%0 Journal Article
%T Degradation Mechanism of Acid Red B by Cathodic Oxidation<br>酸性红B染料的阴极氧化降解机理
%A LEI Yang-ming
%A SHEN Zhe-min
%A YU Qing-chun
%A HU Xiao-fang
%A ZHU Song-he
%A WANG Wen-hua
%A <br>雷阳明
%A 申哲民
%A 余晴春
%A 胡晓芳
%A 祝松鹤
%A 王文华
%J 环境科学
%D 2005
%I 
%X Acid red B (ARB) solution with pH=3 was electrolyzed in a two-chamber cell using Pt/C gas diffusion electrode (GDE) as cathode. The color and COD removal ratio in cathode chamber were 94.2% and 66.8% respectively; and the color and COD removal ratio in anode chamber were 73.3% and 56.6% respectively, which indicated that O2 can be reduced to H2O2 and OH in the cathode chamber, then ARB was degraded. Through IR and GC-MS analysis for the intermediates of ARB in the cathode chamber, 20 intermediates have been detected, including 14 esters, 3 acids and 3 compounds with -NO2 or N-OH groups and the probable degradation pathway of ARB in the cathode chamber was given.
%K acid red B
%K gas diffusion electrode
%K degradation mechanism
%K electrochemistry<br>酸性红B
%K 气体扩散电极
%K 降解机理
%K 电化学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=E4D0007D20F0B420&yid=2DD7160C83D0ACED&vid=96C778EE049EE47D&iid=94C357A881DFC066&sid=EDA22B444205D04A&eid=0E672BDDDB85EA48&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=15