Abstract：
:Oxidative degradation of Alizarin Red S (ARS) in aqueous solutions by using electro-Fenton was studied. At first, effect of operating parameters such as current density, aeration rate and initial pH on the degradation of ARS were studied by using UV-vis spectrum, respectively. Then, under the optimal operating conditions (current density: 10.0mAcm(-2), aeration rate: 1000mLmin(-1), initial pH: 2.8), the identification of degradation products of ARS was carried out by using GC-MS and HPLC, meanwhile its degradation pathway was proposed according to the intermediates. Considering the location, intensity and intensity ratio of fluorescence center peak of the ARS in aqueous solution, a convenient and quick monitoring method by using excitation-emission matrix fluorescence spectrum technology was developed to monitor the degradation degree of ARS through electro-Fenton process. Furthermore, it is suggested that the developed method would be promising for the quick analysis and evaluation of the degradation degree of the pollutants with π-conjugated system.
journal_name
Chemospherejournal_title
Chemosphereauthors
Lai B,Zhou Y,Wang J,Yang Z,Chen Zdoi
10.1016/j.chemosphere.2013.09.056subject
Has Abstractpub_date
2013-11-01 00:00:00pages
2805-13issue
11eissn
0045-6535issn
1879-1298pii
S0045-6535(13)01296-4journal_volume
93pub_type
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