| Issue |
E3S Web Conf.
Volume 626, 2025
International Conference on Energy, Infrastructure and Environmental Research (EIER 2025)
|
|
|---|---|---|
| Article Number | 03001 | |
| Number of page(s) | 5 | |
| Section | Environment, Infrastructure Systems and Technologies | |
| DOI | https://doi.org/10.1051/e3sconf/202562603001 | |
| Published online | 15 April 2025 | |
Adsorption of crystal violet dye by biochar made from coffee ground
1 National Institute of Applied Mechanics and Informatics, Vietnam Academy of Science and Technology, 291 Dien Bien Phu, Ho Chi Minh City, Vietnam
2 Faculty of Natural Sciences, Electric Power University, 235 Hoang Quoc Viet, Ha Noi City, Vietnam
3 Faculty of Natural Sciences Education, Sai Gon University, 273 An Duong Vuong St., Ward 3, District 5, Ho Chi Minh City, Vietnam
* Email: bxvuong@sgu.edu.vn
# Equal contribution as the first author.
Biochar was prepared by anaerobic heating coffee ground at 800 oC for 3 hours. The prepared sample was used to adsorb crystal violet dye in an aqueous environment. The result showed that the biochar sample had good adsorption capacity for crystal violet dye, with the maximum adsorption capacity of 128.87 (mg/g). Thus, low-cost biochar prepared from coffee grounds has great potential to be used as an adsorbent material to remove crystal violet dye in an aqueous environment.
Key words: Biochar / crystal violet / coffee ground / adsorption / aqueous environment
© The Authors, published by EDP Sciences, 2025
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