Graphite carbon ring modified carbon nitride with a strong built-in electric field for high photocatalysis-self-Fenton performance

Abstract

The photocatalysis-self-Fenton is a novel technology for high-fluent degradation and high mineralization of aqueous organic pollutants. Herein, we constructed a novel photocatalysis-self-Fenton system in which graphite carbon (Cg) rings-doped graphitic...

Construction of a Visible-Light-Response Photocatalysis–Self-Fenton Degradation System of Coupling Industrial Waste Red Mud to Resorcinol–Formaldehyde Resin

“…In addition, the utilization efficiencies of H 2 O 2 ( • OH transformation efficiencies) of different systems were calculated, and the related results were provided in Figure 3f. The • OH transformation efficiency of the photo-self-Fenton reached 34.3%, approximately 1.52 and 6.13 times compared with that of the photo-Fenton and Fenton system, respectively, which may be intrinsic to the higher degradation efficiency of the photo-self-Fenton system [44,45]. Apparently, the degradation efficiency of the photo-self-Fenton system based on RF originated from the in situ efficient production and superior utilization efficiency of H 2 O 2 .…”

Magnetic grinding synthesis of copper sulfide-based photocatalytic composites for the degradation of organic dyes under visible light

“…The photogenerated holes in the VB are responsible for oxidizing organic toxic dye molecules into smaller fragments and eventually mineralizing them at the end. 52 The ˙OH radicals are formed due to the participation of water. Furthermore, the photogenerated electrons in the CB interact with H 2 O 2 to form a large number of ˙OH radicals.…”

Unraveling the Synergistic Mechanism of Boosted Photocatalytic H2O2 Production over Cyano‐g‐C3N4/In2S3/Ppy Heterostructure and Enhanced Photocatalysis‐Self‐Fenton Degradation Performance

“…This can be attributed to the efficient Fe 3+ reduction by photogenerated electrons, ensuring sustainedly high H 2 O 2 utilization and continuous • OH formation. [ 59 ] As shown in Figure 6b, traditional Fenton degradation nearly ceased within the initial 40 min of the process since most added H 2 O 2 rapidly converted to • OH and recombined with each other instead of reacting with MTZ. [ 60 ] As summarized in Table S4 (Supporting Information), the photocatalysis‐self‐Fenton reaction with C≡N─CN/IS/6%Ppy achieved higher removal rate and lower H 2 O 2 usage when compared to previous materials and methods.…”