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Application of Functional Polymeric Membranes in Photocatalytic Degradation and Electro-generated Ferrate

Author: HuangLiZhu
Tutor: ChenZhen
School: Fujian Normal University
Course: Polymer Chemistry and Physics
Keywords: Nafion membrane Photocatalytic Degradation Methylene blue Cationic polyacrylamide ( CPAM ) Carboxymethyl cellulose (CMC) Ferrate
CLC: X703
Type: Master's thesis
Year: 2007
Downloads: 109
Quote: 0
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Abstract


The ferrous ions embedded in the Nafion membrane , the use of Fe 3 / Fe 2 photocatalytic degradation of methylene blue decolorization rate of 90% . Degradation of methylene blue H 2 O 2 and the effect of pH . Degradation of methylene blue catalytic oxidation reaction of the first order kinetics , apparent rate constant for 0.5689 min -1 . The the Fe 3 < / sup > , a crosslinking agent, a cationic polyacrylamide ( CPAM ) - carboxymethylcellulose (CMC) was prepared polymer electrolyte membrane , the membrane composition and morphological characterization by infrared spectroscopy and scanning electron microscopy CPAM - CMC membrane used in the electrolytic ferrate . The experimental results show that the the CPAM - CMC polymer electrolyte membrane can effectively prevent the FeO 4 2 - diffusion to the cathode chamber the OH At the same time generated in the cathode chamber - < / sup > in a timely manner complements the consumption of the anode chamber OH - < / sup > . Improved dual- cathode - CPAM - CMC polymer electrolyte membrane - porous cylindrical cast iron anode cell electrolysis preparation of high ferrite . Cylindrical cast iron anode current density on both sides of the inside and outside the uniform distribution , the polarization is small , thereby improving the current efficiency and the obtained concentration of ferrate . The results show that the degradation of benzidine simulated wastewater with the electrolytic freshly ferrate < / sub > ( chemical oxygen demand) , of COD Cr removal rate of 85% , benzidine eventually mineralization into small molecules inorganic .

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