Adsorptive removal of noxious atrazine using graphene oxide nanosheets: Insights to process optimization, equilibrium, kinetics, and density functional theory calculations

Removal of Antidiabetic Pharmaceutical (Metformin) Using Graphene Oxide Microcrystalline Cellulose (GOMCC): Insights to Process Optimization, Equilibrium, Kinetics, And Machine Learning

“…X-ray diffraction (XRD) patterns seem to reveal the crystalline nature of the carbon atoms. Graphite, which has a different multilayered nature at 2θ ≈ 25.2° and 17.9° it showing the graphitic domains in crystalline form, which is shifted and disappeared to form oxide groups of peaks near 2θ = 10.2° that seem to be completely oxidized from the formation of GO . This means that the graphite terms in complete oxidation of GO in the exfoliation method has the curtain number of sheets in oxidizing nature.…”

“…These results support the formation of the sp 2 carbon atom frame in GO. Combination of GO with cellulose created GOMCC spectrum with peaks with absence of amorphous cellulose on the adsorbent’s surface removed by acid hydrolysis, exposing more C–OH, C–O–C, and C–C bonds, resulting in higher absorbency at 3433, 1386, and 1052 cm –1 , respectively …”

“…Graphite, which has a different multilayered nature at 2θ ≈ 25.2°and 17.9°it showing the graphitic domains in crystalline form, which is shifted and disappeared to form oxide groups of peaks near 2θ = 10.2°that seem to be completely oxidized from the formation of GO. 36 This means that the graphite terms in complete oxidation of GO in the exfoliation method has the curtain number of sheets in oxidizing nature. GOMCC seems to be present, based on the high intensity peak of O 2 observed at 2θ = 10.07°, which contains functional groups.…”

“…Combination of GO with cellulose created GOMCC spectrum with peaks with absence of amorphous cellulose on the adsorbent's surface removed by acid hydrolysis, exposing more C−OH, C−O−C, and C−C bonds, resulting in higher absorbency at 3433, 1386, and 1052 cm −1 , respectively. 36 The alteration of characteristic peaks of MFM adsorbed onto GOMCC, indicating that the sorption was physisorption (pore diffusion) rather than chemisorption. After MFM adsorption, modification of the functional groups of GOMCC were found in water O−H stretching (at 3420), bending C−H stretching (at 2926), and carbonyl C�O (at 1386) were entirely eliminated.…”

Application of the Zn0.5Mn0.5Fe2O4–PMMA nanocomposite for efficient removal of complex organic pollutants

“…15 Each technology is bound by its physicochemical constraints and chemical requirements. Among these, adsorption has emerged as a favorable approach for treating dye-containing effluents due to its high efficiency 16 and cost-effectiveness and no secondary pollution generation. [17][18][19] Ferromagnetic nanocomposites (NCPs) have gained great attention recently due to their unique spatial coordinate of z, high adsorption capacity, 20 and high surface area-to-volume ratio.…”