The synthesis of graphitic carbon nitride (g-CN) doped with s-block metals is described. The materials were synthesized via thermal polycondensation of cyanamide and the appropriate metal chloride. The inclusion of the metal precursor strongly influenced the surface chemistry features as well as the textural, morphological, and structural properties of the g-CN. The doping of g-CNwith s-block metals markedly enhanced its adsorption performance, which was studied during the removal of two model solutes (methyl blue and copper ions) from aqueous solutions. The maximum adsorption capacity for the organic dye was increased by 680 times after the doping process. The uptake of copper(II) increased ca. 30 times for the doped g-CN. The improvement of the adsorption performance is discussed in terms of the surface chemistry and textural features.

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Phone: þ48 22 55 26 416, Fax: þ48 22 822 59 96Combustion synthesis is known as a cost-effective technique to produce many novel ceramic nanomaterials such as nitrides, carbides, and intermetallic compounds. Herein, we report an extremely fast chemical transformation of magnesium-magnesium oxalate (Mg/MgC 2 O 4 ) mixtures into solid products containing different nanocarbons and MgO. Despite a wide range of molar ratios of reactants all combustions, carried out in Ar at 1 MPa, were successful. The solid products were chemically purified (leaching of unreacted Mg and MgO) and characterized by XRD, SEM/EDX, TEM, DSC, and Raman spectroscopy. The residue contained mostly layered (circa several nm thick) carbon petal-like nanostructures and carbon-coated MgO.

A novel magnetic carbon composite based on carbon-encapsulated iron nanoparticles and waste poly(ethylene terephthalate) was synthesized.

The synthesis of novel mobile composite adsorbents dedicated to the efficient removal of heavy metal ions from aqueous solutions is presented.