SERS active Ag-SiO2 nanoparticles obtained by laser ablation of silver in colloidal silica

被引：11

作者：

Gellini, Cristina ^{[1
]}

Muniz-Miranda, Francesco ^{[2
,3
]}

Pedone, Alfonso ^{[2
]}

Muniz-Miranda, Maurizio ^{[1
]}

机构：

[1] Univ Florence, Dept Chem Ugo Schiff, Via Lastruccia 3, I-50019 Sesto Fiorentino, Italy

[2] Univ Modena & Reggio Emilia, Dept Chem & Geol Sci, Via Campi 103, I-41125 Modena, Italy

[3] Univ Ghent, Ctr Mol Modeling, Technol Pk 903, B-9052 Zwijnaarde, Belgium

来源：

BEILSTEIN JOURNAL OF NANOTECHNOLOGY | 2018年 / 9卷

关键词：

2,2 '-bipyridine; DFT; laser ablation; silica; silver; ENHANCED RAMAN-SCATTERING; EFFECTIVE CORE POTENTIALS; MOLECULAR CALCULATIONS; AG-AT-SIO2; NANOPARTICLES; DOPED SILICA; THIN-FILMS; SURFACE; IONS; AU-AT-SIO2; MECHANISM;

D O I：

10.3762/bjnano.9.224

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly stable Ag-SiO2 nanoparticle composites were first obtained by laser ablation of a silver target in an aqueous colloidal dispersion of silica and examined by UV-vis absorption spectroscopy, transmission electron microscopy and Raman spectroscopy. The surface enhanced Raman scattering (SERS) activity of these nanocomposites was tested using 2,2'-bipyridine as a molecular reporter and excitation in the visible and near-IR spectral regions. The computational DFT approach provided evidence of ligand adsorption on positively charged adatoms of the silver nanostructured surface, in a very similar way to the metal/molecule interaction occurring in the corresponding Ag(I) coordination compound.

引用

页码：2396 / 2404

页数：9

共 50 条

[41] Antifungal properties of Ag-SiO2 core-shell nanoparticles against phytopathogenic fungi
Zheng, Li Ping
Zhang, Zhen
Zhang, Ben
Wang, Jian Wen
NEW MATERIALS AND PROCESSES, PTS 1-3, 2012, 476-478 : 814 - +
[42] Fabrication of antibacterial monodispersed Ag-SiO2 core-shell nanoparticles with high concentration
Xu, Ke
Wang, Jie-Xin
Kang, Xu-Liang
Chen, Jian-Feng
MATERIALS LETTERS, 2009, 63 (01) : 31 - 33
[43] Polyethyleneimine-assisted formation of Ag-SiO2 hybrid microspheres for H2O2 sensing and SERS applications
Mehta, Swati
Bahadur, Jitendra
Sen, Debasis
Nechiyil, Divya
Bhatt, H.
Kumar, Naveen
Prakash, Jyoti
RSC ADVANCES, 2023, 13 (42) : 29086 - 29098
[44] Colloidal Au and Au/Ag Nanoparticles Prepared by Laser Ablation in Liquid as a Substrate of Surface Enhanced Raman Scattering (SERS) in Ascorbic Acid Detection
Herbani, Yuliati
Isnaeni
Irmaniar
Ihsan, Mohammad Rifqi
Putra, Yudha Pratama
Saraswati, Teguh Endah
PROCEEDINGS OF THE 5TH INTERNATIONAL SYMPOSIUM ON FRONTIER OF APPLIED PHYSICS (ISFAP 2019), 2020, 2256
[45] Multiwavelength SERS of Magneto-Plasmonic Nanoparticles Obtained by Combined Laser Ablation and Solvothermal Methods
Talaikis, Martynas
Mikoliunaite, Lina
Gkouzi, Aikaterini-Maria
Petrikaite, Vita
Stankevicius, Evaldas
Drabavicius, Audrius
Selskis, Algirdas
Juskenas, Remigijus
Niaura, Gediminas
ACS OMEGA, 2023, 8 (51): : 49396 - 49405
[46] MORPHOLOGIES OF SILVER NANOPARTICLES (Ag NPs) SYNTHESIZED BY HYDROTHERMAL AND LASER ABLATION TECHNIQUES
Shahid, Rehana
Khalid, Sidra
Shahzadi, Shamaila
SURFACE REVIEW AND LETTERS, 2020, 27 (12)
[47] Reduction of Ag(CN)2- on silver and platinum colloidal nanoparticles
Henglein, A
LANGMUIR, 2001, 17 (08) : 2329 - 2333
[48] Surface Enhanced Raman Scattering (SERS) Studies of Gold and Silver Nanoparticles Prepared by Laser Ablation
Herrera, Gloria M.
Padilla, Amira C.
Hernandez-Rivera, Samuel P.
NANOMATERIALS, 2013, 3 (01) : 158 - 172
[49] Electrical properties of nanocomposite materials based on PEDOT:PSS polymer mixture doped with Ag, Ag-TiO2 and Ag-SiO2 nanoparticles
Alikhaidarova, Elmira
Afanasyev, Dmitriy
Ibrayev, Niyazbek
MATERIALS TODAY-PROCEEDINGS, 2020, 25 : 28 - 32
[50] Syntheses and SERS investigation of core-shell Ag@SiO2 nanoparticles
Meng, Xianghua
Jiang, Chaoyang
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 247

← 1 2 3 4 5 →