Photocatalysis of clofibric acid under solar light in summer and winter seasons / Wenzhen Li in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5384-5393 Titre : Photocatalysis of clofibric acid under solar light in summer and winter seasons Type de document : texte imprimé Auteurs : Wenzhen Li, Auteur ; Shuguang Lu, Auteur ; Zhaofu Qiu, Auteur Année de publication : 2011 Article en page(s) : pp. 5384-5393 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Solar radiation Photocatalysis Résumé : The performance of clofibric acid (CA) degradation in Milli-Q water and wastewater treatment plant (WWTP) effluent by solar/TiO2 and solar/ZnO was investigated in summer and winter seasons. The effects of NO3 and HCO3― anions, humic acid (HA), and H2O2 on CA photocatalysis were evaluated. Significant difference in CA degradation in two seasons was observed. Both NO3― and HCO3― anions adversely affected CA degradation, particularly at high HCO3― concentration. CA degradation slightly increased with 0.5 mg L―1 HA in solar/TiO2 in summer, but was significantly inhibited in winter at 20 mg L―1 HA However, the inhibitive effect of 20 mg L―1 HA on CA removal in solar/ZnO had no remarkable difference in two seasons. The degradation in solar/TiO2/H2O2 was similar to that in solar/TiO2, but was inhibited obviously in solar/ZnO/H2O2. When applying photocatalytic process into WWTP effluent, degradation rates were apparently lower compared to Milli-Q water and temperature caused a great adverse effect on CA elimination. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128661 [article] Photocatalysis of clofibric acid under solar light in summer and winter seasons [texte imprimé] / Wenzhen Li, Auteur ; Shuguang Lu, Auteur ; Zhaofu Qiu, Auteur . - 2011 . - pp. 5384-5393. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 5384-5393 Mots-clés : Solar radiation Photocatalysis Résumé : The performance of clofibric acid (CA) degradation in Milli-Q water and wastewater treatment plant (WWTP) effluent by solar/TiO2 and solar/ZnO was investigated in summer and winter seasons. The effects of NO3 and HCO3― anions, humic acid (HA), and H2O2 on CA photocatalysis were evaluated. Significant difference in CA degradation in two seasons was observed. Both NO3― and HCO3― anions adversely affected CA degradation, particularly at high HCO3― concentration. CA degradation slightly increased with 0.5 mg L―1 HA in solar/TiO2 in summer, but was significantly inhibited in winter at 20 mg L―1 HA However, the inhibitive effect of 20 mg L―1 HA on CA removal in solar/ZnO had no remarkable difference in two seasons. The degradation in solar/TiO2/H2O2 was similar to that in solar/TiO2, but was inhibited obviously in solar/ZnO/H2O2. When applying photocatalytic process into WWTP effluent, degradation rates were apparently lower compared to Milli-Q water and temperature caused a great adverse effect on CA elimination. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128661

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