Visible light promoted Fe3S4 Fenton oxidation of atrazine

Simultaneous Tuning Band Gaps of Cu2O and TiO2 to Form S‐Scheme Hetero‐Photocatalyst

“…This result firmly demonstrated that the possible recombination of photogenerated electron-hole pairs was inhibited. [28] Moreover, the nearly complete quenching of fluorescence shown in Figure 6B all directly reveals the samples experienced excellent charge separation, which is consistent with the photocurrent analysis. We believe the assembled TiO 2 nanowires definitely improved light scattering absorption somehow.…”

“…30 times as compared to pristine TiO 2 ,suggesting that photogenerated electron-hole pairs were effectively separated. This result firmly demonstrated that the possible recombination of photogenerated electron-hole pairs was inhibited [28]. Moreover, the nearly complete quenching of fluorescence shown in Figure6Ball directly…”

Stoichiometry-controlled synthesis of pyrite and greigite particles for photo-Fenton degradation catalysis

“…29 Experiments showed that under visible light irradiation, greigite (Fe 3 S 4 ) could excite photogenerated charge carriers and transfer them to the surface, reducing surface Fe( iii ) to active Fe( ii ). 30 Greigite and pyrite have similar chemical compositions and smaller band gaps, which make them respond to the wider solar spectrum from the ultraviolet to infrared region, and were expected to have good photocatalytic performance. However, it is difficult to synthesize pure-phase crystals of FeS 2 and Fe 3 S 4 in the same system due to the unique transformation mechanism in the synthesis of iron sulfide, which is to generate FeS first and then convert to different iron sulfides such as Fe 7 S 8 , Fe 3 S 4 , FeS 2 , etc.…”

Deep‐sea clays using as active Fenton catalysts for self‐propelled motors

“…In homogeneous Fenton processes, drawbacks of the secondary contamination caused by the iron-containing sludge were encountered due to the less implement of separation. 4 Presently, great efforts have been devoted to seeking efficient heterogeneous Fenton or Fenton-like catalysts, for example, iron sulfides, 5 iron oxides, 6 manganese oxides, 7 and such similar composites. [8][9][10][11] However, the synthesis of these catalysts always required complicated procedures with chemical/energy consumption, whereas natural iron-bearing clays, [12][13][14][15] for example, sediments of minerals as montmorillonite, nontronite from oceans, rivers, and groundwater are of great abundance, and ought to have great potential in Fenton reactions or AOPs.…”