Preparation And Catalytic Performance Of Activated Carbon Fibers Supported Iron Phthalocyanine

Water,as one of the most important resources of human existence,has an irreplaceable status in nature.With the development of society,water pollution and safety are attracting more and more attention.Industrial wastewater is the largest pollution source of water pollution,such as conjugated dyes,chlorinated aromatic compounds,antibiotics.In recent years,as a new type of pollutants,antibiotics are continuously discharged into the water body and persist in the water body.（AOPs）has been successfully applied to many kinds of organic pollutants such as antibiotics and antibiotics in natural water body and sewage water because of its wide range of application,fast reaction rate and strong oxidizing ability.It is widely used in chemical industry,biology,biology and other biodegradable technologies.Due to the unique nature of antibiotics,the general method is difficult to be degraded,its accumulation in the environment will cause damage to the ecological balance of micro-organisms,if people will be in vivo will induce the body to produce drug resistance,Some diseases are treated.Based on the previous research results of this research group,it is very important to develop a kind of efficient green catalyst system to remove organic pollutants from wastewater.Advanced oxidation technology（AOPS）is based on the generation of intermediate free radicals,hydroxyl radicals（·OH）and sulfate radicals（SO4·-）and other free radical oxidation method,compared with traditional oxidants,intermediate radicals have a very Strong activity and lower selectivity,their standard oxidation potential is higher,can be effective oxidation of refractory antibiotic contaminants.For different target pollutants,you need to select the most suitable oxidant,different oxidants correspond to the different oxidation mechanism and route.Metal phthalocyanine compounds and cytochrome P-450 active center metalloporphyrin similar structure,similar to the catalytic activity and selectivity of biological enzymes,the use of different carrier loading or different oxidant activation,can be prepared in a variety of different functions Catalytic system.Activated carbon fiber has a unique physical adsorption properties and porous structure,good electrochemical properties,often used as a variety of catalyst carrier used in many fields.（ACFs-FeTNPc,ACFs-CONH-FeTNPc）were prepared by modifying the activated carbon fibers using deamination and amidation,respectively,using two different bonding methods.Theresults of UV-vis,XPS and FTIR indicated that FeMATNPc was successfully supported on the activated carbon fiber.Sulfamethoxazole（SMX）and Acid Red（AR1）were selected as target pollutants,H₂O₂ and PMS as oxidant,the catalytic oxidation capacity of the catalyst was studied.The experimental results show that ACFs-FeTNPc / H₂O₂ system has higher activity than FeTNPc / H₂O₂ under neutral condition,which indicates that the introduction of ACF as carrier can greatly improve the catalytic activity.The catalytic activity of ACFs-CONH-FeTNPc / PMS system was higher than that of ACFs-CONH-FeTNPc /H₂O₂.EPR test showed that the two catalytic systems had hydroxyl radical（·OH）and persulfate radical（SO4·-）,respectively.ACFs-FeTNPc/H₂O₂ reaction was a hydroxyl radical-mediated reaction with a certain High-priced mechanism.The ACFs-CONH-FeTNPc/ H₂O₂ reaction is a radical reaction of sulfate radical and hydroxyl radical.The synthesis of supported catalysts was achieved by covalent bonding,and different catalytic systems were formed by different oxidants,which laid a solid foundation for the optimization of the catalytic system.