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Ag-nanoparticle-decorated porous ZnO-nanosheets grafted on a carbon fiber cloth as effective SERS substrates.
Nanoscale. 2014 Dec 21; 6(24):15280-5.N

Abstract

We report on the large-scale synthesis of Ag-nanoparticle (Ag-NP) decorated ZnO-mesoporous-nanosheets (NSs) grafted on a flexible carbon fiber cloth (CFC), as sensitive and reproducible surface enhanced Raman scattering (SERS) substrates with excellent flexibility. The composite SERS-substrates are achieved by a combination of atomic layer deposition of ZnO-seeds on each fiber of the CFC (denoted as ZnO-seeds@CFC), chemical bath deposition and subsequent pyrolysis for the creation of ZnO-mesoporous-NSs grafted on ZnO-seeds@CFC, and ion-sputtering of Ag-NPs on the ZnO-mesoporous-NSs. As abundant SERS "hot spots" are generated from the electromagnetic coupling of the densely distributed Ag-NPs, and the semiconducting ZnO-mesoporous-NSs also have chemical supporting enhancement and distinct molecule adsorbing abilities, the composite SERS-substrates demonstrate high SERS-sensitivity with good signal reproducibility. As a trial for potential applications, the composite SERS-substrates were used to identify pesticides and highly toxic polychlorinated biphenyls (PCBs), and low concentrations down to 10(-7) M for methyl parathion and 5 × 10(-6) M for PCB-77 were reached, respectively, showing promising potential for the SERS-based rapid detection of toxic organic pollutants in the environment.

Authors+Show Affiliations

Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China. gwmeng@issp.ac.cn.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25382607

Citation

Wang, Zhiwei, et al. "Ag-nanoparticle-decorated Porous ZnO-nanosheets Grafted On a Carbon Fiber Cloth as Effective SERS Substrates." Nanoscale, vol. 6, no. 24, 2014, pp. 15280-5.
Wang Z, Meng G, Huang Z, et al. Ag-nanoparticle-decorated porous ZnO-nanosheets grafted on a carbon fiber cloth as effective SERS substrates. Nanoscale. 2014;6(24):15280-5.
Wang, Z., Meng, G., Huang, Z., Li, Z., & Zhou, Q. (2014). Ag-nanoparticle-decorated porous ZnO-nanosheets grafted on a carbon fiber cloth as effective SERS substrates. Nanoscale, 6(24), 15280-5. https://doi.org/10.1039/c4nr03398a
Wang Z, et al. Ag-nanoparticle-decorated Porous ZnO-nanosheets Grafted On a Carbon Fiber Cloth as Effective SERS Substrates. Nanoscale. 2014 Dec 21;6(24):15280-5. PubMed PMID: 25382607.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ag-nanoparticle-decorated porous ZnO-nanosheets grafted on a carbon fiber cloth as effective SERS substrates. AU - Wang,Zhiwei, AU - Meng,Guowen, AU - Huang,Zhulin, AU - Li,Zhongbo, AU - Zhou,Qitao, Y1 - 2014/11/10/ PY - 2014/11/11/entrez PY - 2014/11/11/pubmed PY - 2015/10/9/medline SP - 15280 EP - 5 JF - Nanoscale JO - Nanoscale VL - 6 IS - 24 N2 - We report on the large-scale synthesis of Ag-nanoparticle (Ag-NP) decorated ZnO-mesoporous-nanosheets (NSs) grafted on a flexible carbon fiber cloth (CFC), as sensitive and reproducible surface enhanced Raman scattering (SERS) substrates with excellent flexibility. The composite SERS-substrates are achieved by a combination of atomic layer deposition of ZnO-seeds on each fiber of the CFC (denoted as ZnO-seeds@CFC), chemical bath deposition and subsequent pyrolysis for the creation of ZnO-mesoporous-NSs grafted on ZnO-seeds@CFC, and ion-sputtering of Ag-NPs on the ZnO-mesoporous-NSs. As abundant SERS "hot spots" are generated from the electromagnetic coupling of the densely distributed Ag-NPs, and the semiconducting ZnO-mesoporous-NSs also have chemical supporting enhancement and distinct molecule adsorbing abilities, the composite SERS-substrates demonstrate high SERS-sensitivity with good signal reproducibility. As a trial for potential applications, the composite SERS-substrates were used to identify pesticides and highly toxic polychlorinated biphenyls (PCBs), and low concentrations down to 10(-7) M for methyl parathion and 5 × 10(-6) M for PCB-77 were reached, respectively, showing promising potential for the SERS-based rapid detection of toxic organic pollutants in the environment. SN - 2040-3372 UR - https://www.unboundmedicine.com/medline/citation/25382607/Ag_nanoparticle_decorated_porous_ZnO_nanosheets_grafted_on_a_carbon_fiber_cloth_as_effective_SERS_substrates_ L2 - https://doi.org/10.1039/c4nr03398a DB - PRIME DP - Unbound Medicine ER -