Hydrothermal synthesis of α-Fe2O3/g-C3N4 composite and its efficient photocatalytic reduction of Cr(VI) under visible light

One‐Step Transformation from Cu2S Nanocrystal to CuS Nanocrystal with Photocatalytic Properties

“…The obtained results indicated that the initial pH is one of the momentous parameters, which has great influence on the reduction dynamics. At lower pH, the Cr(VI) species exist in the form of HCrO 4 − , and the main existing form of Cr(VI) changed from HCrO 4 − to CrO 4 2− with the increase of pH value . Meanwhile, the surface of catalysts is highly protonated by H + with more positive electrical properties at low pH, which is benefit for the accumulation of HCrO 4 − .…”

CuMnOS Nanoflowers with Different Cu+/Cu2+ Ratios for the CO2-to-CH3OH and the CH3OH-to-H2 Redox Reactions

“…Under the UV light, TiO 2 -CNT with a W 2 /W 1 value of 0.013 reduced 100% Cr(VI) in 40 min37. Under the visible light, Fe 2 O 3 /g-C 3 N 4 with a W 2 /W 1 value of 0.014 reduced 100% Cr(VI) in 15 min38. With no light illumination, diamino pyridine-modified grapheme oxide with a W 2 /W 1 value of 0.5 absorbed 94.5% Cr(VI) in 90 min at the help of the electrostatic force39.…”

Novel magnetic g-C3N4/α-Fe2O3/Fe3O4 composite for the very effective visible-light-Fenton degradation of Orange II

“…Many attempts have been made to fabricate a-Fe 2 O 3 /g-C 3 N 4 composites for photodegrading organic dyes using visible light. 21,22 However, the g-C 3 N 4 /a-Fe 2 O 3 heterogeneous catalyst is not appropriate for practical use because it is difficult to remove from suspension and reuse. Magnetically separable photocatalysts have attracted considerable interest because they can be removed from suspensions easily.…”