One-pot synthesis of multifunctional iron- and manganese-loaded biochar from durian husks for photo-Fenton degradation of tartrazine
Więcej
Ukryj
1
Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, Vietnam
2
Vietnam National University Ho Chi Minh City, Linh Xuan Ward, Ho Chi Minh City, Vietnam
Autor do korespondencji
Dung Van Nguyen
Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City, Vietnam
Ecol. Eng. Environ. Technol. 2025; 9:251-262
SŁOWA KLUCZOWE
DZIEDZINY
STRESZCZENIE
The current research proposes a novel approach to fabricate multifunctional iron- and manganese-loaded biochar (FeMn/BC) through one-pot pyrolysis of FeCl₃- and KMnO₄-impregnated durian husks (DHs). Analytical results indicated the presence of 5.72 wt% Fe (Fe₃O₄ & Fe0) and 2.90 wt% Mn (MnO) within the biochar (BC) matrix. Regarding porous properties, FeMn/BC possessed a specific surface area (SBET) of 292 m²/g and a total pore volume (Vtotal) of 0.19 cm³/g. Accordingly, FeMn/BC was explored as a photo-Fenton catalyst for tartrazine (TZ) degradation. At pH 3.0, 200 ppm H₂O₂, and UV light, 0.50 g/L FeMn/BC treated 92.0% TZ (50 ppm) within 10 min of adsorption and 120 min of oxidation. In addition, FeMn/BC with a saturation magnetization (MS) of 5.13 emu/g could be separated from treated mixtures by external magnetic fields. Overall, the multifunctional FeMn/BC prepared from DH waste demonstrated its magnetic separability and efficacy in treating TZ.