| Issue |
E3S Web Conf.
Volume 655, 2025
International Conference on Chemical and Material Engineering in conjunction with the International Symposium on Applied Chemistry (ICCME-ISAC 2025)
|
|
|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 8 | |
| Section | Chemical Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202565501004 | |
| Published online | 27 October 2025 | |
Preparation of Cation Exchange Membrane Using Reduce Graphene Oxide as Additive Made of Battery waste
1 Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, 50275, Indonesia
2 Membrane Research Center (MeR-C), Central Laboratory for Research and Services, Universitas Diponegoro, Semarang, 50275, Indonesia
3 Department of Industrial Technology, Vocational School, Universitas Diponegoro, Semarang, 50275, Indonesia
4 Department of Environmental Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang, 50275, Indonesia
* Corresponding author: heru.susanto@che.undip.ac.id
The increasing global energy demand has led to a continuous increase in battery waste, which raises environmental concerns if not managed properly. This study aimed to utilize battery waste as a graphite source for the synthesis of reduced graphene oxide (rGO) and to apply rGO as an additive in the fabrication of polyvinyl chloride (PVC)-based cation exchange membranes (CEMs). Graphite obtained from battery waste was oxidized and reduced using H2SO4, KMnO4, and H2O2 to produce rGO, which was then incorporated into a PVC solution to form a homogeneous membrane matrix. The membrane was cast, immersed in water, and sulfonated with H2SO4 to obtain the final CEM. Characterization showed that the optimum rGO concentration (6% w/v) resulted in the lowest degree of swelling and the highest ion-exchange capacity and conductivity. This study offers a sustainable route for recycling graphite from battery waste while improving the performance of CEMs.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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