Cylindrical-design, dehydration, and sorption properties of easily synthesized magnesium phosphosilicate nanopowder

Nanoparticles of magnesium phosphosilicate (MgPSi) with enhanced sorption properties have successfully synthesized using (NH4)(2)HPO4 as precipitating media. Structure, morphology, and dehydration changes of the synthesized nanopowder were detected using differential thermal analysis (DTA)-thermal gravimetric analysis, scanning electron microscopy (SEM), X-ray powder diffraction, Fourier transform infrared, and X-ray fluorescence. Studies appeared that, the MgPSi have semicrystalline stain with diameter of similar to 40 nm. SEM image indicated that MgPSi particles were distributed as nanoclumps of cotton-wool morphology after heating up to 400 degrees C. The order and activation energy of main dehydration processes were estimated from DTA-thermogram. Evaluation of MgPSi as new adsorbent was investigated for Cu2+, Ni2+, and Co2+ through a batch technique. MgPSi nanopowder was fabricated into adsorption surface by pressing into cylindrical beads. The kinetic adsorption of Cu2+, Ni2+, and Co2+ onto MgPSi can be qualified by a pseudo-second-order model very well. The adsorption of Cu2+, Ni2+, and Co2+ onto MgPSi is strongly relying on pH and also temperature. The adsorption isotherms are fitted well by Freundlich model. This cylindrical layout make it has an excellent physical stability, soft to handle and provided a pathway to fulfill the target of adsorption and recycling ability than the powder form.