LAUSR

Graphite-like graphitic carbon nitride (g-C3N4) has gained considerable interest in the past few years. However, merely a few studies have been undertaken regarding the application of g-C3N4 for metal adsorption and visible-light-driven reduction of aromatic nitro compounds. Here, we describe a versatile method for the preparation of g-C3N4 nanocomposite decorated with magnetite nanoparticles (g-C3N4@Fe3O4NPs) that subsequently showed their efficiency in sequestration of Cr(VI)/Cr(III) and NaBH4-mediated conversion of 2-nitroaniline (2-NA) and 4-nitroaniline (4-NA) under visible-light exposure. The as-synthesized g-C3N4@Fe3O4NPs adsorbent revealed excellent water dispersibility, superior magnetic property, and porous structure. Numerous surface hydroxyls (−OH) and amino groups (−N, −NH, −NH2) enabled g-C3N4@Fe3O4NPs to rapidly isolate Cr(VI) from aqueous solution through applying an outer magnetic field. The adsorbed Cr(VI) on the g-C3N4@Fe3O4NPs surface offered a maximum equilibrium adsorption capacity o...