Aliakbar Dehno Khalaji - Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran
Negin Mohammadi - Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran
Moslem Emami - Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran

Nickel oxide nanoparticles were prepared using solid-state thermal decomposition of NiCl۲ at the presence of maleic acid at ۶۰۰°C, characterized by FT-IR spectroscopy, XRD, FE-SEM, and applied as a new adsorbent for the removal of methyl green (MG) from aqueous solution. FT-IR and XRD results confirmed the preparation of cubic NiO nanoparticles. SEM image showed that NiO nanoparticles have a wide size distribution from ۵۰ to ۲۰۰ nm. The pH of the solution, adsorbent dosage, and contact time effect on MG removal efficiency were considered. The uptake of MG was determined to be >۹۶% in ۶۰ min and adsorbent dosage of ۰.۰۲ g

Nickel Oxide, Nanoparticles, Thermal decomposition, Methyl green, Removal