Applying MCM-48 mesoporous material, equilibrium, isotherm, and mechanism for the effective adsorption of 4-nitroaniline from wastewater.

Autor: Ali NS; Materials Engineering Department, College of Engineering, Mustansiriyah University, Baghdad, Iraq., Harharah HN; Department of Chemical Engineering, College of Engineering, King Khalid University, 61411, Abha, Kingdom of Saudi Arabia., Salih IK; Department of Chemical Engineering and Petroleum Industries, Al-Mustaqbal University College, Babylon, 51001, Iraq., Cata Saady NM; Department of Civil Engineering, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada., Zendehboudi S; Department of Process Engineering, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada., Albayati TM; Department of Chemical Engineering, University of Technology-Iraq, 52 Alsinaa St., P.O. Box 35010, Baghdad, Iraq. Talib.M.Naieff@uotechnology.edu.iq.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 Jun 17; Vol. 13 (1), pp. 9837. Date of Electronic Publication: 2023 Jun 17.
DOI: 10.1038/s41598-023-37090-4
Abstrakt: In this work, the MCM-48 mesoporous material was prepared and characterized to apply it as an active adsorbent for the adsorption of 4-nitroaniline (4-Nitrobenzenamine) from wastewater. The MCM-48 characterizations were specified by implementing various techniques such as; scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDAX), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area, pore size distribution (PSD), and Fourier transform infrared (FTIR). The batch adsorption results showed that the MCM-48 was very active for the 4-nitroaniline adsorption from wastewater. The adsorption equilibrium results were analyzed by applying isotherms like Langmuir, Freundlich, and Temkin. The maximum experimental uptake according to type I Langmuir adsorption was found to be 90 mg g -1 approximately. The Langmuir model with determination coefficient R 2  = 0.9965 is superior than the Freundlich model R 2  = 0.99628 and Temkin model R 2  = 0.9834. The kinetic adsorption was investigated according to pseudo 1st order, pseudo 2nd order, and Intraparticle diffusion model. The kinetic results demonstrated that the regression coefficients are so high R 2  = 0.9949, that mean the pseudo 2nd order hypothesis for the adsorption mechanism process appears to be well-supported. The findings of adsorption isotherms and kinetics studies indicate the adsorption mechanism is a chemisorption and physical adsorption process.
(© 2023. The Author(s).)
Databáze: MEDLINE
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