Degradation of pesticide Cartap in Padan 95SP by combined advanced oxidation and electro-Fenton process

被引：15

作者：

Hoang, Nguyen Tien ^{[1
]}

Holze, Rudolf ^{[1
,2
,3
]}

机构：

[1] Tech Univ Chemnitz, Inst Chem, AG Elektrochem, D-09107 Chemnitz, Germany

[2] St Petersburg State Univ, Inst Chem, St Petersburg 199034, Russia

[3] Nanjing Tech Univ, Sch Energy Sci & Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 211816, Jiangsu, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2021年 / 25卷 / 01期

关键词：

Boron-doped diamond electrode; Electro-Fenton process; Advanced oxidation process; Cartap; Padan; 95SP; INDIRECT ELECTROCHEMICAL TREATMENT; DOPED DIAMOND ANODE; PHOTOELECTRO-FENTON; PHOTOCATALYTIC DEGRADATION; WASTE-WATER; AQUEOUS-SOLUTION; CHLORIDE-IONS; AZO DYES; REMOVAL; REAGENT;

D O I：

10.1007/s10008-020-04581-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electro-Fenton process combined with a boron-doped diamond-positive electrode in a one-compartment cell has shown efficient degradation of Cartap (95% in Padan 95SP) by hydroxyl radicals (center dot OH) generated in the electro-Fenton and the electrochemical oxidation processes. The influence of added NaOCl in a pretreatment step, effects of H2O2 concentration, Fe2+-ion addition, presence of further metals acting as co-catalysts, and solution pH on the efficiency of Cartap degradation were studied. The concentration of Cartap was determined by UV-vis spectroscopy according to the 5,5-dithiobis-(2-nitrobenzoic acid) procedure. The efficiency reaches approximately 80% when measured as total carbon concentration decrease, even with increased concentrations of H2O2, Fe2+, or metal ions added as co-catalyst. This limitation is presumably due to recalcitrant intermediates, which cannot be destroyed by center dot OH.

引用

页码：73 / 84

页数：12

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