Reduced graphene oxide-carbon nanotubes nanocomposites-decorated porous silver nanodendrites for highly efficient SERS sensing

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Optical Materials Pub Date : 2025-03-13 DOI:10.1016/j.optmat.2025.116935

Nguyen Thi Huyen , Luong Truc Quynh Ngan , Le Thi Quynh Xuan , Tran Ai Suong Suong , Cao Thi Thanh , Nguyen Van Tu , Pham Thanh Binh , Tran Van Tan , Nguyen Viet Tuyen , Dao Tran Cao , Pham Van Hai , Vu Xuan Hoa , Nguyen Van Chuc

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Abstract

In this study, an innovative nanocomposite of reduced graphene oxide-carbon nanotubes/porous silver dendrites (rGO-CNTs/pAgDs) was formed on silicon substrate using a straightforward plasma jet technique. This nanocomposite was employed as a surface-enhanced Raman scattering (SERS) substrate to detect hazardous pollutants, including rhodamine 6G (R6G) and pesticide residues like malathion (MAL). For R6G probe, the SERS substrate exhibited a good enhancement factor (EF) of 1.68 × 10⁷ and a low detection limit (LOD) of 2.43 × 10⁻¹³ M. Moreover, this SERS substrate owned a good stability for the SERS intensity which was reduced only by 12.4 % after aging time for 21 days and the relative standard deviation (RSD) values were lower than 15 %, revealing an excellent uniformity and reproducibility. For MAL detection, this SERS substrate exhibited a low LOD of 1.72 × 10⁻¹⁰ M. This SERS substrate shows great potential for detecting and monitoring hazardous pollutants and pesticide residues.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.