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

Abstract

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 R2 = 0.9965 is superior than the Freundlich model R2 = 0.99628 and Temkin model R2 = 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 R2 = 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.

Adsorption efficiency of crystal violet from the aqueous phase onto a carbonaceous material prepared from waste cotton and polyester

“…In conclusion, the adsorption of CV onto the prepared adsorbents was controlled by multiple processes that involved both physical and chemical adsorption. 37…”

“…In conclusion, the adsorption of CV onto the prepared adsorbents was controlled by multiple processes that involved both physical and chemical adsorption. 37 A previous study reported that the hydrogen bonding, electrostatic interaction, and p-p interactions were related to the adsorption mechanism of 4-nitroaniline onto MCM-48, 37 which indicates that the relationship between adsorbent surface roughness and contact angle is important to elucidate the adsorption mechanism in detail. In this study, the obtained results suggest that the properties of the VCP1000 and/or VC1000 surface signicantly affect the adsorption mechanism of CV from aqueous phases.…”

Olive stone as an eco-friendly bio-adsorbent for elimination of methylene blue dye from industrial wastewater

“…A growing worldwide interest has focused on developing wastewater treatment technologies to address the ever-increasing pollutants released into water, including industrial dyes 1 – 5 . The world uses about 7 million tonnes of dyes annually 6 .…”

Utilization of Loaded Cobalt onto MCM-48 Mesoporous Catalyst as a Heterogeneous Reaction in a Fixed Bed Membrane Reactor to Produce Isomerization Product from n-Heptane

“…For instance, petrochemical processes such as hydrocracking and catalytic cracking widely utilize synthetic zeolites with mesoporous structures (e.g., MCM-41) as the catalysts. Zeolite membrane sieves are widely used as an alternative to fractionation for recycled normal paraffins owing to it being more energy efficient and having a selective separation technique [19][20][21][22][23][24]. It is defined as a substance that is used to separate gas or liquid mixture by accelerating the reaction through diminishing the activation energy.…”