Application of modified green algae Nannochloropsis sp. as adsorbent in the simultaneous adsorption of Methylene Blue and Cu(II) cations in solution

Abstract Biomass of algae is a very potent adsorbent for absorbing aqueous waste containing heavy metals and organic dyes. This study purposes to confirm the ability adsorbents from green Nannochloropsis sp. modified with silica (ASN) followed by coating magnetite particles (ASN-MPs) absorb simultaneously mixture Methylene Blue (ME) Cu(II) cations in solution. Simultaneous sorption ME ASN ASN-MPs was carried out batch method interaction pH condition 7, contact time 90 min, initial concentrations (0.1–1.0 mM). Based on adsorption data, have greater rate capacity ( q m ) compared at same concentration. The values bi-component cation were 1.39 × 10 − 1 5.32 mmol g , respectively, binary Langmuir isotherm constant than ME. Modified matrix particle an that has high effectiveness collective cations. Therefore, these can be used mixtures dyes are cationic