Investigating the effective geometrical parameters in the production and morphology of the graphene layers produced using the designed ultrasonic probe

Khalili Dermani, Ensiyeh; Afzalzadeh, reza

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year 12, Issue 1 (Journal of Acoustical Engineering Society of Iran 2024) مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2024, 12(1): 15-25 | Back to browse issues page

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Khalili Dermani E, Afzalzadeh R. Investigating the effective geometrical parameters in the production and morphology of the graphene layers produced using the designed ultrasonic probe. مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2024; 12 (1) : 2
URL: http://joasi.ir/article-1-293-en.html

Investigating the effective geometrical parameters in the production and morphology of the graphene layers produced using the designed ultrasonic probe

Ensiyeh Khalili Dermani ^*

, Reza Afzalzadeh

Abstract: (75 Views)

In this article, the production of high-quality thin-layer graphene using the liquid-phase exfoliation method has been investigated. The step probe was designed using COMSOL Multiphysics. The diameter of the reaction vessel and the distance of the probe tip from the bottom of the vessel were studied in relation to graphene production. The diameters of the containers used were 60 mm, 75 mm, and 85 mm, while the distance of the probe tip from the bottom of the container varied from 20 mm to 50 mm. Initially, the effect of acoustic pressure in each container was simulated. The highest acoustic pressure difference obtained in the simulation was 7.74×10⁷ Pa for a container with a 60 mm diameter and a probe-to-bottom distance of 50 mm. The results of ultraviolet-visible spectroscopy of the samples indicated the presence of a higher amount of graphene, with a peak at 266 nm. Using the Beer-Lambert law, the concentration of the produced graphene was estimated to be approximately 0.13 g/L. SEM and TEM analyses confirmed the production of few-layer graphene with good quality. Finally, Raman spectroscopy was used for complementary characterization of the samples. The I₂D/I_G ratio was found to be approximately 1.02, confirming the successful production of few-layer graphene in this study.

Article number: 2

Keywords: Graphene, Ultrasonic probe, Liquid phase exfoliation, Finite element method, Sound pressure

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Type of Study: Research | Subject: Sonophysics
Received: 2024/06/26 | Accepted: 2024/09/18 | Published: 2024/09/22

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