Designing high-efficiency photocatalyst for photocatalytic water splitting is a considerable challenge. Herein, new Mn3O4/g-C3N4 p-n heterostructure prepared by an in-situ growth method. The introduction of Mn3O4 can enhance light absorption ability g-C3N4. exhibits outstanding activity hydrogen evolution reaction (HER) efficiency ~2700 ?mol g?1h?1 at ? > 420 nm. For the separate reactions H2 a...

New magnetic Mn3O4/g-C3N4 and Ag2MnO4/g-C3N4 nanocomposites have been synthesized based on Mn(II) Schiff base complex used for sonodegradation of methylene blue (MB) methyl orange (MO) dyes in aqueous solution. Ag2MnO4 nanoparticles (NPs) from Mn3O4 NPs AgNO3 under ultrasonic irradiation the first time. The results indicate that method presence is better than solar degradation processes. photod...

Wastewater treatment is indispensable as wastewater can lead to adverse health effects and deteriorate the quality of life on earth. Photocatalysis a facile methodology address this issue. In study, nanocomposites (NCs) manganese oxide (Mn3O4) nickel (NiO) were synthesized in different weight ratios via solid-state reaction route. Structural properties, optical surface morphology, functional gr...

We, for the first time, report that many Mn oxides (Mn3O4, α-Mn2O3, β-MnO2, CaMnO3, Ca2Mn3O8, CaMn3O6 and CaMn4O8) in the presence of cerium(IV) ammonium nitrate, in the water oxidation, convert to layered Mn oxide. This layered Mn oxide is an efficient water oxidizing catalyst.

The effects of an exposure to three mass-produced metal oxide nanoparticles-similar in size and specific surface area but different in redox activity and solubility-were studied in rat alveolar macrophages (MAC) and epithelial cells (AEC). We hypothesized that the cell response depends on the particle redox activity and solubility determining the amount of reactive oxygen species formation (ROS...

Advances in aqueous potassium-ion batteries (APIBs) are hindered by the lack of cathode materials with fast K+ transport kinetics and stable structure during intercalation/deintercalation. Herein, a birnessite/spinel Mn3O4 heterostructure...

A facile, solution-phase route to mass fabrication of one-dimensional single crystalline Mn(3)O(4) nanowires with a unique core/sheath heteronanostructure, controlled aspect ratios, and narrow diameter distribution was reported. The single crystalline Mn(3)O(4) nanowires have considerably large coercivities (H(C) > 1 T) at low temperatures.