Synthesis of silver nanoparticles for photothermal and sensing applications and sustainable gel formation

被引：1

作者：

Rugmini R. ^{[1
]}

Sekhar K.C. ^{[1
]}

Sathish S. ^{[2
]}

机构：

[1] Department of Physics, School of Applied and Basic Sciences, Central University of Tamil Nadu, Thiruvarur

[2] Department of Physics, MVJ College of Engineering (Autonomous), Bangalore

来源：

Materials Research Innovations | 2024年 / 28卷 / 04期

关键词：

colorimetric sensing; gels; green synthesis; iron; photothermal; silver nanoparticles; Surface plasmon resonance; waste valorisation;

D O I：

10.1080/14328917.2023.2275875

中图分类号：

学科分类号：

摘要：

Metal nanoparticles (MNPs) have gained significant attention due to their multifunctional properties and broad applications in various fields. In this study, we present a novel and sustainable approach for the synthesis of silver nanoparticles (AgNPs) using waste materials, dried banana pith extract (BPE) and rice water. The synthesised AgNPs exhibit a size of 43 nm and zeta potential of −24.1 mV. A maximum temperature rise of 4°C with an efficiency of 41% is achieved within a short time by the photothermal activity. The qualitative colorimetric detection of Fe3+ and its quantitative spectroscopic detection are achieved in a linear detection range of 20–80 μM and with a limit of detection of 8.5 μM. The sensing mechanism is explained in terms of cooperative binding of Fe3+ ions to BPE-AgNPs. A homogeneous, flexible and stable AgNP-rice starch gel is formed. The work offers environmentally conscious nanomaterials for diverse applications. © 2023 Informa UK Limited, trading as Taylor & Francis Group.

引用

页码：278 / 287

页数：9

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