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Open AccessArticle

New Insights into the Interaction between Graphene Oxide and Beta-Blockers

College of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, China
Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation, Xi’an 710054, China
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1429;
Received: 17 July 2019 / Revised: 24 August 2019 / Accepted: 27 September 2019 / Published: 9 October 2019
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 π–π 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. View Full-Text
Keywords: magnetic graphene oxide; propranolol; Fe3O4; adsorption magnetic graphene oxide; propranolol; Fe3O4; adsorption
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Deng, Y.; Li, Y.; Nie, W.; Gao, X.; Liu, S.; Tan, X.; Chen, M.; Hou, D. New Insights into the Interaction between Graphene Oxide and Beta-Blockers. Nanomaterials 2019, 9, 1429.

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