Enhanced removal of naproxen from wastewater using silica magnetic nanoparticles decorated onto graphene oxide; parametric and equilibrium study. Issue 15 (13th October 2018)

• Record Type: Journal Article
• Authors: Mohammadi Nodeh, Mohammad Kazem; Radfard, Morteza; Zardari, Liaquat Ali; Rashidi Nodeh, Hamid
• Is Part Of: Separation science and technology. Volume 53:Issue 15(2018)
• Page Start: 2476
• Page End: 2485
• Publication Date: 2018-10-13
• Subjects: Silica magnetic nanoparticles -- graphene oxide -- non-steroidal anti-inflammatory pharmaceutical drug -- naproxen removal -- isotherms study; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2018.1457054
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: The present study describes the synthesis of silica and magnetic nanoparticle-decorated graphene oxide (GO-MNPs-SiO2 ) and its application as an adsorbent for the removal of naproxen from wastewater. Nanocomposite was characterized utilizing FT-IR spectroscopy, FESEM microscopy, EDX and XPS spectroscopy. Under the optimum conditions, a high adsorption capacity (31 mg g −1 ) was obtained toward naproxen at pH 5. The adsorption process was evaluated using isotherms; the Freundlich isotherm suggested a multilayer adsorption pattern for naproxen. Free energy confirmed a physisorption mechanism between naproxen and adsorbent. Lastly, the field application was performed in wastewater which obtained high removal efficiency percentages (83–94%).