Porous Magnetic Carbon Composite Materials Preparedfor Removal Of Methylene Blue

Dyes were applied in the industries of food, medicine and textiles. The dyes effluents are the major origin of water pollutant. More than 15% dyes was let out without any handles. Most of the dyes were toxic, even cancer genic, and especially were dangerous to the living beings. The methods of removal the dyes generally contain biological methods, chemical methods and physical methods. The chemical methods contain the advance oxidation processes, which was popular with it can degradate the dyes thoroughly, and with not the secondary pollution. The novelty magnetic carbon materials can be the effective adsorbents and catalysts as catalytic degradate the dyes. Combine the carbon precursor with iron precursor by physical mixing, or covalent bonds and ionic bonds. Carbonize mixture to high temperatures under the protection of inert gas. The iron-carbon composites were prepared. Among the magnetic carbons, the active carbon can enrich the dyes in the water, the iron composites not only can activate the oxidants produce the free radicals, but also can be collected from the water with the magnet easily with the magnetic property, carry on the recycles. In this article, preparation three novelty different patterns magnetic carbons, and studied the prepared conditions effects on the magnetic carbons exhaustively. Explored the effects of applied the magnetic carbons on removal methylene blue of the polluted water.1. The powder magnetic carbon was prepared from raw peanut shells, applying in the study of adsorbs and degradates the methylene bluePowder magnetic carbons composites were prepared from agricultural waste peanut shells and Ferric ammonium oxalate via a simple impregnation and carbonization process. Character the magnetic materials of the morphology, magnetic properties, specific areas and components. The magnetic carbon material was used as catalyst of heterogeneous Fenton reaction to remove methylene blue with the help of persulfate in waste water. The results indicated that both the removal rate and removal efficiency of this catalytic system are very excellent. The catalyst retained its activity and low iron dissolve after seven reuses, indicating its good stability and reusability. It is inexpensive because it consists mainly of agricultural waste. Its porosity contributed to its high activity, which was achieved without any additional activation process. These indicating that the catalyst is potentially useful in the treatment of wastewater.2. The porous magnetic carbon spheres were prepared from the commercial chelating resin with the iron exchange method, applying in the study of degradates the methylene bluePorous magnetic carbon spheres were prepared from carbonized commercial chelating resin composites derive from ethylenediaminetetraacetic acied modified macroporous polystyrene resin, and then loaded with iron composites via ion exchange. Character the magnetic materials of the morphology, magnetic properties, specific areas and components. The porous magnetic carbon spheres were then used, in the existence of hydrogen peroxide and hydroxylamine; with a view to remove methylene blue from the aqueous solution by catalyze a heterogeneous Fenton reaction. The catalyst indicated excellent removal rates and good reusability. The raw materials were industrial, it is potential of applied it in the quickly degradate the pollutant industrially.3. The porous magnetic carbon fibers were prepared with the in-situ assemble Fe-BTC on the bamboo fire surface, applying in the study of quickly adsorb the methylene blueMagnetic porous carbon fiber is prepared through a novel self-template strategy based on bamboo fiber. The bamboo fiber was fabricated by step-by-step in-situ assembly strategy, the surface was formed the metal-organic frameworks (Fe-BTC) on it. The magnetic carbon fibers possess hierarchical porous structure. Character the magnetic materials of the morphology, magnetic properties, specific areas and components. We highlight the exceptional behavior of this material as a magnetically separable and recyclable super adsorbent for removal and recovery of environmental pollutants. After six recyclables, the removal efficiency can reach 80%. The magnetic porous carbon fiber is potential in adsorbed removal organic polluants quickly.