Abstract
This study is aimed at studying the adsorption of methylene blue (MB) from aqueous solutions by nickel ferrite/graphene oxide (NGO) nanocomposite. The nanocomposite was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, energy dispersive X-ray, Brunauer-Emmett-Teller-specific surface area, and vibrating sample magnetometer analyses. The interactive effects of critical variables including pH, initial concentration, and contact time on the adsorption capacity of NGO for MB were studied using response surface methodology (RSM) according to composite central design. In RSM models, the predicted values agreed well with verification experiments, with a high correlation coefficient of 0.9887. The adsorption process followed the pseudo-second-order kinetic and Langmuir isotherm models. The maximum capacity for adsorption of MB onto NGO was found to be 476.19 mg/g. Based on these results, NGO has the potential as an efficient adsorbent for the removal of MB from water.
Highlights
Water pollution has been taken into account as an insurmountable problem by the rapid industrialization occurring in many parts of the world
In the nickel ferrite/graphene oxide (NGO) and NiFe2O4 spectrum, the absorption bands were attributed to Ni–O (O–Mtet) and Fe–O (O–Moct) linkages, which appeared at 624.33 and 434.78 cm-1
The diffraction peak of Graphene oxide (GO) did not exist as shown in Figure 2(b) due to the high diffraction intensities of NiFe2O4 particles overwhelming the weak GO peak. These results indicate that the order of crystal structures in GO remained after the attachment with nickel spinel ferrites (NF)
Summary
Water pollution has been taken into account as an insurmountable problem by the rapid industrialization occurring in many parts of the world. The release of contaminants resulting from industrial activities into water reservoirs has negative impacts on people’s health as well as afflicting harmful damage to living organisms [1]. Many industrial fields like textile, printing, painting, pesticides, or even fertilizers are common pollutants of wastewater. This poses a serious threat to ecosystems, especially with aquatic creatures, as well as human well-being like carcinogenic agents [2]. The removal of MB plays an essential role in protecting natural habitat and the preservation of human health [3]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
