引用本文:
王素华, 陈德文. 对位取代苯磺酸钠在溶液及界面的光反应研究[J]. 物理化学学报,
1996, 12(04): 315-319.
doi:
10.3866/PKU.WHXB19960406
Citation: Wang Su-Hua, Chen De-Wen. The Study on the Photochemical Degradation of ρ-Substituted Sdium Phenylsulphonate[J]. Acta Physico-Chimica Sinica, 1996, 12(04): 315-319. doi: 10.3866/PKU.WHXB19960406
Citation: Wang Su-Hua, Chen De-Wen. The Study on the Photochemical Degradation of ρ-Substituted Sdium Phenylsulphonate[J]. Acta Physico-Chimica Sinica, 1996, 12(04): 315-319. doi: 10.3866/PKU.WHXB19960406
对位取代苯磺酸钠在溶液及界面的光反应研究
English
The Study on the Photochemical Degradation of ρ-Substituted Sdium Phenylsulphonate
Abstract:
The photoreaction behaviour of p-substituted sodium phenylsulphonate in aqueous solution and colloidal system has been studied by means of spin trapping-ESR method. The results indicated that the reaction processes and the intermediate free radicals formed were dependent of the pH values as well as the existence of colloid. The sulfur-centered radicals SO3- , which were the main product were observed, and the carboncentered radicals and hydrogen radicals were also detected in a certain range of pH values. It was discovered that the primary rate of free radical generation changed with the pH values in an exponential from while pH<4.
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Key words:
-
ESR-spin traping
- / Sodium sulfanilate
- / Photolysis
- / CdS colloid
- / Radical intermediate
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