In this study, the removal of cadmium and lead ions from aqueous solution by nanocrystalline magnetite was investigated. The nanocrystalline magnetite was synthesized by mechanochemical activation of hematite in a high energy planetary mill in argon atmosphere for 45 hours. The ability of the synthesized nanocrystalline magnetite for removal of Cd(II) and Pb(II) from aqueous solutions was studi...

Merging of photo- and mechanochemical activation permitted studying the role of eosin Y in the borylation of aryldiazonium salts in a ball mill. Simultaneous neat grinding/irradiation of the reactants and the photocatalyst led to the formation of boronates in a molten state. On the other hand, the catalyst-free liquid-assisted grinding/irradiation reaction also led to product formation, featuri...

• The surface plays an important role in oligomerization of ?-pinene by providing reactive oxygen sites. Shear stress is the key driver mechanochemical reactions. can activate multiple reaction pathways that are not accessible thermally. induces physical deformation reacting species to make them more reactive. Mechanochemical reactions play a critical many manufacturing, tribological, and synth...

We communicate two mild, solvent-free mechanochemical coupling transformations of CF3 group with nitro compounds into amides or Schiff bases employing Ytterbia as a catalyst. This process proceeds via C−F bond activation, accompanied utilisation Si-based reductants/oxygen scavengers – reductants the group. The scope and limitations disclosed methodologies are thoroughly studied. To best our kno...

The ball-mill-based mechanochemical activation of metallic copper powder facilitates solvent-free alkyne-azide click reactions (CuAAC). All parameters that affect reaction rate (i.e., milling time, revolutions/min, size and milling ball number) have been optimized. This new, efficient, facile and eco-friendly procedure has been tested on a number of different substrates and in all cases afforde...

Replacement of cement with supplementary cementitious materials (SCMs) is a proven method to reduce clinker in and contribute decreased CO2 emissions. Natural clays are commonly occurring that do not possess pozzolanic activity their original state. Mechanochemical activation (MCA) can be an alternative sustainable enhance reactivity. In this study, the reactivity three natural clays, originati...