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采用一种新型空气 (氧 )电极作现场光化学反应的 H2 O2 发生源 .该电极用空气中的氧作反应原料 ,在电极的电催化作用下生成 H2 O2 ,电流效率最高可达 90 % ,而且对溶液的 p H适应范围较广 .将这种新型的空气(氧 )电极引入光催化反应系中 ,使“光化学氧化反应”和“光催化氧化反应”同时发生在同一体系 ,在不改变光照条件下可提高有机污染物的光氧化速度 .本实验测定结果表明 :在含空气 (氧 )电极的光催化反应体系中 ,十二烷基磺酸钠 ( SDS)的降解速度比在两种独立体系中明显增大
A new type of air (oxygen) electrode was used as a source of H 2 O 2 for photochemical reaction in the field.The electrode uses oxygen in the air as a reaction material to generate H 2 O 2 under the electrocatalysis of the electrode, and the current efficiency can reach up to 90% The p H of the solution to adapt to a wider range of this new air (oxygen) electrode into the photocatalytic reaction system, the “photochemical oxidation reaction” and “photocatalytic oxidation reaction” occurred in the same system at the same time, without changing the light The photocatalytic reaction system with air (oxygen) electrode, sodium dodecyl sulfate (SDS) degradation rate than in two independent System significantly increased