An organic–inorganic hybrid nanomaterial composed of a Dowson-type (NH<sub>4</sub>)<sub>6</sub>P<sub>2</sub>Mo<sub>18</sub>O<sub>62</sub>heteropolyanion and a metal–organic framework: synthesis, characterization, and application as an effective adsorbent for the removal of organic dyes
Akram‐Alsadat Hoseini, Saeed Farhadi, Abedien Zabardasti, Firouzeh Siadatnasab
Abstract
within 3 min. These results confirmed that this adsorbent is applicable in a wide pH range of 2-10. The nanohybrid showed rapid and selective adsorption for cationic MB and RhB dyes from MB/MO, MB/RhB, MO/RhB and MB/MO/RhB mixed dye solutions. The equilibrium adsorption data were better fitted by the Langmuir isotherm. Kinetics data indicate that the adsorption of the dye follows a pseudo-second order kinetics model. Also, this material could be effortlessly separated and recycled without any structural modification. Accordingly, it is an efficient adsorbent for removing cationic dyes.
Topics & Concepts
PolyoxometalateRhodamine BMethyl orangeAdsorptionNuclear chemistryNanomaterialsFourier transform infrared spectroscopySpecific surface areaMaterials scienceAqueous solutionRaman spectroscopyScanning electron microscopeInfrared spectroscopySilicotungstic acidInorganic chemistryChemical engineeringChemistryNanotechnologyPhotocatalysisOrganic chemistryCatalysisOpticsEngineeringComposite materialPhysicsPolyoxometalates: Synthesis and ApplicationsMetal-Organic Frameworks: Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis