Journal
NANOMATERIALS
Volume 9, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/nano9101429
Keywords
magnetic graphene oxide; propranolol; Fe3O4; adsorption
Categories
Funding
- National Nature Science Foundation of China [21806128]
- Basic Research Plan of Natural Science in Shaanxi Province-General Project (Youth) [2018JQ2030]
- Research Cultivation Fund of Xi'an University of Science and Technology [201720]
- Doctoral Scientific Research Foundation of Xi'an University of Science and Technology [2016ZX217]
- Scientific Research Program-Shaanxi Provincial Education Department [17JK0507, 17JK0492]
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As a nano-adsorbent, magnetic graphene oxide (GO/Fe3O4) was synthesized to potentially adsorb propranolol (PRO) from water. The synthetic material was characterized by SEM, TEM, VSM, FTIR, XRD, zeta potential, and XPS. The environmental factors, such as pH, humic acid concentration, PRO concentration, and contact time, were investigated regarding their effect on the adsorption process. The kinetics data fitted the pseudo first-order and second-order kinetics equations. The Langmuir equation, the Freundlich equation, and the Sips equation were used to analyze the adsorption isotherms. Electrostatic attraction, hydrogen bonding, and the pi-pi interaction all contributed to the adsorption process of PRO onto GO/Fe3O4. The discovery of this study emphasized the feasibility of GO/Fe3O4 removal of PRO and expanded the scope of the application of GO.
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