Ag nanoparticles on ZnO nanoplates as a hybrid SERS-active substrate for trace detection of methylene blue.
| Title: | Ag nanoparticles on ZnO nanoplates as a hybrid SERS-active substrate for trace detection of methylene blue. |
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| Authors: | Ha Pham TT; Faculty of Chemistry, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam.; Vu XH; Institute of Science and Technology, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam hoavx@tnus.edu.vn.; Dien ND; Faculty of Labour Protection, Vietnam Trade Union University 169 Tay Son street Hanoi city Vietnam.; Trang TT; Institute of Science and Technology, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam hoavx@tnus.edu.vn.; Kim Chi TT; Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi 100000 Vietnam.; Phuong PH; 31 Electro Mechanism and Explosive one Member Limited Liability Company Bai Bong ward Pho Yen Town Thai Nguyen Province Vietnam.; Nghia NT; Center for Quantum and Electronics, Institute of Physics, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi 100000 Vietnam. |
| Source: | RSC advances [RSC Adv] 2022 Mar 10; Vol. 12 (13), pp. 7850-7863. Date of Electronic Publication: 2022 Mar 10 (Print Publication: 2022). |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101581657 Publication Model: eCollection Cited Medium: Internet ISSN: 2046-2069 (Electronic) Linking ISSN: 20462069 NLM ISO Abbreviation: RSC Adv Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Cambridge [England] : Royal Society of Chemistry, [2011]- |
| Abstract: | Decorating two-dimensional (2D) nanomaterials with nanoparticles provides an effective method to integrate their physicochemical properties. In this work, we present the hydrothermal growth process of 2D zinc oxide nanoplates (ZnO NPls), then silver nanoparticles (AgNPs) were uniformly distributed on the surface of ZnO NPls through the reduction procedure of silver nitrate with sodium borohydride to create a metal-semiconductor hybrid. The amount of AgNPs on the ZnO NPls' surface was carefully controlled by varying the volume of silver nitrate (AgNO3) solution. Moreover, the effect of AgNPs on the surface-enhanced Raman scattering (SERS) property of ZnO NPls was thoroughly investigated by using methylene blue (MB) as the target molecule. After calculation, the maximum enhancement factor value for 10-4 M of MB reached 6.2 × 106 for the peak at 1436 cm-1 and the limit of detection was 10-9 M. In addition, the hybrid nanosystem could distinguish MB with good reproducibility over a wide range of concentrations, from 10-9 to 10-4 M. The SERS mechanism is well elucidated based on the chemical and electromagnetic mechanisms related to the synergism of ZnO and Ag in the enhancement of Raman signal. Abundant hot spots located at the gap between adjacent separate Ag nanoparticles and ZnO nanoplates which formed a strong local electromagnetic field and electron transfer between ZnO and Ag are considered to be the key factors affecting the SERS performance of our prepared ZnO/Ag substrates. In this research, we found high sensitivity of ZnO nanoplates/Ag nanoparticles in detecting MB molecules. This unique metal-semiconductor hybrid nanosystem is advantageous for the formation of Raman signals and is thus suitable for the trace detection of methylene blue.; (This journal is © The Royal Society of Chemistry.) |
| Competing Interests: | There are no conflicts of interest to declare. |
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| Entry Date(s): | Date Created: 20220415 Latest Revision: 20240826 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC8982176 |
| DOI: | 10.1039/d2ra00620k |
| PMID: | 35424719 |
| Database: | MEDLINE |
Journal Article