Development of flexible SERS substrates based on silver nanoparticles and graphene quantum dots on fiberglass for enhanced dye detection

Q1 Environmental Science

Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-08-15 DOI:10.1016/j.enmm.2025.101094

Nurul Mutmainnah Ramlan , Isnaeni Isnaeni , Adnan Fatahillah Afiff , Maria M. Suliyanti , Dahlang Tahir

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引用次数: 0

Abstract

This study presents the development of a flexible Surface Enhanced Raman Spectroscopy (SERS) substrate by combining Silver Nanoparticles (Ag NPs) and Graphene Quantum Dots (GQD) on fiberglass (FG) substrates. GQD is synthesized using an electrolysis method, and Ag NPs are deposited onto the substrate via microwave-assisted hydrothermal synthesis. The resulting substrates, GQD25% + Ag NPs @FG and GQD0.78 % + Ag NPs @FG, were used to detect Raman signals from three different dyes: Malachite Green (MG), Methylene Blue (MB), and Eriochrome Black T (EBT). The SERS results indicate that the GQD0.78 % + Ag NPs @FG substrate exhibits higher sensitivity than GQD25% + Ag NPs @FG. The SERS signal is enhanced by 1.98–2.26 times and 2.54–3.53 times on the GQD25% + Ag NPs @FG and GQD0.78 % + Ag NPs @FG substrates, respectively, due to the presence of GQD, indicating the significant role of GQD concentration in enhancing the Raman signal. This research highlights the potential of flexible SERS substrates for cost-effective, high-sensitivity detection, particularly in environmental and industrial applications.

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基于银纳米粒子和石墨烯量子点的玻璃纤维柔性SERS衬底的开发用于增强染料检测

本研究提出了在玻璃纤维（FG）衬底上结合银纳米粒子（Ag NPs）和石墨烯量子点（GQD）的柔性表面增强拉曼光谱（SERS）衬底的开发。采用电解法合成了GQD，并通过微波辅助水热合成将银纳米粒子沉积在衬底上。所得底物GQD25% + Ag NPs @FG和gqd0.78% + Ag NPs @FG分别用于检测孔雀石绿（MG）、亚甲基蓝（MB）和Eriochrome Black T （EBT）三种不同染料的拉曼信号。SERS结果表明，gqd0.78% + Ag NPs @FG底物的灵敏度高于GQD25% + Ag NPs @FG底物。GQD的存在使GQD25% + Ag NPs @FG和gqd0.78% + Ag NPs @FG底物的SERS信号分别增强1.98 ~ 2.26倍和2.54 ~ 3.53倍，表明GQD浓度对拉曼信号的增强作用显著。这项研究强调了柔性SERS基板具有成本效益，高灵敏度检测的潜力，特别是在环境和工业应用中。

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来源期刊

Environmental Nanotechnology, Monitoring and Management Environmental Science-Water Science and Technology

CiteScore

13.00

自引率

0.00%

发文量

132

审稿时长

48 days

期刊介绍： Environmental Nanotechnology, Monitoring and Management is a journal devoted to the publication of peer reviewed original research on environmental nanotechnologies, monitoring studies and management for water, soil , waste and human health samples. Critical review articles, short communications and scientific policy briefs are also welcome. The journal will include all environmental matrices except air. Nanomaterials were suggested as efficient cost-effective and environmental friendly alternative to existing treatment materials, from the standpoints of both resource conservation and environmental remediation. The journal aims to receive papers in the field of nanotechnology covering; Developments of new nanosorbents for: •Groundwater, drinking water and wastewater treatment •Remediation of contaminated sites •Assessment of novel nanotechnologies including sustainability and life cycle implications Monitoring and Management papers should cover the fields of: •Novel analytical methods applied to environmental and health samples •Fate and transport of pollutants in the environment •Case studies covering environmental monitoring and public health •Water and soil prevention and legislation •Industrial and hazardous waste- legislation, characterisation, management practices, minimization, treatment and disposal •Environmental management and remediation