Multifunctional Ag2CO3 microrods as SERS-active substrate for the detection and degradation of Rhodamine B dye

Godad, Shital P.; Kamal, Surabhi

doi:10.1016/j.saa.2021.120176

Cited by 17 publications

(6 citation statements)

References 35 publications

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“…The peaks at 1280, 1357, and 1430 cm −1 are H−C−H wagging vibration, aromatic C−C bending, and vibration collection of C−C, C=C−C stretching and bending, respectively. Last, the peaks at 1507, 1562, 1594, and 1648 cm −1 are respectively aromatic C−H bending, C=N in‐plane symmetric stretching vibration, and vibration collection of aromatic C−C bending and C=C stretching [56,57] . When compared to the ZIF‐8/Ag multilayer, all peak intensities recorded by Ag/ZIF‐8 substrates reached a maximum value.…”

Section: Resultsmentioning

confidence: 98%

“…Last, the peaks at 1507, 1562, 1594, and 1648 cm À 1 are respectively aromatic CÀ H bending, C=N in-plane symmetric stretching vibration, and vibration collection of aromatic CÀ C bending and C=C stretching. [56,57] When compared to the ZIF-8/ Ag multilayer, all peak intensities recorded by Ag/ZIF-8 substrates reached a maximum value. This result demonstrates that the Ag/ZIF-8 structure has significantly higher Raman signal enhancement and sensitivity than the inverted structure.…”

Section: Resultsmentioning

confidence: 99%

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Stacking‐order Reversed Multilayers of ZIF‐8 and Silver Nanoparticles for the SERS Detection of Organic Dye Species

et al. 2023

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Surface‐enhanced Raman spectroscopy (SERS)‐active generally using include nanosized noble metals, semiconductors, or their combination, all of which are mostly subject to challenges such as difficulty in controlling fabrication processes, chemical stability of sensor substrates, reproducibility of amplified Raman signals. To address these concerns, novel SERS substrates were produced by combining zeolitic imidazolate framework‐8 (ZIF‐8) and Ag nanoparticles into stacked layers where the ZIF‐8 acted as “trap nets” of the reporter molecules (organic toxins, rhodamine B, methylene blue and crystal violet). Two different multilayers on a glass slide generated by reversing the stacking order, i. e., Ag/ZIF‐8/glass and ZIF‐8/Ag/glass produced different SERS results. The ZIF‐8/Ag/glass multilayer demonstrated a higher enhancement factor (∼1013), the lower limit of detection (∼10−14 M) of rhodamine B, with a relative standard deviation of 4.2% for crystal violet, which was 10 times greater than the former arrangement. The sensitivity of the SERS substrates via exposure to low concentrations of organic dyes species was measured. Structural, surface morphology and optical features of the substrates were further examined. This result can pave the way for the development of metal‐organic framework‐based SERS platform and provide new insights into its application for label‐free sensors in biomedical diagnosis and environmental monitoring.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Stacking‐order Reversed Multilayers of ZIF‐8 and Silver Nanoparticles for the SERS Detection of Organic Dye Species

et al. 2023

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“…The peaks at 611 cm −1 , 773 cm −1 and 1182 cm −1 can be attributed to C–C–C ring in-plane bending, C–H out-of-plane bending vibrations and C–C stretching vibrations, respectively, while the 1360 cm −1 , 1506 cm −1 and 1647 cm −1 bands are attributed to aromatic C–C stretching vibrations of the R6G molecule. 13,29–32 Compared to the 4-Ag/ZnO/PM and 8-Ag/ZnO/PM samples, the 6-Ag/ZnO/PM sample showed a stronger enhancement effect. This is because the Ag particles formed after four cycles are smaller and more spaced apart, while the Ag particles formed after eight cycles are interconnected resulting in the disappearance of narrow gaps and a decrease in “hot-spots” density.…”

Section: Resultsmentioning

confidence: 99%

High performance and recyclable Ag/ZnO/PM substrate for the detection of organic pollutants

Shao,

Cai,

Yan

et al. 2024

Anal. Methods

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“…However, due to the LSPR effect of Ag in visible light, the SERS spectra measured on a pure Ag substrate show characteristic peaks of RhB at 768, 1196, 1279, 1360, 1507, 1529, and 1648 cm −1 . The vibrational modes corresponding to the characteristic peaks are summarised in Table 1 [ 36 ]. Because the Raman vibration at 1648 cm −1 is the strongest, the SERS performance is assessed using the Raman intensity at 1648 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Ag Nanoparticles Decorated ZnO Nanorods as Multifunctional SERS Substrates for Ultrasensitive Detection and Catalytic Degradation of Rhodamine B

Chen

Zhu

et al. 2022

Nanomaterials

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Industrial wastewater containing large amounts of organic pollutants is a severe threat to the environment and human health. Thus, the rapid detection and removal of these pollutants from wastewater are essential to protect public health and the ecological environment. In this study, a multifunctional and reusable surface-enhanced Raman scattering (SERS) substrate by growing Ag nanoparticles (NPs) on ZnO nanorods (NRs) was produced for detecting and degrading Rhodamine B (RhB) dye. The ZnO/Ag substrate exhibited excellent sensitivity, and the limit of detection (LOD) for RhB was as low as 10−11 M. Furthermore, the SERS substrate could efficiently degrade RhB, with a degradation efficiency of nearly 100% within 150 min. Moreover, it retained good SERS activity after multiple repeated uses. The interaction between Ag NPs, ZnO, and RhB was further investigated, and the mechanism of SERS and photocatalysis was proposed. The as-prepared ZnO/Ag composite structure could be highly applicable as a multifunctional SERS substrate for the rapid detection and photocatalytic degradation of trace amounts of organic pollutants in water.

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Multifunctional Ag2CO3 microrods as SERS-active substrate for the detection and degradation of Rhodamine B dye

Cited by 17 publications

References 35 publications

Stacking‐order Reversed Multilayers of ZIF‐8 and Silver Nanoparticles for the SERS Detection of Organic Dye Species

Stacking‐order Reversed Multilayers of ZIF‐8 and Silver Nanoparticles for the SERS Detection of Organic Dye Species

High performance and recyclable Ag/ZnO/PM substrate for the detection of organic pollutants

Ag Nanoparticles Decorated ZnO Nanorods as Multifunctional SERS Substrates for Ultrasensitive Detection and Catalytic Degradation of Rhodamine B

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