Magnetically modified Posidonia oceanica biomass as an adsorbent for organic dyes removal
Grant Agency of the Czech Republic (Project No. 13-13709S)
Ministry of Education, Youth and Sports of the Czech Republic (project LO1305)
Magnetically modified Posidonia oceanica sea grass dead biomass was employed as an adsorbent of organic dyes. The adsorption of seven water-soluble organic dyes was characterized using Langmuir adsorption model. The highest calculated maximum adsorption capacity was found for Bismarck brown Y (233.5 mg g-1), while the lowest capacity value was obtained for safranin O (88.1 mg g-1). The adsorption processes followed the pseudo-second-order kinetic model and the thermodynamic studies indicated spontaneous and endothermic adsorption.
Posidonia oceanica, Neptune balls, magnetic biomass, organic dyes, adsorbent.