Research On Removal Of Organic Pollutant With The Joint Of Adsorption And Electricity Catalytic

Under different conditions prepare hierarchical mesoporous carbon（MMC） and three kinds of mesoporous manganese dioxide. These materials were characterized by X-ray diffraction（XRD）, scanning electron microsopy（SEM）, specific surface area, and bore diameter. Using CMK-3, cubic Ia3 d, hierarchical mesoporous carbon（MMC） and three kinds of mesoporous manganese dioxide as adsorbents, the effects of parameters such as pH value and temperature, on the removal of methylene blue（MB） from aqueous solution were investigated. In addition, the adsorption thermodynamic and kinetics were also studied. The adsorption parameters for Langmuir and Freundlich isotherm models were determined for six adsorbent. The adsorption kinetics was tested with pseudo-first-order and pseudo-second-order reaction model. Besides, the thermodynamic constants of the adsorption process △H⁰,△S⁰and△G⁰ were evaluated. The results showed that Langmuir model and pseudo-second-order kinetic model fit the experimental data more adequately; the adsorption process of MB is spontaneous endothermic process; CMK-3 and A-MnO₂ have the strongest adsorption capacity, the maximum adsorption quantities are 3067mg·g^-1 and 153 mg·g^-1, respectively.Using tabletting method prepared two phase porous anodes with the same ratio of A-MnO₂ and graphite while the titanium substrate was treated by three different electrolytes. In addition, three kinds of two phase porous cathodes were prepared with different ratio of CMK-3 and A-MnO₂. Discuss the anode system, cathode system and their coordination effect on degradation of methylene blue simulated wastewater. The results showed that the anode had excellent performance when the titanium substrate was handled by electrolyte use ammonium biphosphate as solute, water as solvent. Besides, the cathode had excellent performance when ratio of CMK-3 and A-MnO₂ is 1:1. Using the above electrode combined into a new electrode system. To get the same degradation, the new electrode system was faster than the single anode, cathode system.