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- Title
Catalytic Ozonation of Ponceau 4R Using Multifunctional Magnetic Biochar Prepared from Rubber Seed Shell.
- Authors
Hung Minh Nguyen; Tram Bao Truong; Hong-Hue Thi Nguyen; Phong Thanh Tran; Tuyet-Mai Tran-Thuy; Long Quang Nguyen; Dung Van Nguyen
- Abstract
Herein, abundant and underutilized rubber seed shell (RSS) was valorized for one-pot production of multifunctional magnetic biochar (MBC) through one-pot FeCl3 activation. Fe3O4 and Fe0 crystals were formed in MBC, providing a saturation magnetization of 6.83 emu/g. In addition, the material also had a specific surface area of 378 m²/g and a total pore volume of 0.22 cm³/g. MBC was subsequently explored for catalytic ozonation of Ponceau 4R (P4R). As a result, MBC enhanced P4R ozonation in a broad pH range of 3.0-9.0. At pH 5.8, the pseudofirst-order rate constant of P4R decolorization with MBC improved by 50% compared to that without MBC. Summarily, RSS-derived MBC is a potential catalyst for enhanced ozonation of Ponceau 4R thanks to its low cost, eco-friendliness, relative effectiveness, and magnetic separability.
- Subjects
OZONIZATION; BIOCHAR; SEEDS; SURFACE area; RUBBER
- Publication
Journal of Ecological Engineering, 2023, Vol 24, Issue 12, p143
- ISSN
2299-8993
- Publication type
Article
- DOI
10.12911/22998993/172919