期刊
SEPARATION SCIENCE AND TECHNOLOGY
卷 53, 期 15, 页码 2476-2485出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2018.1457054
关键词
Silica magnetic nanoparticles; graphene oxide; non-steroidal anti-inflammatory pharmaceutical drug; naproxen removal; isotherms study
资金
- Tehran Province Water & Wastewater Co., (Tehran, Iran)
- Young Researchers and Elite Club (Science and Research Branch, Islamic Azad University, Tehran, Iran)
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%).
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