Efficient Visible-Light Photocatalysis of 2D-MXene Nanohybrids with Gd(3+)- and Sn(4+)-Codoped Bismuth Ferrite

[Image: see text] Nowadays, photocatalysis has gained tremendous interest owing to the fact that it can overcome water crisis as well as the environmental issues by utilizing a major source of solar energy. The nanohybrid structures of Gd(3+)- and Sn(4+)-doped bismuth ferrite (Bi(1–x)Gd(x)Fe(1–y)Sn(y); BGFSO) with two-dimensional (2D) MXene sheets are synthesized by the coprecipitation method. The 2D sheets have a large surface area, incorporation of which into Bi(1–x)Gd(x)Fe(1–y)Sn(y) (BGFSO) nanoparticles provides a path for electrons to flow, which results in large recombination time and thus enhances dye degradation. The Bi(0.90)Gd(0.10)Fe(0.80)Sn(0.20)O(3)/MXene (BGFO-20Sn/MXene) nanohybrid shows 100% degradation of Congo dye from the catalytic solution in 120 min, which is highly efficient for industrial application.