Clean Water and Sanitation (SDG 6), Climate Action (SDG 13)
Magnetic Fe 3 O 4 /nitrogen-doped porous carbon nanocomposites for the removal of organic dyes
Anaclet Nsabimana* University of Rwanda, Rwanda
In this work, a multifunctional magnetic Fe 3 O 4 /nitrogen doped-porous carbon nanocomposite (Fe 3 O 4 /N- PCNC) with remarkable magnetic, adsorption and catalytic properties was synthesized using naringin as carbon pre- cursor. Characterization studies revealed that Fe 3 O 4 /N-PCNC exhibited a mesoporous structure with different functional groups and good magnetic properties. Its applications for the removal of organic dyes were investigated. The removal of the organic dyes from water showed that over 99.7% crystal violet and rhodamine B, and 100% thionine with concentrations of ca. 60 mg/L can be removed by Fe 3 O 4 /N-PCNC within 15 min. Recovery and recycling studies showed that, after 5 cycles, Fe 3 O 4 /N- PCNC, lost only around 2.94%, 3.97% and 3.36% of its initial ability to remove crystal violet, rhodamine B and thionine, respectively. This indicates the promising application potential of Fe 3 O 4 /N-PCNC in water treatment field.
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© The Author(s), 2023
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