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Degradation Mechanism of Cationic Red X-GRL by Ozonation 被引量:14
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作者 Wei Rong ZHAO Xin Hua XU +1 位作者 hui Xiang SHI da hui wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第12期1309-1312,共4页
The degradation mechanism of Cationic Red X-GRL was investigated when the intermediates, the nitrate ion and the pH were analyzed in the ozonation. The degradation of the Cationic Red X-GRL includes the de-auxochrome... The degradation mechanism of Cationic Red X-GRL was investigated when the intermediates, the nitrate ion and the pH were analyzed in the ozonation. The degradation of the Cationic Red X-GRL includes the de-auxochrome stage, the decolour stage, and the decomposition of fragment stage. During the degradation process, among the six nitrogen atoms of Cationic Red X-GRL, one is transferred into a nitrate ion, one becomes the form of an amine compound, and the rest four are transformed into two molecules of nitrogen. In the course of the ozonation of Cationic Red X-GRL, the direct attack of ozone is the main decolour effect. 展开更多
关键词 OZONATION cationic Red X-GRL MECHANISM INTERMEDIATES DYE decolourization.
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Synergetic Effects of UV/Fe^(3+) Combined with Electrocatalysis for p-Nitrophenol Degradation 被引量:3
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作者 Ming Hua ZHOU Zu Cheng WU da hui wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2002年第4期375-378,共4页
Synergetic effects for p-nitrophenol degradation were observed in the combination of two-advanced oxidation processes, UV/Fe3+ and electrocatalysis. The enhancement of removal rate for p-nitrophenol and COD was aroun... Synergetic effects for p-nitrophenol degradation were observed in the combination of two-advanced oxidation processes, UV/Fe3+ and electrocatalysis. The enhancement of removal rate for p-nitrophenol and COD was around 123% and 278%, respectively. The possible contributions for the synergetic effects were the electrochemically regeneration of ferric ion and the role of the oxygen that formed on the anode. 展开更多
关键词 UV/Fe3+ ELECTROCATALYSIS synergetic effect p-nitrophenol degradation AOPs.
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Catalytic Dechlorination of Chlorobenzene in Water by Pd/Fe System 被引量:6
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作者 Xin Hua XU Hong Yi ZHOU da hui wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第7期700-703,共4页
Chlorobenzene was dechlorinated by Pd/Fe bimetallic system in water through catalytic reduction. The dechlorination rate increases with increase of bulk loading of Pd due to the increase of both the surface loading o... Chlorobenzene was dechlorinated by Pd/Fe bimetallic system in water through catalytic reduction. The dechlorination rate increases with increase of bulk loading of Pd due to the increase of both the surface loading of the Pd and the total surface area. For conditions with 0.005% Pd/Fe, 45% dechlorination efficiency was achieved within 5 h. The dechlorinated reaction is believed to take place on the bimetal surface in a pseudo-first-order reaction, with the rate constant being 0.0043 min-1. 展开更多
关键词 Reductive dechlorination CATALYTIC PD/FE chlorobenzene.
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