Effects of electron beam irradiation on characteristic properties of expanded graphite

Pham Thi Thu Hong1, Nguyen Thanh Duoc1, Nguyen Thi Ly1, Chu Nhut Khanh1, Cao Van Chung1, Doan Binh1, Nguyen Tuan Kien2
1 Research and Development Center for Radiation Technology. 202A Street 11, Linh Xuan Ward, Thu Duc District, HCM City, Vietnam
2 Infineon Technologies Asia Pacific Pte. Ltd., Singapore 349253, Singapore

Main Article Content


Vietnamese graphite powder was irradiated by electron beam radiation (EB) at a range of dose from 0 to 120 kGy, then the graphite samples were expanded with a mixture of H2O2:H2SO4 (1,4:20, v/v) incorporating microwave treatment at 700 W for 30 seconds. The characteristic properties of graphite before and after expansion were evaluated by methods of FTIR, Raman, SEM and XRD. Besides the self-assembled of the graphite’s structure after irradiation, the electron beam radiation also facilitated intercalation processing to make expanded graphite, with coefficient of expansion (Kv) 35% higher than that of pristine graphite.

Article Details


[1]. Pierson, H.O., Handbook of carbon, graphite, diamond and fullerenes - Properties, processing and applications, William Andrew Publishing, Noyes, 1993.
[2]. Allah D.Jara, Mha Betemariam, Girma Woldetinsae, Jung Yong Kim, “Purification, application and current market trend of natural graphite: A review”, International Journal of Mining Science and Technology, 29 (5), 671-689, 2019.
[3]. Phan Van Thinh, Synthesis of magnetic materials based on Vietnamese natural graphite for environmental treatment of organic pollution (Congo red), Vietnam Academy of Science and Technology, 2019.
[4]. Ngoc Bich Hoang, Thi Thuong Nguyen, Tien Sy Nguyen, Thi Phuong Quynh Bui & Long Giang Bach, “The application of expanded graphite fabricated by microwave method to eliminate organic dyes in aqueous solution”, Cogent Engineering, 6: 1584939, 2019.
[5]. Ruijia Lan Wenbin Su and Jitai Li, “Preparation and Catalytic Performance of Expanded Graphite for Oxidation of Organic Pollutant”, Catalysts, 9, 280, 2019.
[6]. Beata Tryba , Ryszard J. Kalenczuk, Feiyu Kang, Michio Inagaki & Antoni W. Morawski, “Studies of Exfoliated Graphite (EG) for Heavy Oil Sorption”, Molecular Crystals and Liquid Crystals, 340 (1), 113-119, 2000.
[7]. Liqin Wang, Xiujun Fu, E. Chang, Haitao Wu, Kun Zhang, Xianchao Lei Ruijun Zhang, Xiaowen Qi, and Yulin Yang, “Preparation and Its Adsorptive Property of Modified Expanded Graphite Nanomaterials” Journal of Chemistry, Article ID 678151, 5 pages, 2014.
[8]. Ming Yanga, Yinghua Zhao, Xiuzhi Sun, Xiantao Shao & Dengxin Li, “Adsorption of Sn(II) on expanded graphite: kinetic and equilibrium isotherm studies”, Desalination and Water Treatment, 52, 283–292, 2014.
[9]. Wei-Che Hung, Kuo-Hui Wu, Dong-Yi Lyu, Ken-Fa Cheng, Wen-Chien Huang, “Preparation and characterization of expanded graphite/metal oxides for antimicrobial application”, Materials Science & Engineering C, 75, 1019-1025, 2017.
[10]. Bo Hou, Hong-juan Sun, Tong-jiang Peng, Xi-yue Zhang, Ya-zhou Ren, “Rapid preparation of expanded graphite at low temperature”, New Carbon Materials, 35 (3), 262-268, 2020.
[11]. A. V. Yakovlev, S. L. Zabud’kov, and E. V. Yakovlena, “Thermally Expanded Graphite: Synthesis, Properties, and Prospects for Use”, Russian Journal of Applied Chemistry, 79 (11), 1741- 1751, 2006.
[12]. R. Goudarzi and G. Hashemi Motlagh “The effect of graphite intercalated compound particle size and exfoliation temperature on porosity and macromolecular diffusion in expanded graphite”, Heliyon, 5, e02595, 2019.
[13]. Ting Liu, Ruijun Zhang, Xuesha Zhang, Kang Liu, Yanyan Liu, “One-step room-temperature preparation of expanded graphite”, Carbon, 119, 544-547, 2017.
[14]. Beata Tryba, Antoni W. Morawski and Michio Inagaki “Preparation of exfoliated graphite by microwave irradiation”, Carbon, 43(11), 2417-2419, 2005.
[15]. Maria Cecilia Evoraa, Nitilaksha Hiremath, Xinyi Lu, Nam-Goo Kang, Leonardo Gondin de Andrada e Silva, Gajanan Bhat, Jimmy Mays, “Effect of Electron Beam and Gamma Rays on Carbon Nanotube Yarn Structure”, Materials Research, 20 (Suppl. 2), 386-392, 2017.
[16]. Bin Li, Yi Feng, Kewang Ding, Gang Qian, Xuebin Zhang, Jingcheng Zhang, “The effect of gamma ray irradiation on the structure of graphite and multi-walled carbon nanotubes”, Carbon, 60, 186 – 192, 2013.
[17]. D.A. Bradley and et al., “Raman spectroscopy and X-ray photo-spectroscopy analysis of graphite media irradiated at low doses”, Applied Radiation and Isotopes, 147, 105- 112, 2019.
[18]. Daniele Santos Cavanellas Gomes, Max Passos Ferreira, Clascídia A. Furtado, Ana Carolina Silva Mota, 2014 “Gamma radiation effects on graphite”, https://www.researchgate.net/publication/263083912.
[19]. Min-Jung Jung, Mi-Seon Park, and Young-Seak Lee, “Effects of E-Beam Irradiation on the Chemical, Physical, and Electrochemical Properties of Activated Carbons for Electric Double-Layer Capacitors”, Journal of Nanomaterials, Article ID 240264, 1-8, 2015. http://dx.doi.org/1.