Facile synthesis of zinc–iron mixed oxide/carbon nanocomposites as nanocatalysts for the degradation of methylene blue

Facile Synthesis of High Performance Iron Oxide/Carbon Nanocatalysts Derived from the Calcination of Ferrocenium for the Decomposition of Methylene Blue

“…The Fenton reaction [15] is a reaction between Fe (II) and hydrogen peroxide that generates Fe (III) hydroxide and hydroxyl radicals, and is commonly studied for the Fenton-like reagents (Fe (III)) [16][17][18] and photocatalysts (TiO 2 ) [19][20][21][22][23][24], and it can also generate hydroxyl radicals to eliminate pollutants. Iron(III) or iron oxide catalysts were SnO2/Fe2O3 [25], γ-Fe2O3 nanocrystals-anchored macro/meso-porous graphene [26], zinc-iron mixed oxide/carbon nanocomposites [27], ferrocenated compounds [28,29], Fe-doped Sr2Bi2O5 [30], Fe3O4wheat straw [31], iron oxide (Fe3O4, γ-Fe2O3, α-Fe2O3)/cellulose [32], α-Fe2O3/TiO2 [33], α-Fe2O3/MCM-41 [34], Fe (II)Fe (III)-LDHs [35], ZrFe2O5 [36], and α-Fe2O3/Bi2MoO6 [37]. Recently, the paper mill sludge-derived magnetically separable heterogeneous catalyst for the Fenton-like reaction by degradation of MB was studied; the Fe-loaded sludge was calcined in air at 380 °C for 2 h into the paper mill sludge-derived Fe-loaded nanocomposite.…”