Fe and Cu co-doped graphitic carbon nitride as an eco-friendly photo-assisted catalyst for aniline degradation.

Fe and Cu co-doped graphitic carbon nitride as an eco-friendly photo-assisted catalyst for aniline degradation. Environ Sci Pollut Res Int. 2020 May 21;: Authors: Li L, Liang M, Huang J, Zhang S, Liu Y, Li F Abstract A novel bimetallic coordinated g-C3N4 with Fe2O3 composite catalyst (FeCu-g-C3N4) was synthesized by simple calcination of Fe3+/Cu2+/melamine precursor. Its catalytic performance was analyzed via photodegrading aniline. The X-ray diffraction (XRD), field emission scanning electronic microscopy (FESEM), Fourier transform infrared (FT-IR), and X-ray photoelectron spectroscopy (XPS) were employed to characterize the composition and structure of the catalysts. Results indicated that Fe mainly distributed in the Fe(III)-N coordination form and partly in Fe2O3 lattice, and Cu inserted at the interstitial positions of g-C3N4 in the Cu(I)-N form. The great optical property was also proved by ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), photoluminescence (PL) spectroscopy, and photocurrent responses. The heterogeneous photo-assisted catalyst exhibited excellent performance in activation of H2O2, resulting in 80% decomposition of aniline with low metal leaching in 6 h. The incorporation of Cu elevated the performance of degradation compared to that only iron doped. A synergistic catalytic effect between solid Cu(I) and Fe(III) accelerated the reduction of Fe(III). The ·OH and 1O2 were confirmed as major rea...
Source: Environmental Science and Pollution Research International - Category: Environmental Health Authors: Tags: Environ Sci Pollut Res Int Source Type: research