Heterogeneous catalysts were used in several production processes for the synthesis of
different products such as chemicals, drugs, energy resources, fuels and other specific …

Abstract The 1, 4‐conjugated addition of nitrogen centered nucleophiles to electron‐
deficient alkenes, historically called the aza‐Michael addition, is one of the most significant …

This paper describes the fabrication of composites beads based on functionalized SBA-15
materials encapsulated in calcium alginate (ALG) which are employed for removing …

Mesoporous silica MCM-41 was synthesized hydrothermally and then impregnated by
different transition metals (such as Cr, Cu, Fe and Zn). The modified materials in calcined …

This work involves the preparation of mesoporous silica SBA-15 functionalized by different
amines in order to stabilize the copper nanoparticles and using the obtained materials as …

In this work, a new nanocomposite based on crosslinked Glycerol Dimethacrylate (GDMA)
and the mesoporous silica MCM-41 was prepared. The GDMA is first synthesized by the ring …

In the present study, new para-aminobenzoic acid (PABA) grafted on the silica-coated
magnetic nanoparticles (Fe3O4@ SiO2@ Pr-PABA) was prepared and its structure was …

This paper focuses on the preparation and modification of zeolite Y by different methods.
The obtained samples were characterized by X-ray diffraction, X-ray fluorescence, nitrogen …

This paper focuses on the modification of mesoporous silica MCM-41 by different
aminosilanes in order to stabilize metallic copper nanoparticles. The obtained samples were …

Mesoporous silica SBA-15 was functionalized with various amines and then doped with
copper II cation (Cu 2+). The modified materials were tested for the retention of CO 2 at room …