Synthesis, structure, magnetism and photocatalysis of α-Fe₂O₃nanosnowflakes

Abstract

α-Fe2O3 nanosnowflakes exhibit enhanced coercivity and improved photocatalytic performance for organic dyes.

Controlled Morphological Transformation, Photocatalytic Properties, and Electrocatalytic OER Performance of Fe-MOF Nanopolyhedra

“…Figure a shows the absorption spectra of the series of CV solutions (50 mL, 20 mg/L) in the presence of Fe-MOF-1 (10 mg) with H 2 O 2 (0.5 mL, 30%) under visible light with different irradiation times from 0 to 24 min. The maximum absorption of CV before irradiation is about 589 nm . When the light was on, the maximum absorption decreases sharply from 3.484 to 1.788.…”

“…The maximum absorption of CV before irradiation is about 589 nm. 47 When the light was on, the maximum absorption decreases sharply from 3.484 to 1.788. With the extension of irradiation time, the maximum absorption gradually decreases from 3 to 21 min and finally tends to zero at 24 min.…”

Facile Preparation of Hierarchically Porous g‐C3N4 as High‐Performance Photocatalyst for Degradation of Methyl Violet Dye

“…Photocatalytic degradation is considered to be a promising technology because ofits safe and sustainability [6] . It is reported that methyl violet was degraded by catalysts such as metal oxide (MnO 2 , [7] Mg‐doped ZrO 2 [8] and α‐Fe 2 O 3 , [9] ), metal composite (TiO 2 /ZnS, [10] Fe 0 @Guargum‐crosslinked‐soyalecithin hydrogel, [11] Co(II) thiocyanate complex [12] ), metal organic catalysts [13] and perovskite [14] . However, these materials are limited to metal‐involving compounds and some materials require complexpreparation process.…”

2D/2D step-scheme α-Fe2O3/Bi2WO6 photocatalyst with efficient charge transfer for enhanced photo-Fenton catalytic activity

“…On the one hand, as a photo-Fenton catalyst, α-Fe2O3 could initiate the photo-Fenton reaction under almost neutral conditions, eliminating the need to adjust the pH value at all times in the reaction process. On the other hand, Fe 3+ could be reduced to Fe 2+ by the electrons on the conduction band (CB) of α-Fe2O3, which reduces the loss of Fe 2+ and the production of solid sludge [14][15][16]. Nevertheless, a single α-Fe2O3 photocatalyst still exhibit poor photocatalytic activity due to the migration kinetics and sluggish separation of photogenerated carriers [17][18][19][20].…”