Green synthesis of silver nanoparticles by pulsed laser ablation using citrus limetta juice extract for clad-modified fiber optic gas sensing application

A. Kalai Priya; Rao Subha Krishna; Yogesh Gaurav Kumar; P. Rohini; Sastikumar Dillibabu

doi:10.1117/12.2597642

1 August 2021 Green synthesis of silver nanoparticles by pulsed laser ablation using citrus limetta juice extract for clad-modified fiber optic gas sensing application

A. Kalai Priya, Rao Subha Krishna, Yogesh Gaurav Kumar, P. Rohini, Sastikumar Dillibabu

Author Affiliations +

Proceedings Volume 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII; 1180214 (2021) https://doi.org/10.1117/12.2597642
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Conference Poster

Abstract

To fabricate efficient gas sensors with novel engineered nanomaterials, silver nanoparticles (Ag-NPs) were successfully green synthesized by Nd: YAG nanosecond pulsed laser ablation technique using a mixture of diluted silver nitrate solution and citrus limetta juice extract irradiated for different ablation durations at room temperature. Brownish-yellow colloidal Ag-NPs formation was confirmed by UV-Vis spectroscopy with the absorbance peak around 407-419 nm. HR-TEM results confirmed well mono-dispersed spherical shape morphology for Ag-NPs with particle size around 8 nm for near to 80 min of ablation time. Notably, the engineered nanostructured Ag-NPs were used freshly in room temperature fiber optic gas sensing. The sensor exhibited an outstanding linear response for ammonia gas (0-500 ppm). The sensitivity was about 128.7 Counts/kPa for ammonia gas at RT. The dynamic response of the sensor was recorded to be 15.5 s and 3.5 s. In summary, laser-ablated green synthesized Ag-NPs showed excellent efficiency in detecting ammonia gas at room temperature.

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A. Kalai Priya, Rao Subha Krishna, Yogesh Gaurav Kumar, P. Rohini, and Sastikumar Dillibabu "Green synthesis of silver nanoparticles by pulsed laser ablation using citrus limetta juice extract for clad-modified fiber optic gas sensing application", Proc. SPIE 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII, 1180214 (1 August 2021); https://doi.org/10.1117/12.2597642

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