Determination of phenol degradation in chloride ion rich water by ferrate using a chromatographic method in combination with on-line mass spectrometry analysis. Issue 36 (30th August 2019)

• Record Type: Journal Article
• Authors: Wu, Debo; Xiong, Yihan; He, Minghe; Yang, Shuiping; Cai, Jialing; Wu, Zhangxiong; Sun, Shengpeng; Chen, Xiaodong; Wu, Winston Duo
• Is Part Of: Analytical methods. Volume 11:Issue 36(2019)
• Page Start: 4651
• Page End: 4658
• Publication Date: 2019-08-30
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/c9ay01527b
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : On-line monitoring of phenol degradation in Cl − -rich water by Fe(vi ) using EESI-MS. Abstract : The degradation of phenol in Cl − -rich water by Fe(vi ) was investigated using both chromatographic methods (HPLC and IC) and an on-line direct mass spectrometry (MS) analysis technique. Participation of Cl − during phenol degradation was observed through the formation of p -chlorophenol and coupled species with phenol. Though only a small concentration of Cl − was involved in the reaction, the presence of Cl − could affect the behavior of phenol substantially. With the increase of the Cl − concentration, generation of p -benzoquinone and p -chlorophenol was increased. Meanwhile, phenol in the bulk solution displayed a sharp decline followed by a gradual increase. The developed on-line MS analysis facilitated real-time monitoring of phenol changes in the reaction system. The results showed that phenol degradation by Fe(vi ) with the presence of a high concentration of Cl − followed a second-order reaction process. The degradation pathway of phenol was also identified, with p -chlorophenol, p -benzoquinone, maleic acid and formic acid as the main byproducts.