Constructing Dual Cocatalysts of NiP-NiS-Decorated TiO for Boosting Photocatalytic H Evolution.

The loading of cocatalysts is an effective approach to optimize the separation of carriers during photocatalytic processes. Among them, cocatalysts often work independently during the photocatalytic production of H. However, an investigation of the synergistic effect of dual cocatalysts is beneficial for further promoting photocatalytic H production activity.

A direct Z-scheme NiCoO/ZnInS heterojunction for highly efficient visible-light-driven H evolution.

Exploiting efficient and stable photocatalysts is the primary goal of photocatalytic water splitting for H production. In this work, a sea urchin-like bimetallic NiCoO-decorated ZnInS heterojunction was fabricated a solvent evaporation method. Investigation shows that the introduction NiCoO can expand the UV-vis absorption range, enhance the absorption intensity, promote the charge separation, decrease the charge transfer resistance, induce more active sites, and decrease the H evolution overpotential of the composite.

Freeze-Dissolving Method: A Fast Green Technology for Producing Nanoparticles and Ultrafine Powder.

A new technology, a freeze-dissolving method, has been developed to isolate nanoparticles or ultrafine powder and is a more efficient and sustainable method than the traditional freeze-drying method. In this work, frozen spherical ice particles were produced with an aqueous solution of sodium bicarbonate or ammonium dihydrogen phosphate at various concentrations to generate nanoparticles of NaHCO or (NH)(HPO). The freeze-drying method sublimates ice, and nanoparticles of NaHCO or (NH)(HPO) in the ice templates remain.