Direct Synthesis of Graphene from a Recycled Battery Core by Solution Plasma Exfoliation and its Application for Removing Methylene Blue and Rhodamine B from Aqueous Solutions

Автор(ы) N.V. Hao1, D.H. Tung2, N.V. Khien1, N.N. Anh3, N.V. Tu3, P.V. Trinh3,4
Принадлежность

1Faculty of Physics and Technology, TNU – Thai Nguyen University of Science. Thai Nguyen city, Vietnam

2Institute of Physics, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet St., Cau Giay District, Hanoi, Vietnam

3Institute of Materials Science, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet St., Cau Giay District, Hanoi, Vietnam

4Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18, Hoang Quoc Viet St., Cau Giay District, Hanoi, Vietnam

Е-mail haonv@tnus.edu.vn
Выпуск Том 12, Год 2020, Номер 5
Даты Received 20 May 2020; revised manuscript received 15 October 2020; published online 25 October 2020
Ссылка N.V. Hao, D.H. Tung, et al., J. Nano- Electron. Phys. 12 No 5, 05029 (2020)
DOI https://doi.org/10.21272/jnep.12(5).05029
PACS Number(s) 62.23.Kn, 68.55.at
Ключевые слова Graphene (22) , Solution plasma, Plasma exfoliation, Ultrasonic-assisted plasma discharge.
Аннотация

We present a novel method of the solution plasma exfoliated techniques for the production of graphene sheets from recycled battery core at room temperature. This is a fast, simple and efficient method to produce graphene sheets using electrode pairs with DC high voltage power sources which were immersed in a solution. The as-prepared samples were characterized by various techniques such as scanning electron microscopy (SEM), atomic force microscopy (AFM), Raman scattering, and optical emission spectroscopy (OES). The obtained results showed that graphene has an average diameter of 1.5 m and a thickness of about 3 nm in respect of 7 to 10 layers. The prepared graphene was used as an effective adsorbent for the removal of methylene blue (MB) and Rhodamine B (RhB) from aqueous solutions. As a result, the adsorption efficiency of MB and RhB was determined to be 91% and 87 %, respectively. This is an attractive method to replace the previously reported graphene synthesis method.

Список литературы