Citation: Ling Chen, Hai Yun Zhou, Lan Liu, Qin Ying Deng. Mechanism study on UV-induced photodegradation of nonylphenol ethoxylates by intermediate products analysis[J]. Chinese Chemical Letters, ;2007, 18(4): 473-475. doi: 10.1016/j.cclet.2007.02.004 shu

Mechanism study on UV-induced photodegradation of nonylphenol ethoxylates by intermediate products analysis

a School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China;
b Instrumental Analysis and Research Center, Sun Yat-Sen University, Guangzhou 510275, China

Received Date: 6 November 2006

Photodegradation of nonylphenol ethoxylates (NP₁₀EO) was investigated in laboratory scale under UV irradiation. The intermediate photodegradation products were analyzed by LC-ESI-MS. Three kinds of intermediate products including aldehydic compounds, carboxylic compounds and cyclohexanyl compounds were identified. Five main degradation routes involving the oxidation of the alkyl chain and ethoxylate unit, shortening of the alkyl chain and ethoxylate unit, hydrogenation of the benzene ring were proposed.
- Photodegradation,
- Nonylphenol ethoxylates,
- Intermediate products,
- Mechanism study
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