Methylene blue and methyl orange removal using green rust as a low-cost, sustainable adsorbent and photocatalyst.

Green rust (GR), a mixed-valent iron mineral from the layered double hydroxides family, has gained attention for its potential in environmental and energy applications. Despite its widespread presence and possible role in life's evolution, GR's susceptibility to oxidation has limited its practical use. In this study, we prepared a stabilized GR, synthesized through a one-pot solvothermal method using iron(iii) chloride and glycerol.

Expression of concern: Acceleration of ammonium phosphate hydrolysis using TiO microspheres as a catalyst for hydrogen production.

Expression of concern for 'Acceleration of ammonium phosphate hydrolysis using TiO microspheres as a catalyst for hydrogen production' by Ayman H. Zaki , , 2020, , 2080-2086, https://doi.org/10.

Acceleration of ammonium phosphate hydrolysis using TiO microspheres as a catalyst for hydrogen production.

Titania microspheres are considered an adequate material with low cost and easily attainable pathways, and can be utilized in photocatalytic H production to solve the energy crisis. Spherical porous titanium dioxide materials, with nanostructure composition, were chemically synthesized from titanate nanotubes a simple hydrothermal technique, then added as a catalyst to accelerate the route of ammonium phosphate hydrolysis for hydrogen production. The mechanism of sphere formation from titanate nanotubes is elucidated in detail through the current study.