Recyclable substrate SERS detection |
author_facet |
Xuejuan Chen Hui Gu Lixia Qin Shi-Zhao Kang Xiangqing Li |
author_sort |
Xuejuan Chen |
title |
Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detection |
title_short |
Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detection |
title_full |
Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detection |
title_fullStr |
Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detection |
title_full_unstemmed |
Facile fabrication of adjustable Al/C3N4/Agx nano-micro composites for sensitive SERS detection |
title_sort |
facile fabrication of adjustable al/c3n4/agx nano-micro composites for sensitive sers detection |
publisher |
Elsevier |
series |
Materials & Design |
issn |
0264-1275 |
publishDate |
2020-06-01 |
description |
In this paper, the aluminum/graphitic‑carbon nitride (Al/C3N4) loaded with various sizes of prismatic Ag nanoparticles (AgNPs) was facilely prepared. By means of XRD, XPS, Raman and fluorescence spectroscopy, it was demonstrated that strong interaction between Al/C3N4 and various sizes of prismatic AgNPs can be achieved, which was beneficial for the uniform distribution of AgNPs on surfaces of Al/C3N4. Interestingly, the change trend of AgNPs' size in Al/C3N4/Agx exhibited a distinct “W-shaped” with the increase of reduction time. Also, as the changing size of prismatic AgNPs, the surface-enhanced Raman scattering (SERS) intensity of brilliant blue on Al/C3N4/Agx showed the “M-shaped” based on the bands at 1166 cm−1, 1242 cm−1, 1580 cm−1, and 1606 cm−1. Moreover, the SERS spectra of brilliant blue and relative SERS intensities were hardly changed on the Al/C3N4/Ag168 substrate for 45 days or after seven recycles. In addition, brilliant blue, crystal violet and 4-aminothiophenol with low concentration can also be detected, which indicated that the Al/C3N4/Agx as a recyclable SERS substrate not only presented a continuous stability but also kept high sensitivity for detection of environmental pollutants. |
topic |
Fabrication C3N4/Ag Nano-micro composite Recyclable substrate SERS detection |
url |
http://www.sciencedirect.com/science/article/pii/S026412752030143X |
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